Product Overview
Technical Summary
| Product designation | CM 1241 RS 422 / 485 |
|---|---|
| Base product | 6ES7241-1CH32-0XB0 |
| Supply voltage | 24 V DC rated; 20.4 V to 28.8 V DC permissible |
| Interface | 1 × RS 422 / 485 (X.27) |
| Connection | 9-pole D-sub (pin) |
| Protocol drivers | Freeport, ASCII, Modbus RTU master, Modbus RTU device, USS |
| Protection | IP20 |
| Operating temperature | -25 °C to 60 °C horizontal; -25 °C to 50 °C vertical; +70 °C for 10 minutes under OT1, ST1/ST2 according to EN 50155 |
| Coating | Conformal coating, Class 2 for high reliability according to EN 61086 |
Key Features
- Product designation: CM 1241 RS 422 / 485 communications module for SIPLUS S7-1200.
- Variant configuration: Based on 6ES7241-1CH32-0XB0, with conformal coating and a 9-pole D-sub (pin) connection.
- Supply voltage: Rated value: 24 V DC; permissible range: 20.4 V to 28.8 V DC.
- Interfaces and protocols: 1 RS 422 / 485 (X.27) interface; supports Freeport, ASCII, Modbus RTU master, Modbus RTU device, and USS.
- Operating temperature: Horizontal installation: -25 °C to 60 °C; +70 °C for 10 minutes under OT1, ST1/ST2 according to EN 50155. Vertical installation: -25 °C to 50 °C.
- Protection and mounting: IP20 protection; horizontal mounting position applies to EN 50155 railway operation.
Applications
- Railway applications: Supports EMC and railway application requirements according to EN 50121-3-2, EN 50121-4, EN 50124-1, EN 50125-1, EN 50125-2, EN 50125-3, EN 50155, and EN 61373.
- Stationary industrial systems: Supports use in stationary industrial systems with specified biological, chemical, and mechanical environmental classes according to EN 60721-3-3.
- Industrial process technology: Supports use in industrial process technology against chemically active substances according to EN 60654-4 and environmental conditions according to ANSI/ISA-71.04.
Frequently Asked Questions
What does Siemens order number 6AG2241-1CH32-1XB0 identify?
It identifies a SIPLUS S7-1200 CM 1241 RS-422/485 communications module based on 6ES7241-1CH32-0XB0.
Which specifications distinguish this MLFB variant?
The variant has conformal coating, a 9-pole D-sub (pin) connection, 24 V DC supply, 1 RS 422 / 485 interface, and Freeport, ASCII, Modbus RTU, and USS protocol support.
What code and nameplate details should be checked before inquiry?
Check the complete order number 6AG2241-1CH32-1XB0, the CM 1241 RS 422 / 485 designation, and the based-on code 6ES7241-1CH32-0XB0.
What information is needed for a quotation?
Provide the required quantity and destination together with the complete order number 6AG2241-1CH32-1XB0.
