Turck BL20-1RS232 RS232 Serial Interface Module

Description:

The Turck BL20-1RS232 serial communication module is used in BL20 distributed I/O and industrial communication systems. Commonly installed in packaging machinery, barcode scanning stations, conveyor systems, printing equipment, and manufacturing lines requiring RS232 communication between field devices and PLC networks. Maintenance teams, OEMs, and system integrators use this part for communication upgrades, machine retrofits, serial device integration, and replacement of legacy interface modules.

Applications:

The Turck BL20-1RS232 provides a serial communication interface between the BL20 modular I/O platform and RS232 devices in industrial automation environments. It is commonly used for connecting barcode scanners, printers, weigh scales, operator terminals, vision systems, and legacy serial equipment to modern PLC and fieldbus networks. The modular BL20 architecture allows the interface module to operate independently of the selected fieldbus protocol while simplifying maintenance and future system expansion.

Technical Specifications:

• Brand: Turck
• Part Number: BL20-1RS232
• Manufacturer Part Number (MPN): 6827169
• Product Type: RS232 Communication Module
• Series: BL20 I/O System
• Function: Serial device communication interface
• Number Of Channels: 1 RS232 interface
• Communication Protocol: RS232
• Signal Type: RS232
• Transmission Mode: Full duplex
• Data Transmission Rate: 300 to 115200 bps
• Supported Signals: RxD, TxD, RTS, CTS
• Receive Buffer Size: 128 bytes
• Transmit Buffer Size: 64 bytes
• Supply Voltage: Via BL20 backplane bus
• Current Consumption: Approximately 140 mA from module bus
• Connection Type: Screw terminal or cage clamp terminal
• Mounting Type: Plug-in module for BL20 base system
• Electrical Isolation: Galvanically isolated from field level via optocouplers
• Diagnostic Features: Status and diagnostic LEDs
• Protection Rating: IP20
• Operating Temperature: 0°C to +55°C
• Dimensions: 12.6 x 74.1 x 55.4 mm
• Weight: Approximately 35 g
• Approvals: CE, cULus, FM Class I Division 2
• Application: Connection of printers, barcode scanners, light curtains, HMIs, and serial devices to industrial control systems.

Common Replacements:

• Turck BL20-1RS485/422
• Turck BL67-1RS232
• Turck BL20-1SSI