Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Module type | CM 1241 RS 422 / 485 |
| Interface | 1 RS-422/485 (X.27) |
| Connector | 9-pole D-sub (pin) |
| Supported protocols | Freeport; ASCII; Modbus RTU master; Modbus RTU device; USS |
| Rated supply voltage | 24 V DC |
| Permissible supply voltage | 20.4 V to 28.8 V DC |
| Maximum current consumption | 220 mA; From backplane bus 5 V DC |
| Protection | IP20 |
| Conformal coating | Class 2 for high reliability |
Applications
- Freeport communication: Supports Freeport communication with configurable telegrams up to 1 kbyte.
- Modbus RTU communication: Supports Modbus RTU master and Modbus RTU device communication with address area 1 through 49 999.
Key Features
- RS-422/485 interface: 1 RS-422/485 interface (X.27) with a 9-pole D-sub connector.
- Serial protocols: Supports Freeport, ASCII, Modbus RTU master, Modbus RTU device, and USS; ASCII and USS are available as library functions.
- Supply voltage: Rated supply: 24 V DC; permissible range: 20.4 V to 28.8 V DC.
- Freeport communication: Maximum telegram length: 1 kbyte; 7 or 8 bits per character; 1 (Standard) or 2 stop bits.
- Diagnostics and protection: Diagnostics function and output-status LED are available; IP degree of protection: IP20.
- Installation dimensions: Width: 30 mm; height: 100 mm; depth: 75 mm; weight, approx.: 155 g.
Frequently Asked Questions
1. What interface does the Siemens 6AG1241-1CH32-4XB0 provide?
It provides 1 RS-422/485 interface (X.27) with a 9-pole D-sub connector.
2. Which protocols does the CM 1241 support?
It supports Freeport, ASCII, Modbus RTU master, Modbus RTU device, and USS. ASCII and USS are available as library functions.
3. What supply voltage does this module require?
The rated supply is 24 V DC, with a permissible range of 20.4 V to 28.8 V DC.
4. What should be verified before requesting a quote?
Verify the RS-422/485 interface, 9-pole D-sub connector, supported protocol, supply range, cable length, and installation dimensions.
