Schneider Electric TWDN0Z485D RS-485 Serial Communication Expansion Module

Description:

The Telemecanique TWDNOZ485D is an RS-485 serial communication expansion module designed for Twido programmable logic controller (PLC) systems, providing an additional communication port for industrial networking and serial device integration. Commonly installed in machine automation, conveyor systems, packaging equipment, process control systems, and OEM machinery requiring reliable PLC communication with HMIs, drives, meters, and other Modbus-compatible devices. Maintenance teams, OEMs, and system integrators use this communication module for equipment replacement, PLC network expansion, machine retrofits, and legacy automation system upgrades.

Applications:

The Telemecanique TWDNOZ485D adds a secondary RS-485 communication interface to compatible Twido PLC base controllers, enabling Modbus RTU, ASCII, PC Link, and Remote Link communications with industrial automation devices. It is widely used in factory automation, machine control, process monitoring, and industrial networking applications where dependable serial communications improve system integration and operational reliability.

Technical Specifications:

• Manufacturer Part Number (MPN): TWDNOZ485D
• Manufacturer: Telemecanique (Schneider Electric)
• Product Type: RS-485 Communication Expansion Module
• Product Series: Twido
• Communication Interface: RS-485
• Connector Type: 8-pin Mini-DIN
• Supported Protocols: Modbus RTU, ASCII, PC Link, Remote Link
• Maximum Baud Rate: 19.2 kbps (PC Link), 38.4 kbps (Remote Link)
• Compatible Systems: Twido Modular Base Controllers
• Function: Additional Serial Communication Port
• Mounting Style: PLC Expansion Module
• Application: PLC Communication and Industrial Networking
• Product Status: Discontinued Legacy Automation Module

Common Replacements:

• Schneider Electric TWDNOZ485D
• Schneider Electric TWDNAC485D
• OEM equivalent TWDNOZ485D