Key Features
- RS-232 communications module: Product type designation: CM 1241 RS 232.
- 1 interface: Interfaces/bus type: RS 232C (V.24); number of interfaces: 1.
- Freeport support: Integrated protocol driver: Freeport, Yes.
- Modbus RTU master and device: Integrated protocol driver: Modbus RTU master, Yes; Modbus RTU device, Yes.
- 24 V DC supply: Rated value (DC): 24 V; permissible range: 20.4 V to 28.8 V.
- Diagnostics and isolation: Diagnostics function: Yes; isolation tested with 750 V DC (type test) and according to EN 50155 (routine test).
Applications
- RS-232 point-to-point connection: Use for connecting a device or system through the RS-232C (V.24) interface over a point-to-point cable up to 10 m.
- Modbus RTU communication: Use for Modbus RTU master or Modbus RTU device communication.
Technical Summary
| Product type designation | CM 1241 RS 232 |
|---|---|
| Based on | 6ES7241-1AH32-0XB0 |
| Rated value (DC) | 24 V |
| Permissible range, lower limit (DC) | 20.4 V |
| Permissible range, upper limit (DC) | 28.8 V |
| Interfaces/bus type | RS 232C (V.24) |
| Number of interfaces | 1 |
| Integrated protocol driver – Freeport | Yes |
| Integrated protocol driver – Modbus RTU master | Yes |
| Integrated protocol driver – Modbus RTU device | Yes |
| Power loss, typ. | 1.1 W |
Frequently Asked Questions
What is Siemens 6AG2241-1AH32-1XB0?
It is a SIPLUS S7-1200 CM 1241 RS232 T1 rail communications module.
Which interface does this module provide?
It provides 1 RS 232C (V.24) interface.
What supply voltage does the module require?
Rated value (DC) is 24 V, with a permissible range from 20.4 V to 28.8 V.
Which protocol drivers are supported?
Integrated protocol drivers include Freeport, Modbus RTU master, and Modbus RTU device.
What is the maximum cable length for the point-to-point connection?
The maximum cable length is 10 m.
