Key Features
- Communication module type: CM 1241 RS 422 / 485
- Interface: RS 422 / 485 (X.27) with 1 interface
- Protocol support: Freeport, ASCII, Modbus RTU master, Modbus RTU device, and USS
- Supply voltage: Rated value (DC): 24 V; permissible range: 20.4 V to 28.8 V
- Installation and connection: 9-pole D-sub (pin) connection and cable length, max. 1 000 m
Applications
- Serial communication over RS 422 / 485: For connecting equipment through the RS 422 / 485 interface.
- Modbus RTU communication: For Modbus RTU master and Modbus RTU device communication.
Technical Summary
| Product type designation | CM 1241 RS 422 / 485 |
|---|---|
| based on | 6ES7241-1CH32-0XB0 |
| Rated value (DC) | 24 V |
| Permissible supply voltage, lower limit (DC) | 20.4 V |
| Permissible supply voltage, upper limit (DC) | 28.8 V |
| Current consumption, max. | 220 mA; From backplane bus 5 V DC |
| Power loss, typ. | 1.1 W |
| Interfaces/bus type | RS 422 / 485 (X.27) |
| Number of interfaces | 1 |
| IP degree of protection | IP20 |
Frequently Asked Questions
What is Siemens 6AG1241-1CH32-2XB0?
It is a SIPLUS S7-1200 CM 1241 communication module with RS 422 / 485 interface.
Which interfaces and protocol functions does this module provide?
It provides 1 RS 422 / 485 interface (X.27) and supports Freeport, ASCII, Modbus RTU master, Modbus RTU device, and USS.
What are the supply voltage requirements for 6AG1241-1CH32-2XB0?
Rated value (DC) is 24 V, with a permissible range from 20.4 V to 28.8 V.
What connection and cable details are given for this communication module?
It uses a 9-pole D-sub (pin) connection, and the maximum cable length is 1 000 m.
What should be checked when selecting this module for an installation?
Check the RS 422 / 485 interface, the 24 V DC supply range, the 9-pole D-sub (pin) connection, and the IP20 protection level.
