{"title":"PLC Communication Modules","description":"\u003cp data-start=\"400\" data-end=\"735\"\u003ePLC communication modules allow programmable logic controllers to communicate with industrial networks, remote \u003ca href=\"https:\/\/plgautomation.com\/collections\/plc-i-o-modules\"\u003eI\/O systems\u003c\/a\u003e, and other automation devices within a control system. These modules enable data exchange between controllers, HMIs, drives, sensors, and industrial networking equipment used in modern manufacturing environments.\u003c\/p\u003e\n\u003cp data-start=\"737\" data-end=\"1109\"\u003ePLG Automation supplies PLC communication modules from major industrial automation manufacturers including \u003cstrong data-start=\"844\" data-end=\"945\"\u003eAllen-Bradley, Siemens, Schneider Electric, Mitsubishi, Omron, ABB, GE Fanuc, Eaton, and Square D\u003c\/strong\u003e. Our inventory includes Ethernet communication modules, industrial network interfaces, and fieldbus communication processors used in a wide range of PLC platforms.\u003c\/p\u003e\n\u003cp data-start=\"1111\" data-end=\"1614\"\u003eMaintenance engineers and system integrators frequently source \u003ca href=\"https:\/\/plgautomation.com\/collections\/industrial-automation-spare-parts\"\u003espare\u003c\/a\u003e PLC communication modules when upgrading industrial networks, \u003ca href=\"https:\/\/plgautomation.com\/collections\/plc-replacement-parts\"\u003ereplacing failed interface cards\u003c\/a\u003e, or maintaining compatibility with existing automation infrastructure. These modules are commonly used in platforms such as \u003cstrong data-start=\"1393\" data-end=\"1613\"\u003eAllen-Bradley ControlLogix and SLC systems, Siemens SIMATIC PLC networks, Schneider Modicon controllers, Mitsubishi MELSEC automation platforms, Omron SYSMAC systems, ABB automation systems, and GE Fanuc PLC hardware\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"1616\" data-end=\"1894\"\u003ePLG Automation provides fast RFQ support and sourcing for PLC communication modules used in industrial automation systems. If a specific communication module cannot be located on our website, our team can often help locate surplus or discontinued industrial networking hardware.\u003c\/p\u003e","products":[{"product_id":"allen-bradley-1756-en2tr-ethernet-ip-communication-module","title":"Allen-Bradley 1756-EN2TR EtherNet\/IP Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 1756-EN2TR EtherNet\/IP Communication Module provides dual RJ45 Ethernet ports with Device Level Ring (DLR) redundancy, enabling fast EtherNet\/IP networking for ControlLogix controllers, distributed I\/O, drives, and other automation devices. It mounts in a ControlLogix chassis slot and supports 10\/100 Mbps speeds, up to 256 TCP\/IP connections, and network topologies including DLR, Linear, and Star, with 1 A backplane current at 5.1 V DC and operating temperatures from 0 to 60 °C; LED indicators show module and network status. Commonly used in manufacturing lines, conveyor\/material handling systems, packaging equipment, water and wastewater facilities, and general process control environments where reliable Ethernet communication is required; common replacements include 1756-ENBT, 1756-EN3TR, and 1756-EN2T.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Surplus Original Box","offer_id":50558254809390,"sku":"Surplus Original Box","price":2513.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/1_be3ce232-c231-42d4-a903-8d33403de745.jpg?v=1751981621"},{"product_id":"allen-bradley-1756-enbt-ethernet-ip-communication-module","title":"Allen-Bradley 1756-ENBT Ethernet\/IP Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 1756-ENBT EtherNet\/IP Communication Module provides Ethernet network connectivity for ControlLogix PLC platforms, enabling EtherNet\/IP communication between ControlLogix controllers, distributed I\/O, and other automation equipment.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Surplus Original Box","offer_id":50558258217262,"sku":"Surplus Original Box","price":489.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/1756-ENBT_1000x1000_5559bc39-9523-4a98-b004-13090314c483.jpg?v=1752623826"},{"product_id":"allen-bradley-1756-enbt-ethernet-ip-network-interface-module","title":"Allen-Bradley 1756-ENBT EtherNet\/IP Network Interface Module","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 1756-ENBT EtherNet\/IP Network Interface Module enables Ethernet connectivity between ControlLogix controllers and distributed devices in industrial automation systems. Mounted in a ControlLogix chassis, it serves as a bridge between the backplane and the Ethernet network, enabling communications with HMIs, remote I\/O, drives, and other PLCs over EtherNet\/IP. Key specifications include 1 × Ethernet (RJ-45) port at 10\/100 Mbps, up to 64 TCP connections and 128 CIP connections, with power requirements of 700 mA at 5.1 V DC (and 3 mA at 24 V DC) and ~3.7 W dissipation, and an operating temperature range of 0 to 60°C. It is compatible with ControlLogix chassis and Logix controllers, with common replacements including 1756-EN2T, 1756-EN2TR, and 1756-EN3TR.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Surplus Original Box","offer_id":50558262018350,"sku":"Surplus Original Box","price":749.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/1756-ENBT.jpg?v=1752566253"},{"product_id":"allen-bradley-20-750-dnet-devicenet-interface-adapter","title":"Allen-Bradley 20-750-DNET DeviceNet Interface Adapter","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 20-750-DNET DeviceNet Interface Adapter is a DeviceNet communication interface for PowerFlex 750-series AC drives, enabling reliable data exchange between the drive and PLC controllers on industrial networks. This module connects PowerFlex 750 drives to DeviceNet, supporting drive monitoring, parameter access, and control over the network, and mounts in the drive control pod. It is compatible with PowerFlex 753 and PowerFlex 755 drives and is powered from the drive interface, with an operating temperature range of 0°C to 50°C. Applications include centralized monitoring, configuration, and control of motor drive systems within automation environments such as conveyors, packaging machinery, material handling equipment, and process control lines that require real-time drive status and command communication. Common replacements include Allen-Bradley 20-750-ENETR and 20-750-PNET2P, as well as Siemens 6GK7343-1EX30-0XE0.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Surplus Original Box","offer_id":50558267752750,"sku":"Surplus Original Box","price":490.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/20-750-DNET.webp?v=1752562306"},{"product_id":"allen-bradley-1756-enbt-ethernetip-comms-module-plc","title":"Allen-Bradley 1756-ENBT EtherNet\/IP Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 1756-ENBT EtherNet\/IP Communication Module is a ControlLogix network interface module that enables Ethernet-based communication between PLCs, I\/O devices, and industrial automation networks. Built for EtherNet\/IP, it supports real-time data exchange across distributed ControlLogix systems via a 10\/100 Mbps RJ45 Ethernet port and a ControlLogix backplane interface, and it is designed as a chassis-mounted solution compatible with ControlLogix PLCs operating from 0°C to 60°C. Maintenance teams, OEM machine builders, and system integrators rely on this module for network expansion, automation upgrades, system integration, and replacement of existing PLC communication interfaces. Typical applications include manufacturing lines, packaging equipment, material handling systems, robotic work cells, and process control environments where reliable Ethernet connectivity between controllers, HMIs, drives, and remote I\/O is essential. Common replacements and cross-references include Allen-Bradley 1756-EN2T and 1756-EN2TR, with Siemens 6GK7343-1EX30-0XE0 listed as a cross-reference. Specifications: Part Number 1756-ENBT; Series ControlLogix; Network Protocol EtherNet\/IP; Ethernet Speed 10\/100 Mbps; Communication Port RJ45; Interface Type ControlLogix backplane; Mounting Type chassis-mounted; Operating Temperature 0°C to 60°C.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Surplus Original Box","offer_id":50558277222702,"sku":"Surplus Original Box","price":489.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/1756-ENBT_1000x1000_8c932864-e751-473b-99df-45b7d7e06835.jpg?v=1752550857"},{"product_id":"allen-bradley-22-comm-e-ethernet-ip-communication-adapter","title":"Allen-Bradley 22-COMM-E Ethernet\/IP Communication Adapter","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 22-COMM-E Ethernet\/IP Communication Adapter delivers EtherNet\/IP connectivity for compatible PowerFlex drives, enabling real-time control and monitoring over standard Ethernet infrastructure. This internal drive-mounted network interface module uses an RJ45 Ethernet port with 10\/100 Mbps data rate to support drive control, diagnostics, and parameter configuration across PLCs, HMIs, and plant networks. Designed for industrial environments, it typically operates 0°C to 50°C and is widely used in conveyors, packaging equipment, material handling machinery, process automation lines, and factory control systems requiring centralized monitoring of motor drives through EtherNet\/IP. Common replacements include Allen-Bradley 20-COMM-E, Allen-Bradley 20-750-ENETR, and Siemens 6GK7343-1EX30-0XE0.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Surplus Original Box","offer_id":50558291411246,"sku":"Surplus Original Box","price":419.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/22-COMM-E.webp?v=1752548341"},{"product_id":"omron-cj1w-etn21-ethernet-communication-module","title":"Omron CJ1W-ETN21 Ethernet Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Omron CJ1W-ETN21 Ethernet Communication Module delivers Ethernet-based network connectivity for Omron CJ-Series PLC systems, enabling PLC-to-PC and PLC-to-PLC data exchange across industrial Ethernet networks and supporting remote monitoring and diagnostics. Rack-mounted in CJ1\/CJ2 PLC racks, it is used in manufacturing lines, process control, machine automation, and plant-wide networks where reliable data exchange with SCADA systems, HMIs, and enterprise networks is required. Key specifications include Ethernet (100Base-TX), TCP\/IP, UDP\/IP, and FINS protocols, plus built-in capabilities such as an FTP server, email communication, and SNTP time synchronization; it integrates with CX-Programmer and CX-Integrator for configuration and programming. Compatible with Omron CJ1 and CJ2 PLC systems, the CJ1W-ETN21 supports industrial control panels and networked automation environments where Ethernet-based communication is essential. Common replacements include Omron CJ1W-EIP21 Ethernet\/IP Module, CJ1W-ETN11 Ethernet Module, and CS1W-ETN21 Ethernet Unit, offering familiar integration within existing CJ-Series installations.\u003c\/p\u003e\u003c\/div\u003e","brand":"Omron","offers":[{"title":"New","offer_id":50558321328430,"sku":"New","price":742.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/images_3_880544a6-7eae-4d45-b0a0-901dc5809073.jpg?v=1752471420"},{"product_id":"allen-bradley-1756-en4tr-ethernet-ip-communication-module","title":"Allen-Bradley 1756-EN4TR EtherNet\/IP Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 1756-EN4TR EtherNet\/IP communication module provides high-speed EtherNet\/IP connectivity in ControlLogix systems, with two copper RJ45 ports and two fiber SFP ports to support network redundancy. It supports 10\/100\/1000 Mbps copper data rates and includes Device Level Ring (DLR) and general network redundancy, mounting in a 1756 ControlLogix chassis slot for installation in industrial automation panels. Common replacements include the Allen-Bradley 1756-EN2TR and 1756-EN3TR, and this module is used across manufacturing lines, process control, oil and gas facilities, power generation, and water treatment environments where robust Ethernet communication for drives, HMIs, remote I\/O, and controllers over EtherNet\/IP is required.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Surplus Original Box","offer_id":50558367138094,"sku":"Surplus Original Box","price":8397.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/1756-EN4TR_1000x1000_e3e3f513-5828-4f31-8547-c5d8ac80b8f4.jpg?v=1752208255"},{"product_id":"delta-electronics-dvpen01-sl-ethernet-communication-module","title":"Delta Electronics DVPEN01-SL Ethernet Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Delta Electronics DVPEN01-SL Ethernet Communication Module provides Ethernet connectivity for Delta DVP series PLCs, enabling robust networked data exchange in industrial automation. It uses a standard RJ45 Ethernet interface and supports 10\/100 Mbps data transfer, with Modbus TCP\/IP and Ethernet\/IP (depending on configuration) for PLC communication; it is commonly deployed in manufacturing lines, packaging systems, water treatment facilities, and building automation to enable real-time monitoring and remote control. Software configuration is performed via Delta programming tools, and the unit mounts on DIN rail or panel; it is powered through the PLC backplane, designed for industrial control panel installations. Common replacements include DVPEN02-SL Ethernet Module, DVPEN01-SL2 Communication Module, or a DVPES2 Series PLC with built-in Ethernet.\u003c\/p\u003e\u003c\/div\u003e","brand":"Delta","offers":[{"title":"New","offer_id":50558377001262,"sku":"New","price":536.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/DVPEN01-SL.jpg?v=1752144059"},{"product_id":"keyence-dl-ep1-ethernet-ip-communication-module","title":"Keyence DL-EP1 EtherNet\/IP Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Keyence DL-EP1 EtherNet\/IP Communication Module provides real-time Ethernet\/IP connectivity for sensor networks, connecting sensor amplifiers to PLCs and centralized controllers in automation environments. It is commonly installed in automated inspection systems, production lines, and material handling equipment where sensor data must be integrated into Ethernet networks. The module supports EtherNet\/IP with both implicit and explicit messaging, offers cyclic and UCMM\/Class 3 communication, and handles up to 64 connections. It supports a 10BASE-T\/100BASE-TX interface with 10\/100 Mbps transmission and a maximum cable length of 100 m. Up to 15 sensor amplifiers (D-bus compatible) can be connected, and the unit operates from a 20–30 VDC supply with power consumption of ≤1500 mW. Operating temperature ranges from -20°C to +55°C and humidity from 35% to 85% RH (non-condensing). The housing is polycarbonate and the unit weighs approximately 70 g. Typical replacements include Keyence DL-EN1, DL-PN1, and DL-EC1A.\u003c\/p\u003e\u003c\/div\u003e","brand":"Keyence","offers":[{"title":"New","offer_id":50558393057582,"sku":"New","price":541.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/s-l1200_1_bf181ee7-e803-435d-9997-02c853dfb8b3.jpg?v=1752117904"},{"product_id":"mitsubishi-electric-fr-a7nc-e-cc-link-communication-module","title":"Mitsubishi Electric FR-A7NC-E CC-Link Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Mitsubishi Electric FR-A7NC-E CC-Link communication module is a plug-in option for Mitsubishi FREQROL inverters, compatible with the FR-A700 and FR-E700 series, that enables CC-Link-based communication between the inverter and PLC or automation networks for centralized control, remote diagnostics, and coordinated drive operation. Installed as an internal plug-in module in the inverter option port, it provides remote I\/O, parameter access, and monitoring via the CC-Link interface, with LED indicators for communication and operation, and it weighs approximately 0.225 kg. Common applications include conveyors, pumps, HVAC systems, fans, and manufacturing equipment where Mitsubishi inverters must communicate with PLCs over CC-Link networks to support networked drive control, system upgrades, and integrated automation. Manufacturer part number FR-A7NC-E (FRA7NCE) identifies this CC-Link communication module as the plug-in option for the FR-A700\/FR-E700 families.\u003c\/p\u003e\u003c\/div\u003e","brand":"Mitsubishi","offers":[{"title":"New","offer_id":50558399611182,"sku":"New","price":238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/ec561316-79c0-4cd9-89b9-0ed5dc251765-productPanelImage.jpg?v=1752111325"},{"product_id":"mitsubishi-electric-qj71mb91-modbus-serial-communication-module","title":"Mitsubishi Electric QJ71MB91 Modbus Serial Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Mitsubishi Electric QJ71MB91 Modbus Serial Communication Module is a MELSEC-Q series add-on that enables Modbus RTU\/ASCII communication between the PLC and external devices, supporting both master and slave modes. It provides one RS-232 channel and one RS-422\/485 channel, with data rates from 300 to 115200 bps and reach up to 15 m on RS-232 or 1200 m on RS-422\/485, and supports up to 32 slaves per channel. The module handles up to 4K words of I\/O data and up to 64K Modbus points per type, mounts rack-mounted on the Q-series base, is powered by 5 VDC from the backplane (current ~0.31 A), and measures 98 × 27.4 × 90 mm with a weight of about 0.2 kg and an Active\/standard status. Applications include PLC-to-HMI communication, inverter and drive control, and multi-device networking in industrial automation, with common replacements including QJ71MT91 (Modbus TCP) and QJ71E71-100 (Ethernet module).\u003c\/p\u003e\u003c\/div\u003e","brand":"Mitsubishi","offers":[{"title":"New","offer_id":50558406787374,"sku":"New","price":309.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Mitsubishi_QJ71MB91_A1433_1.jpg?v=1752046647"},{"product_id":"mitsubishi-electric-qj71mt91-communication-module","title":"Mitsubishi Electric QJ71MT91 Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Mitsubishi Electric QJ71MT91 Communication Module enables CC-Link network communication between MELSEC-Q Series PLCs and field devices, delivering reliable, high-speed data exchange on industrial networks. It mounts in a Q Series base unit (rack-mount) and is powered from the PLC base unit, using a CC-Link dedicated port with token-passing communication and LED status indicators for network and module status. It supports CC-Link Master\/Local Station networks at up to 10 Mbps and up to 64 stations (configuration dependent), making it suitable for real-time data transfer in assembly lines, material handling systems, packaging equipment, and process automation. Key specs include MPN QJ71MT91; Series MELSEC-Q; Network Type CC-Link Master\/Local Station; Transmission Speed Up to 10 Mbps; Number of Stations Up to 64; Interface CC-Link Dedicated Port; Power Supply from PLC Base Unit; Mounting Type Rack Mount; Compatibility Mitsubishi MELSEC-Q Series PLC Systems.\u003c\/p\u003e\u003c\/div\u003e","brand":"Mitsubishi","offers":[{"title":"New","offer_id":50558409015598,"sku":"New","price":842.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/QJ71MT91.jpg?v=1752047915"},{"product_id":"mitsubishi-electric-corporation-qj71mb91-modbus-communication-module","title":"Mitsubishi Electric Corporation QJ71MB91 Modbus Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Mitsubishi Electric MELSEC-Q QJ71MB91 Modbus Communication Module enables MODBUS RTU serial communication between MELSEC-Q PLCs and external devices in both master and slave modes, making it a versatile bridge in industrial automation. It provides a single serial channel over RS-232, RS-422, or RS-485 with data rates up to 115.2 kbps, and supports configurable data formats including parity, stop bits, and baud rate to match various device interfaces. Designed for rack mounting on the Q-series base unit, it maintains compatibility with Mitsubishi MELSEC-Q Series PLCs and supports full master\/slave operation for interoperable networked control. Typical uses span SCADA interfaces, energy management, water treatment, HVAC, and factory automation where PLCs coordinate with sensors, variable-frequency drives, meters, and other third-party equipment. Common replacements listed for this module include Mitsubishi QJ71C24N, QJ71C24N-R2, and QJ71E71-100.\u003c\/p\u003e\u003c\/div\u003e","brand":"Mitsubishi","offers":[{"title":"New","offer_id":50558416978222,"sku":"New","price":1042.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/QJ71MB91_V.jpg?v=1751959797"},{"product_id":"mitsubishi-electric-qj71e71-100-ethernet-module","title":"Mitsubishi Electric QJ71E71-100 Ethernet Module","description":"\u003cdiv\u003e\u003cp\u003eThe Mitsubishi Electric QJ71E71-100 Ethernet module is a PLC Ethernet communication interface for Mitsubishi Q-Series PLCs, enabling high-speed data exchange, remote access, and connectivity to HMIs and SCADA systems in factory automation. It supports TCP\/IP, UDP, and Mitsubishi MC-Protocol over Ethernet, and provides an RJ-45 10\/100 Mbps port with auto-negotiation for standard Cat5\/6 cabling. Diagnostics are available via Link, Activity, and Status LEDs; power is supplied through the PLC backplane, and mounting is a PLC rack slot in Q-Series installations. This module is designed for PLC-to-PLC, PLC-to-HMI, and PLC-to-SCADA networking, delivering reliable Ethernet connectivity between controllers and supervisory levels for production lines, packaging, material handling, and process automation where real-time data transfer and remote monitoring are essential. Common replacements include Mitsubishi QJ71E71-100-K and QJ71E71-80, with Omron CS1W-ETN21 noted as a cross-reference.\u003c\/p\u003e\u003c\/div\u003e","brand":"Mitsubishi","offers":[{"title":"New","offer_id":50558417273134,"sku":"New","price":794.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/images_29e6eb6b-cb12-4925-9a8b-cd8ef56cf187.png?v=1751959037"},{"product_id":"mitsubishi-electric-a1sj71uc24-r4-plc-communication-module","title":"Mitsubishi Electric A1SJ71UC24-R4 PLC Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Mitsubishi Electric A1SJ71UC24-R4 PLC communication module provides high-speed serial connectivity between Mitsubishi MELSEC A\/Q\/F series PLCs and external devices such as HMIs, PCs, drives, and other controllers. It supports configurable RS-232C, RS-422, and RS-485 protocols up to 115.2 kbps, with DB-9 or terminal block connectors depending on platform. Designed for MELSEC A\/Q\/F rack or panel installations, it enables serial data exchange, remote I\/O access, and diagnostics to support remote monitoring, programming access, and device interoperability in factory and process automation. Mounting is via PLC rack or panel, powered from the PLC backplane or an auxiliary supply, and it includes communication status LEDs to indicate link health.\u003c\/p\u003e\u003c\/div\u003e","brand":"Mitsubishi","offers":[{"title":"New","offer_id":50558425104686,"sku":"New","price":273.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/16_03_2023_19_46_08_A1SJ71UC24_R4_Mitsubishi.jpg?v=1751947726"},{"product_id":"mitsubishi-electric-qj71e71-b2-plc-communication-module","title":"Mitsubishi Electric QJ71E71-B2 PLC Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Mitsubishi Electric QJ71E71-B2 PLC communication module delivers high-speed Ethernet networking for MELSEC-Q PLCs, enabling Ethernet-based data exchange and remote access within control cabinets and PLC racks. As an Ethernet communication interface, it provides dual 10\/100 Mbps RJ-45 ports and supports TCP\/IP, UDP, and Mitsubishi MC-Protocol over Ethernet for PLC-to-PLC, PLC-to-HMI, and PLC-to-SCADA communication. Mounted in a PLC rack slot and powered via the backplane, it offers Link, activity, and status LEDs, with remote I\/O access, data exchange, and diagnostics support in an industrial temperature range. Compatible with Mitsubishi MELSEC-Q series platforms and designed for factory and process automation, it is commonly used for network expansion and integration with higher-level systems; common replacements include QJ71E71-100, QJ71E71-R2, and Omron CS1W-ETN21.\u003c\/p\u003e\u003c\/div\u003e","brand":"Mitsubishi","offers":[{"title":"New","offer_id":50558428021038,"sku":"New","price":664.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/QJ71E71-B2.jpg?v=1751939598"},{"product_id":"mitsubishi-electric-fx5-232adp-communication-module","title":"Mitsubishi Electric FX5-232ADP Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Mitsubishi Electric FX5-232ADP Communication Module expands MELSEC iQ-F FX5 PLC systems with an RS-232C serial interface for FX5U\/FX5UC CPUs. It supports asynchronous serial communication with configurable baud rate, 7\/8 data bits, 1\/2 stop bits, and parity options (None, Even, Odd), and includes built-in isolation for reliable point-to-point connections. Connection is via a Mini-DIN \/ serial connector (model dependent) and the module mounts on the left-side expansion adapter for the FX5 CPU. Common applications include machine control panels, packaging equipment, barcode systems, and other industrial automation lines requiring serial device connectivity to HMIs, barcode scanners, printers, weighing scales, serial sensors, CNC interfaces, or SCADA gateways.\u003c\/p\u003e\u003c\/div\u003e","brand":"Mitsubishi","offers":[{"title":"New","offer_id":50558429528366,"sku":"New","price":443.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/280513.webp?v=1751940727"},{"product_id":"mitsubishi-electric-a1sj71c24-r2-communication-module","title":"Mitsubishi Electric A1SJ71C24-R2 Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Mitsubishi Electric A1SJ71C24-R2 communication module is a serial interface module for Mitsubishi MELSEC-A and Q series PLCs, enabling serial communication between PLCs and peripheral devices such as HMIs, programming consoles, and other controllers. It supports RS-232C, RS-422, and RS-485 (configurable) at baud rates up to 115.2 kbps, with DB-9 or terminal block connectors depending on platform, and it provides communication status LEDs. It mounts in a PLC rack slot or on a panel and is designed for industrial temperature ranges, making it suitable for factory and process automation environments. Typical applications include machine control panels, material handling systems, packaging lines, CNC integration, and remote diagnostics, and it is commonly used for system networking, remote interfacing, and replacing failed or legacy communication modules.\u003c\/p\u003e\u003c\/div\u003e","brand":"Mitsubishi","offers":[{"title":"New","offer_id":50558430052654,"sku":"New","price":280.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/images_4_c1d73f84-8657-4f54-a847-43a541ae463b.jpg?v=1751939307"},{"product_id":"omron-cj1wscu41v1-serial-communication-module","title":"Omron CJ1WSCU41V1 Serial Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Omron CJ1W-SCU41-V1 Serial Communication Module is a plug-in two-port interface for Omron CJ Series PLCs that enables serial data exchange between the controller and external devices such as HMIs, sensors, barcode readers, printers, and other serial equipment. Mount this module in a CJ PLC rack to add two serial ports and support RS-232\/RS-422\/RS-485 communication (model dependent), with standard serial data speeds up to the model’s maximum. Connector options include DB9 or terminal block variants depending on the specific CJ1W-SCU41-V1 version, and it features status LEDs to indicate active communication. Common applications include packaging machines, conveyor systems, machine controllers, and factory floor setups that require legacy serial integration, retrofit, or expansion within Omron automation projects, designed for industrial temperature ranges and an industrial environmental rating.\u003c\/p\u003e\u003c\/div\u003e","brand":"Omron","offers":[{"title":"New","offer_id":50558436507950,"sku":"New","price":420.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/CJ1WSCU41V1.jpg?v=1751875470"},{"product_id":"omron-c120-lk201-ev1-host-link-unit-plc-communication-module","title":"Omron C120-LK201-EV1 Host Link Unit PLC Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Omron C120-LK201-EV1 Host Link Unit is a PLC communications module for Omron C-series controllers that enables bidirectional serial data exchange between the PLC and external devices such as HMIs and computers. Used in control panels, manufacturing systems, and process automation lines, it communicates over RS-232C and RS-422A via the Omron Host Link protocol through a dedicated port. The module is rack-mounted, power is supplied through the PLC backplane, and it provides LED status indicators to monitor operation. It is compatible with Omron C-series PLCs and is commonly used to connect operator interfaces, supervisory systems, and peripheral devices for reliable data exchange in factory automation and production environments. Common replacements include the Omron C500-LK201, C200H-LK201, and CJ1W-SCU21.\u003c\/p\u003e\u003c\/div\u003e","brand":"Omron","offers":[{"title":"New","offer_id":50558447092014,"sku":"New","price":1644.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Omron_C120-LK201-EV1.jpg?v=1751856301"},{"product_id":"omron-cpm1a-drt21-devicenet-communication-module","title":"Omron CPM1A-DRT21 DeviceNet Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Omron CPM1A-DRT21 DeviceNet Communication Module is a PLC expansion card for Omron CPM1A systems that adds DeviceNet networking capabilities to support distributed automation control in industrial environments. Designed for DIN-rail mounting, it uses a terminal block for network wiring and provides remote I\/O communication with LED status indicators, while power is supplied either by the CPM1A PLC or an external supply depending on the model, and operating temperature ranges from 0°C to +55°C. This DeviceNet interface supports fieldbus communication for CPM1A series PLCs in factory automation, material handling, conveyors, packaging lines, and other production equipment requiring decentralized control, and common replacements include CJ1W-DRM21, CP1W-DRM21, and C200HW-DRM21.\u003c\/p\u003e\u003c\/div\u003e","brand":"Omron","offers":[{"title":"New","offer_id":50558448042286,"sku":"New","price":391.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/l_120-25-118602-198x198.jpg?v=1751851760"},{"product_id":"siemens-6gk7542-1ax00-0xe0-6gk7-542-1ax00-0xe0-cm1542-1-communication-module","title":"Siemens 6GK7542-1AX00-0XE0 Communication Module","description":"\u003cdiv\u003e\u003cp\u003eSiemens 6GK7542-1AX00-0XE0 is a CM 1542-1 (S7-1500) communication module that provides Industrial Ethernet \/ PROFINET connectivity for SIMATIC S7-1500 PLCs. It offers 2 × RJ45 Ethernet ports (10\/100 Mbit\/s) and supports TCP\/IP, UDP, ISO-on-TCP, and S7 communication, with SNMPv1, multicast, and NTP time synchronization. Power is supplied via backplane bus (approx. 15 V DC), with current consumption ~0.22 A and power dissipation around 3.3 W; it mounts on DIN rail and has IP20 protection, weighing roughly 0.35–0.36 kg. Commonly used in industrial automation networks, manufacturing plants, energy management systems, water treatment facilities, and process industries to enable secure and high-speed data communication between PLCs, SCADA systems, HMIs, and enterprise networks, including diagnostics and remote access.\u003c\/p\u003e\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"New","offer_id":50558455087406,"sku":"New","price":1617.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/6GK75421AX000XE0.jpg?v=1751593290"},{"product_id":"siemens-6es7-901-3cb30-0xa0-communication-module","title":"Siemens 6ES7 901-3CB30-0XA0 Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Siemens 6ES7 901-3CB30-0XA0 communication cable provides PC-to-SIMATIC S7-200 PLC connectivity for programming and diagnostics, making it a go-to tool for maintenance stations and industrial automation environments that rely on S7-200 systems. As a PC\/PPI multi-master cable, it links a PC serial interface to the S7-200 port via RS232 to RS485 (PPI) signaling, supporting PPI and ASCII (Freeport) protocols. It supports data rates up to 187.5 kbit\/s and has a cable length of approximately 5–5.6 meters. Power is supplied from the PLC CPU, and the unit includes LED indicators for Tx, Rx, and PPI to aid troubleshooting. Operating temperature range is 0°C to +60°C. This product is discontinued (spare part) and is commonly replaced by Siemens 6ES7901-3DB30-0XA0 or the Siemens PC Adapter USB A2 (6GK1571-0BA00-0AA0).\u003c\/p\u003e\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"New","offer_id":50558456168750,"sku":"New","price":281.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/6ES7901-3CB30-0XA0.jpg?v=1751527988"},{"product_id":"abb-mod600flecmir-rio600-communication-module","title":"ABB MOD600FLECMIR RIO600 Communication Module","description":"\u003cdiv\u003eMOD600FLECMIR is ABB’s fiber‑optic communication module for the RIO600 Remote I\/O system, designed as the LECM variant with a multimode fiber‑optic LC Ethernet interface to connect quickly and reliably in industrial environments. As part of the MOD600 family, this module is listed as a supported communication option for RIO600 (product version 1.7), enabling standalone functionality and IEC 61850 Edition 2 support. It interfaces with ABB Relion protection relays and the COM600 station automation unit, using IEC 61850 GOOSE and Modbus TCP communications over a galvanic Ethernet link. In practice, the FLECMIR facilitates data exchange between field sensors and protection\/automation devices, supporting both binary and analog signal transfer through the RIO600 architecture in grid automation applications. ABB’s RIO600 documentation describes the modular design where a power supply, a communication module, and I\/O modules come together to extend I\/O capacity and enable robust Substation Automation networking, with the FLECMIR specifically providing the fiber path for reliable, long‑haul Ethernet links in harsh environments. This fiber variant is intended for high‑reliability deployments requiring the GOOSE\/Modbus TCP traffic between Relion IEDs and COM600, offering the performance benefits of LC fiber connectivity within the RIO600 ecosystem.\u003c\/div\u003e","brand":"ABB","offers":[{"title":"New","offer_id":51656742928686,"sku":null,"price":757.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_ede8ed56-26c4-46ba-ba87-36daf15826d3.jpg?v=1769463110"},{"product_id":"abb-ehtk210-industrial-ethernet-communication-module","title":"ABB EHTK210 Industrial Ethernet Communication Module","description":"\u003cdiv\u003e\u003cp\u003eABB EHTK210 Terminal Kit is a high-current termination accessory for ABB equipment, designed to accept conductor sizes from 6 to 250 kcmil and to provide a secure, durable termination point at the end of power cables in industrial environments. This kit is intended for use in large-dimension cable terminations within ABB-based power distribution systems, including control panels and switchgear, where reliable, low-resistance connections are critical for maintaining performance under demanding loads and in harsh industrial settings. The 6-250 kcmil range covers a broad spectrum of conductor gauges, enabling designers to select appropriately sized lugs and terminations for applications ranging from moderate to very large feeder cables, while accommodating common insulation types found in industrial power layouts. As part of ABB's terminal-kit lineup, the EHTK210 is designed to integrate with ABB power components through common mounting schemes and hardware footprints, supporting streamlined assembly and service workflows in electrical rooms and equipment cabinets.\u003c\/p\u003e\u003c\/div\u003e","brand":"ABB","offers":[{"title":"New","offer_id":51656792473902,"sku":null,"price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_05d6f9e2-7271-4e32-af20-e5ff4732592d.jpg?v=1769463532"},{"product_id":"abb-dsqc1031-00-3hac058664-001-i-communication-module","title":"ABB DSQC1031 00 3HAC058664-001 I Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe ABB DSQC1031 3HAC058664-001 I\/O Communication Module is a digital add-on that expands ABB robot-controller I\/O by providing 16 digital inputs and 16 digital outputs. It is designed to pair with a DSQC1030 base unit as part of ABB's Scalable I\/O architecture, enabling an expanded 16-in\/16-out interface for ABB IRC5 and OmniCore controllers. The base device communicates over the EtherNet\/IP protocol, and the DSQC1031 integrates into this EtherNet\/IP I\/O network to deliver discrete signaling for tasks such as automation sequencing, sensing, and actuator control.\u003c\/p\u003e\u003c\/div\u003e","brand":"ABB","offers":[{"title":"New","offer_id":51656811053358,"sku":null,"price":508.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_9d739310-6a52-4f21-8618-d433e9ec54e6.jpg?v=1769463582"},{"product_id":"abb-5750001-gd-1-communication-module","title":"ABB 5750001-GD 1 Communication Module","description":"\u003cdiv\u003e\u003cp\u003eABB DSCA-125A 5750001-GD\/1 Communication Module is a MasterBus 200 interface card (DSCA-125A) that enables data exchange on ABB industrial automation networks. Listed as a Master Communications Module for MasterBus 200, the DSCA-125A serves as the network interface between ABB drives and controllers in MB200-based automation configurations. The 5750001-GD\/1 designation identifies this specific revision of the DSCA-125A family.\u003c\/p\u003e\u003c\/div\u003e","brand":"ABB","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51656816951598,"sku":null,"price":283.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_3fa77da7-93cd-4519-a805-6fb7465e8fde.jpg?v=1769463601"},{"product_id":"abb-ci854ak01-interface-module","title":"ABB CI854AK01 Interface Module","description":"\u003cdiv\u003e\u003cp\u003eThe ABB CI854AK01 interface module provides reliable communication and functional interfacing between ABB control hardware and drive or I\/O networks in industrial automation systems. It is commonly installed in PLC racks, distributed control systems, and robot controllers to support control-system expansion, network integration, and replacement of failed interface modules, enabling signal interfacing, protocol translation, and network communication across ABB PLC and drive ecosystems (specific families vary). The module is designed for plug-in installation into a compatible controller backplane and can be mounted on a rack or DIN rail, using multi-pin interface connectors (system dependent) with integrated LEDs for operation and fault monitoring, and it operates within an industrial ambient range inside an industrial-grade enclosure. Common replacements include ABB CI854AK02, Allen-Bradley 1734-AENT, and Siemens 6ES7 231-4HD32-0XB0.\u003c\/p\u003e\u003c\/div\u003e","brand":"ABB","offers":[{"title":"New Surplus No Box","offer_id":51656836022574,"sku":null,"price":1639.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/1_48f44043-bbc6-43e2-a7a7-e7f8ca770177.jpg?v=1775006697"},{"product_id":"abb-3hne00421-1-dsqc-378b-cc-link-communication-module","title":"ABB 3HNE00421-1 DSQC 378B CC-Link Communication Module","description":"\u003cdiv\u003e\u003cp\u003eABB 3HNE00421-1 DSQC 378B CC-Link Communication Module is a DeviceNet\/CC-Link gateway I\/O device (board designation DSQC 378B) that provides a bridge between ABB robot controllers and CC-Link fieldbus networks. Carrying article number 3HNE00421-1, this CC-Link communications module enables a DeviceNet interface to connect with CC-Link, allowing ABB automation systems to exchange I\/O data across the two networks without replacing control hardware. The DSQC 378B is listed in ABB’s DeviceNet Master\/Slave documentation as a DeviceNet\/CCLink gateway, confirming its role as a gateway I\/O device within ABB’s robotics ecosystem. Typical applications include integrating ABB robot controllers with CC-Link devices on a CC-Link network, enabling cross-network I\/O communication for automation tasks. This gateway module is part of ABB’s DSQC family of interface devices designed to extend ABB robotics connectivity into CC-Link environments.\u003c\/p\u003e\u003c\/div\u003e","brand":"ABB","offers":[{"title":"New","offer_id":51656892907822,"sku":null,"price":905.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_8e49410d-a108-4311-b09e-cedc3139f4e0.jpg?v=1769464115"},{"product_id":"abb-3bse030220r1-profibus-dp-interface-module","title":"ABB 3BSE030220R1 Profibus DP Interface Module","description":"\u003cdiv\u003e\u003cp\u003eThe ABB CI854A Profibus interface module (3BSE030220R1) serves as the Profibus DP bridge between ABB PLC controllers and distributed field devices, enabling reliable data exchange across automation networks. Designed for ABB PLC backplanes, it mounts on a DIN rail or as a plug-in backplane module and uses a standard 9-pin D-sub Profibus DP connector, supporting baud rates up to 12 Mbps for real-time control. It includes status LEDs for communication and fault monitoring, operates from an industrial logic supply powered by the backplane, and is housed in an industrial-grade enclosure suited to control cabinets and operation in industrial ambient temperatures. Common replacements include ABB CI854AK01, Siemens 6ES7 321-1BH02-0AA0, and Allen-Bradley 1784-PBM, reflecting its role in connecting PLCs to remote I\/O, drives, and intelligent field devices over a Profibus network across discrete manufacturing, process plants, and material handling environments.\u003c\/p\u003e\u003c\/div\u003e","brand":"ABB","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51656901329198,"sku":null,"price":261.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/2_d3f60e92-a389-41f9-aaa7-7ccb302b56f3.jpg?v=1775009135"},{"product_id":"abb-1sap170902r0001-ethercat-communication-module","title":"ABB 1SAP170902R0001 EtherCAT Communication Module","description":"\u003cdiv\u003e\u003cp\u003eABB CM579-ETHCAT, part number 1SAP170902R0001, is the EtherCAT Master communication module for ABB AC500 PLCs. It adds EtherCAT master capability to the AC500 CPU by connecting to the CM bus and exposing two RJ45 ports (ETHCAT1 and ETHCAT2) for EtherCAT communication with slave devices. The module includes five status LEDs and two address rotary switches (the latter not used in standard configurations). In Automation Builder, CM579-ETHCAT is configured as the EtherCAT master to control an EtherCAT network of slaves, with ABB’s EtherCAT libraries documenting master operations for the AC500 platform. Typical applications include coordinating servo drives, I\/O blocks, and sensors on an EtherCAT network in industrial automation, with the AC500 platform acting as the central controller for real-time, deterministic communication.\u003c\/p\u003e\u003c\/div\u003e","brand":"ABB","offers":[{"title":"New","offer_id":51656938455342,"sku":null,"price":2306.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_9a6f9f84-b30e-4e3f-a11d-c25bb0a53795.jpg?v=1769464472"},{"product_id":"industrial-bdm34200-modbus-communication-module","title":"Industrial BDM34200 Modbus Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe AEG 170BDM34200 Modbus Plus remote I\/O module expands a Modicon 170‑series controller with distributed digital I\/O, delivering 16 discrete inputs and 16 discrete outputs on a Modbus Plus network. Designed for industrial automation, this module enables fast, peer‑to‑peer data exchange between a central controller and remote I\/O points, simplifying wiring while maintaining reliable digital signaling to sensors and actuators. It fits into the Modicon 170 I\/O family as a dedicated 16‑in\/16‑out remote I\/O unit and uses the Modbus Plus interface popular in legacy manufacturing systems for streamlined control across multiple devices. The part number is 170BDM34200, and the device is commonly described as a Modbus Plus remote I\/O module within the AEG\/Modicon 170 lineup. In typical applications, it serves as an expansion module for conveyor systems, packaging lines, machine cells, and other industrial processes where distributed digital I\/O must be monitored and actuated from a single PLC, reducing cabling complexity while preserving quick response times for discrete I\/O operations.\u003c\/p\u003e\u003c\/div\u003e","brand":"AEG","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51657048686894,"sku":null,"price":222.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_98d979e2-dbdc-4b48-9508-1f89527708b0.jpg?v=1769465547"},{"product_id":"alcatel-3bk07344aaad02-industrial-telecommunication-module","title":"Alcatel 3BK07344AAAD02 Industrial Telecommunication Module","description":"\u003cdiv\u003e\u003cp\u003eAlcatel 3BK07344AAAD02 Industrial Telecommunication Module is an Alcatel-Lucent Enterprise device identified by the part number 3BK07344AAAD02. Designed for industrial networking environments, this module is intended to integrate within ALE’s modular telecom ecosystem to support scalable network deployments in demanding settings. The model designation 3BK07344AAAD02 provides a precise reference for procurement and inventory within Alcatel-Lucent Enterprise portfolios. Buyers planning upgrades or expansions should verify compatibility with their existing ALE equipment and system requirements to ensure a correct fit within their industrial communications infrastructure.\u003c\/p\u003e\u003c\/div\u003e","brand":"ALCATEL","offers":[{"title":"New","offer_id":51657184051502,"sku":null,"price":283.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_93e13410-4c18-4a8a-b97d-33e6f5d53b3f.jpg?v=1769466670"},{"product_id":"alcatel-lucent-bbg9-snc5670dab-ohctl-telecommunication-module","title":"Alcatel-Lucent BBG9 SNC5670DAB OHCTL Telecommunication Module","description":"\u003cdiv\u003e\u003cp\u003eThe BBG9 SNC5670DAB OHCTL Telecommunication Module Circuit Board is an OHCTL circuit pack used in Alcatel-Lucent’s DDM-2000 OC-3 Multiplexer family. It provides the TL1\/X.25 interface to operations support systems (OSS) such as Telcordia, enabling TL1-based management and X.25 sessions for remote configuration, fault reporting, and performance monitoring of OC-3 transport paths. As a plug-in circuit pack described as BBG9 OHCTL, it integrates with the DDM-2000 shelf to deliver control and telemetry functions within the OC-3 multiplexing environment. The BBG9 OHCTL card designation within the SNC5670DAB family identifies this module as the hardware component responsible for management-plane connectivity between the multiplexing platform and OSS infrastructures. In typical carrier deployments, this module supports centralized management workflows by enabling TL1 transactions and X.25 data sessions needed for fault isolation, performance analysis, and provisioning tasks across OC-3 links.\u003c\/p\u003e\u003c\/div\u003e","brand":"Alcatel-Lucent","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51657185984814,"sku":null,"price":2748.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_57bee508-b85c-4eed-87a4-4340b6bf9635.jpg?v=1769466682"},{"product_id":"allen-bradley-1788-cnc-a-flexlogic-communication-module","title":"Allen-Bradley 1788-CNC A FlexLogic Communication Module","description":"\u003cdiv\u003e\u003cp\u003eAllen-Bradley 1788-CNC A FlexLogic Communication Module is a ControlNet interface card for Rockwell Automation's FlexLogix platform, serving as the ControlNet communication module (daughter card) that links a FlexLogix controller to a ControlNet network for remote I\/O and device communications. Identified as model 1788-CNC A, it ships with firmware version 1.008. In FlexLogix controller configurations, the 1788-CNC family (including CNCR variants) provides the ControlNet bridge for deterministic I\/O updates and device messaging across the network. This module enables integration of ControlNet devices and remote I\/O with a FlexLogix-based control system, making it suitable for industrial automation environments that rely on ControlNet connectivity. Common applications include connecting ControlNet I\/O from distributed equipment to a FlexLogix controller to coordinate sequencing, safety interlocks, and real-time I\/O operations within manufacturing and process control lines.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51657237856558,"sku":null,"price":181.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_8ff7debf-2785-42b2-bef5-0ae191794799.jpg?v=1769467028"},{"product_id":"allen-bradley-1768-m04se-a-sercos-communication-module","title":"Allen-Bradley 1768-M04SE-A SERCOS Communication Module","description":"\u003cdiv\u003e\u003cp\u003eAllen-Bradley 1768-M04SE-A is a CompactLogix SERCOS interface module that provides four servo axes through a SERCOS network when paired with a 1768-L4x controller. Designed to extend the motion capabilities of the CompactLogix platform, the module supports up to four motion axes and, in many configurations, includes two feedback axes to help synchronize servo drives. It is intended for use with CompactLogix L4x CPUs such as the 1768-L43 (4 axes) and the 1768-L45 family, and it connects to Kin etix servo drives (for example, 2093 Kin etix 2000, 2094 Kin etix 6000, 2099 Kin etix 7000, and 2098 Ultra3000) over the SERCOS interface to coordinate multi-axis motion. This module sits within Rockwell Automation’s motion control ecosystem, enabling precise, centralized programming and timing through the SERCOS standard, and is typically deployed in applications requiring synchronized multi-axis movement, such as automated packaging, material handling, or machine tooling where a CompactLogix controller oversees servo-driven axes. \u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51657297592622,"sku":null,"price":835.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_56a9afb9-625c-478c-8413-bbbc81c58e59.jpg?v=1769467637"},{"product_id":"allen-bradley-1756-dnb-a-fw-4-002-controllogix-devicenet-communication-module","title":"Allen-Bradley 1756-DNB DeviceNet Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 1756-DNB is a single-port DeviceNet scanner (master) module for ControlLogix that bridges a ControlLogix chassis to a DeviceNet network. It supports 125, 250, and 500 kbps baud rates and can handle up to 63 DeviceNet slave devices on a network (64 total nodes including the scanner), with a 1-slot width and a front 5-pin screw-terminal block for CAN_H, CAN_L, drain\/shield, +24 V DC, and 0 V. The module typically draws 400 mA from the 5.1 V backplane and minimal backplane current from the 24 V supply, operates from 0 to 60 °C, and is rated IP20 when mounted. Firmware version 4.002 is supported, and configuration uses RSNetWorx for DeviceNet or Studio 5000\/RSLogix 5000 Add-On Profiles; the product carries UL Listed, cULus, CE, and ODVA conformance.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51657302049070,"sku":null,"price":83.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_0653b3b7-71af-4546-a3d1-add389167204.jpg?v=1769467693"},{"product_id":"allen-bradley-1756-cnbr-controlnet-communication-module","title":"Allen-Bradley 1756-CNBR ControlNet Communication Module","description":"\u003cdiv\u003e\u003cp\u003eAllen-Bradley 1756-CNBR ControlNet Communication Module is a redundant ControlNet interface for Rockwell Automation's ControlLogix systems that bridges a ControlNet network to the ControlLogix backplane. The CNBR (ControlNet Redundant Bridge) supports 40–48 ControlNet connections at a 5 Mbps data rate, enabling reliable cyclic and scheduled data exchanges between ControlNet devices and the Controller. It provides media redundancy via dual BNC connectors and is powered from the ControlLogix backplane, eliminating the need for a separate power supply. As part of the 1756 ControlNet family, it integrates with standard Rockwell configuration workflows for ControlNet networks and is suitable for connecting remote I\/O, drives, and other ControlNet devices to a ControlLogix controller. Note that Rockwell Automation has announced the 1756-CNBR module as discontinued effective December 31, 2024, so customers planning new installations or replacements should evaluate current-generation interface options or migration paths for legacy ControlNet networks.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51657302278446,"sku":null,"price":36.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_43c9252e-8e48-4957-a66b-a754e6b60a37.jpg?v=1769467696"},{"product_id":"prosoft-technology-mvi46-mnet-modbus-tcp-ip-communication-module","title":"ProSoft Technology MVI46-MNET Modbus TCP\/IP Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe ProSoft Technology MVI46-MNET Modbus TCP\/IP Communication Module is an in‑chassis Modbus TCP\/IP interface for Allen‑Bradley SLC platforms that enables bidirectional Modbus communications between SLC controllers and Modbus TCP\/IP devices. It provides two independent 10\/100 Mbps Ethernet ports and supports Modbus TCP\/IP Client (master) and Server (slave) operation, allowing the SLC CPU to poll Modbus devices or respond to Modbus TCP requests from other devices. Data exchange is mapped to the SLC data table space, so Modbus registers and coils can be read or written by ladder logic routines in the SLC program. Configuration and mapping are performed with ProSoft Configuration Builder, and the module integrates into the SLC chassis as a single‑slot Modbus interface module. Typical uses include connecting SLC 500 processors to Modbus TCP devices such as remote I\/O, drives, or PLCs on an Ethernet network; the two‑port design supports multiple concurrent Modbus sessions, enabling scalable plant‑wide integration. The module relies on standard Modbus TCP\/IP protocols and requires IP addressing on the network; it can function as either a Modbus client or server depending on application, bridging Modbus TCP networks with legacy Allen‑Bradley automation systems.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"New","offer_id":51657365651758,"sku":null,"price":2519.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_1d0ce998-2143-4bba-9369-2df6b861cbcc.jpg?v=1769468278"},{"product_id":"allen-bradley-900052-rev5-communication-module","title":"Allen-Bradley 900052-REV5 Communication Module","description":"\u003cdiv\u003e\n\u003cp\u003eAllen-Bradley 900052-REV5 Communication Module is a legacy Rockwell Automation interface card, identified by part number 900052 with revision 5. This Rev5 module is commonly found available as refurbished or used from third-party sellers, reflecting its status as an older AB accessory. The 900052 family was designed to add a dedicated communication interface to compatible Allen-Bradley PLC chassis, aligning with Rockwell Automation's modular approach to expanding control system capabilities. Buyers should verify that the module matches their controller model and installation configuration before purchase, as compatibility can vary by base unit and firmware. When installed in the appropriate AB system, the module enables additional connectivity options that were standard in its era of automation hardware, making it a practical option for maintaining legacy installations or spares stock for service teams.\u003c\/p\u003e\n\u003cspan\u003e \u003c\/span\u003e\n\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51657394323758,"sku":null,"price":39.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_1fefb6cd-648c-453f-b223-06790f3b88e5.jpg?v=1769468519"},{"product_id":"allen-bradley-74103-116-53-serial-communication-module","title":"Allen-Bradley 74103-116-53 Serial Communication Module","description":"\u003cdiv\u003e\u003cp\u003eAllen-Bradley 74103-116-53 Serial Communication Module is a dedicated interface for the 1336 Plus Force servo drive system, enabling serial communications within that platform. With the 74103-116-53 serial module, controllers can exchange data over the drive's serial communication channel as part of the 1336 Plus Force control architecture. This module is identified by part number 74103-116-53 and is used specifically with Allen-Bradley 1336 Plus Force equipment.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"New","offer_id":51657555214638,"sku":null,"price":1450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_5c5409e9-a70f-4799-92bd-399f6dbe2379.jpg?v=1769470095"},{"product_id":"allen-bradley-5094-aentr-ethernet-ip-communication-module","title":"Allen-Bradley 5094-AENTR EtherNet\/IP Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 5094-AENTR FLEX 5000 EtherNet\/IP RJ45 adapter is a communication module that connects up to eight FLEX 5000 I\/O modules to a ControlLogix\/CompactLogix Ethernet network. It provides dual RJ45 Ethernet ports with 10\/100\/1000 Mbps speeds for high-bandwidth EtherNet\/IP data, and it mounts on a DIN rail in a compact field enclosure powered by a single 18-32 V DC supply. As part of the FLEX 5000 family, the 5094-AENTR supports Device Level Ring (DLR) topology across FLEX 5000 EtherNet\/IP adapters for improved network resilience, so a single cable fault does not interrupt communications. The adapter's eight-module capacity makes it suitable for distributed I\/O configurations, while maintaining a slim footprint for machine automation and process control applications. It is designed to integrate with Rockwell Automation controllers and Studio 5000 environments, delivering deterministic I\/O data over EtherNet\/IP to sensors, actuators, and remote I\/O modules.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"New","offer_id":51657609183534,"sku":null,"price":724.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_9fe6f52f-08fb-4803-b8c4-11e4d6b710f2.jpg?v=1769470669"},{"product_id":"allen-bradley-5069-l3100erms2-ethernet-ip-communication-module","title":"Allen-Bradley 5069-L3100ERMS2 EtherNet\/IP Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 5069-L3100ERMS2 EtherNet\/IP Communication Module is an expansion module for CompactLogix 5069 controllers that adds dual EtherNet\/IP connectivity and USB access to the network. It provides two Ethernet\/IP ports (10 Mbps, 100 Mbps, 1 Gbps capable) and a USB Type B 2.0 port for configuration and maintenance. The module supports up to 80 EtherNet\/IP nodes, device-level topologies (Device Level Ring, Star, and Linear), and 31 I\/O expansion. Its compact footprint measures 5.4 in x 0.9 in x 4.2 in (138 mm x 22 mm x 105 mm) and weighs 0.39 lb (175 g). This module is intended for use with CompactLogix 5069 L3xx controllers; verify compatibility with your exact controller model and Studio 5000 version.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51657617539374,"sku":null,"price":13557.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_87bba33e-909d-47d7-b066-81867ccde6d4.jpg?v=1769470768"},{"product_id":"allen-bradley-2711p-rn6-communication-module","title":"Allen-Bradley 2711P-RN6 Communication Module","description":"\u003cdiv\u003e\u003cp\u003eAllen-Bradley 2711P-RN6 is a dual-port DH+\/DH-485 communication module that plugs into PanelView Plus 6 terminals (700–1500 series) to connect the human‑machine interface to Data Highway Plus and DH‑485 networks. It provides a separate port for each protocol, enabling PanelView Plus 6 to communicate with PLCs and other devices on both DH+ and DH‑485 networks. Available as 2711P-RN6 (standard) and 2711P-RN6K (conformal coated for harsher environments), the module extends the terminal’s networking capabilities without additional external adapters. This 2711P communication module is designed specifically for PanelView Plus 6 terminals, simplifying wiring and expanding network compatibility for industrial control applications.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"New","offer_id":51657680388398,"sku":null,"price":363.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_b8cf44cc-9d4f-4ca8-9b5e-8ea1d97bcce5.jpg?v=1769471376"},{"product_id":"allen-bradley-2711p-rn22c-communication-module","title":"Allen-Bradley 2711P-RN22C Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 2711P-RN22C is an RS-232 isolated communication module designed for PanelView Plus 400 and 600 terminals. It provides a dedicated RS-232 serial interface to connect a PanelView Plus terminal with serial devices while preserving isolation on the communication path. This module is cataloged as part of the 2711P RN-series of PanelView Plus communication modules and is documented for use with PanelView Plus 400\/600 bases. Distributors commonly list variant catalog numbers such as 2711P-RN22C-A and 2711P-RN22C-N. A PanelView Plus base unit with Ethernet and RS-232 support is required to enable this module, ensuring the necessary interfaces are present for operation.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"New","offer_id":51657680421166,"sku":null,"price":957.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_e558317c-7679-4e2b-bbbc-9d45afa5239d.jpg?v=1769471376"},{"product_id":"allen-bradley-2711p-rn15s-panelview-plus-communication-module","title":"Allen-Bradley 2711P-RN15S PanelView Plus Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 2711P-RN15S is a ControlNet communication module that installs with PanelView Plus terminals to provide ControlNet network connectivity for PanelView Plus 700-1500 and PanelView Plus CE units. It offers two RJ-45 ports (Channel A and Channel B) that enable dual-channel ControlNet communications, supporting both scheduled and unscheduled data exchanges with Rockwell Automation controllers and other ControlNet devices. The RN15S is specified as Series A, Rev A with firmware version 2.07 or later. As a dedicated network interface rather than a standalone controller, it enables the PanelView Plus HMI to participate in ControlNet messaging and data transfer across the PLC network, typically handling tag updates and I\/O signaling through the ControlNet topology. This module is designed to work in the PanelView Plus ecosystem, complementing the terminal's software stack and enabling reliable ControlNet communications as part of an integrated industrial automation solution.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"New","offer_id":51657680453934,"sku":null,"price":145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_d3dbf215-f977-44d9-b81e-bff7f07f551e.jpg?v=1769471377"},{"product_id":"allen-bradley-25-comm-e2p-powerflex-communication-module","title":"Allen-Bradley 25-COMM-E2P PowerFlex Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 25-COMM-E2P PowerFlex Communication Module is a dual-port EtherNet\/IP adapter designed for PowerFlex 520-series drives. Identified by part number 25-COMM-E2P, this module is installed in the PF520-series drive back cover and connects to the drive via two interface connectors, adding two EtherNet\/IP interfaces to the drive. The adapter enables native EtherNet\/IP communications between the PF520 drive and controllers or other EtherNet\/IP devices on the industrial network, extending the PowerFlex networking options without altering basic drive control. This option preserves the drive’s built-in safety and control features while providing Ethernet\/IP network connectivity, making it suitable for applications where the PF520 needs to communicate with a PLC or other networked devices over standard Ethernet\/IP networks.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51657721741614,"sku":null,"price":409.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_7ff7a1b2-8d99-4178-99eb-76e31c8b5e75.jpg?v=1769471709"},{"product_id":"allen-bradley-194706-q06-industrial-communication-module","title":"Allen-Bradley 194706-Q06 Industrial Communication Module","description":"\u003cdiv\u003e\u003cp\u003eAllen-Bradley 194706-Q06 is the 22‑COMM‑E EtherNet\/IP Adapter, an Industrial Communication Module designed to be installed inside a PowerFlex 40 drive to provide EtherNet\/IP connectivity over an RJ45 port. The adapter is mounted within the PowerFlex 40 and serves as the interface between the drive and an EtherNet\/IP network, enabling data exchange with PLCs and other controllers. By default, the 22‑COMM‑E is BOOTP‑enabled for IP configuration out of the box, simplifying initial network setup when a BOOTP server is available. This part integrates into the PowerFlex 40 family to deliver standard Ethernet\/IP communication through a dedicated RJ45 interface. \u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51657732555054,"sku":null,"price":112.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_ec141e6b-5289-4080-a697-394d0491b44b.jpg?v=1769471827"},{"product_id":"allen-bradley-22-comm-d-nsnbc01-communication-module","title":"Allen-Bradley 22-COMM-D NSNBC01 Communication Module","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 22-COMM-D NSNBC01 Communication Module is a DeviceNet-to-DSI (Drive System Interface) adapter that provides DeviceNet connectivity for PowerFlex drive systems. This 22-COMM-D module acts as the interface between a DeviceNet network and the PowerFlex drive’s DSI path, enabling data exchange between the network and the drive’s control interface. The unit is powered from 5 V DC at up to 150 mA on the module, while the DeviceNet network supplies 24 V DC at up to 60 mA to the device, and it ships with firmware version 1.011. It is designed for use with PowerFlex drive systems and carries UL and CE certifications. \u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"New","offer_id":51657732620590,"sku":null,"price":41.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_93fd6999-c5c4-4612-8204-8e928f3d5c87.jpg?v=1769471828"}],"url":"https:\/\/plgautomation.com\/collections\/plc-communication-modules.oembed?page=20","provider":"PLG Automation ","version":"1.0","type":"link"}