Technical Summary
| Product type designation | CM 1241 RS 422 / 485 |
|---|---|
| Product lifecycle | Active Product |
| Interfaces/bus type | RS 422 / 485 (X.27) |
| Number of interfaces | 1 |
| Freeport | Yes |
| Modbus RTU master | Yes |
| Modbus RTU device | Yes |
| ASCII | Yes; Available as library function |
| Supply voltage, rated value (DC) | 24 V |
| Supply voltage, permissible range, lower limit (DC) | 20.4 V |
| Supply voltage, permissible range, upper limit (DC) | 28.8 V |
| IP degree of protection | IP20 |
Applications
Connects a SIMATIC S7-1200 system to an RS 422 / 485 serial link.
Supports Modbus RTU master and Modbus RTU device communication on a serial network segment.
Key Features
Communication module for the SIMATIC S7-1200 family.
Provides 1 interface with RS 422 / 485 (X.27).
Supports Freeport communication.
Uses a 9-pole D-sub (socket) connection.
Product lifecycle: Active Product.
Frequently Asked Questions
What is Siemens 6ES7241-1CH32-0XB0?
It is a SIMATIC S7-1200 communication module, CM 1241 RS 422 / 485.
Which interface does 6ES7241-1CH32-0XB0 use?
It uses 1 RS 422 / 485 interface (X.27).
Does the CM 1241 support Modbus RTU?
Yes. It supports Modbus RTU master and Modbus RTU device.
What is the supply voltage for the module?
Rated value (DC): 24 V. Permissible range (DC): 20.4 V to 28.8 V.
What connector does this communication module use?
It uses a 9-pole D-sub (socket) connector.
