Product information
Overview
Key Features
- RS 422/485 communication: The CM 1241 has 1 RS 422/485 (X.27) interface with a 9-pole D-sub socket.
- Protocol support: Freeport, ASCII, Modbus RTU master, Modbus RTU device and USS are supported; ASCII and USS are available as library functions.
- 24 V DC supply: Rated supply voltage is 24 V DC, with a permissible range from 20.4 V DC to 28.8 V DC.
- Freeport parameters: Maximum telegram length is 1 kbyte; character length is 7 or 8 bits, with 1 (Standard) or 2 stop bits.
- Protection and diagnostics: The module has IP20 protection, a diagnostics function and a diagnostics indication LED for output status.
Technical Summary
| Product type | CM 1241 RS 422 / 485 |
|---|---|
| Interface | RS 422 / 485 (X.27), 1 interface |
| Supply voltage, rated | 24 V DC |
| Permissible supply voltage | 20.4 V DC to 28.8 V DC |
| Current consumption, max. | 220 mA; From backplane bus 5 V DC |
| Supported protocol drivers | Freeport; ASCII; Modbus RTU master; Modbus RTU device; USS |
| Protection | IP20 |
Frequently Asked Questions
What is the exact Siemens model and interface type?
The exact model is 6ES7241-1CH32-0XB0, a CM 1241 RS 422 / 485 communication module with 1 RS 422/485 (X.27) interface.
What supply voltage does the CM 1241 require?
The rated supply voltage is 24 V DC. The permissible range is from 20.4 V DC to 28.8 V DC.
Which protocols are supported?
The module supports Freeport, ASCII, Modbus RTU master, Modbus RTU device and USS. ASCII and USS are available as library functions.
What quantity and destination should be included in a quotation request?
Include the required quantity and destination so the exact 6ES7241-1CH32-0XB0 requirement can be reviewed.
