Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Module type | CM 1241 RS 422 / 485 |
| Product basis | 6ES7241-1CH32-0XB0 |
| Interface | RS 422 / 485 (X.27) |
| Number of interfaces | 1 |
| Connector | 9-pole D-sub (pin) |
| Rated supply voltage | 24 V DC |
| Permissible supply range | 20.4 V to 28.8 V DC |
| Maximum current consumption | 220 mA; from backplane bus 5 V DC |
| Protocols | Freeport, ASCII, Modbus RTU master, Modbus RTU device, USS |
| Protection | IP20 |
Applications
- Freeport communication: Supports Freeport communication with configurable character, stop-bit and parity parameters.
- ASCII communication: Supports ASCII communication as a library function.
- Modbus RTU communication: Supports Modbus RTU master and Modbus RTU device communication, including diagnostics for the Modbus RTU device.
- USS communication: Supports USS communication as a library function.
Key Features
- RS-422/485 communications interface: 1 RS 422 / 485 (X.27) interface with a 9-pole D-sub connector.
- Protocol support: Supports Freeport, ASCII, Modbus RTU master, Modbus RTU device and USS; ASCII and USS are available as library functions.
- Supply and consumption: Rated supply voltage: 24 V DC; permissible range: 20.4 V to 28.8 V DC. Maximum current consumption: 220 mA from the backplane bus at 5 V DC.
- Freeport communication parameters: Maximum telegram length: 1 kbyte; 7 or 8 bits per character; 1 standard or 2 stop bits; configurable parity options.
- Mounting and protection: Dimensions: 30 mm width, 100 mm height and 75 mm depth. IP20 degree of protection; horizontal installation supports -25 °C to 60 °C, with +70 °C for 10 minutes under OT1, ST1/ST2 conditions.
- SIPLUS construction: Conformal coating is provided for high reliability, with Class 2 coating according to EN 61086 and Type 1 protection according to EN 60664-3.
Frequently Asked Questions
1. What interface does the Siemens 6AG2241-1CH32-1XB0 have?
It has 1 RS 422 / 485 (X.27) interface with a 9-pole D-sub connector.
2. Which communication protocols does this module support?
It supports Freeport, ASCII, Modbus RTU master, Modbus RTU device and USS. ASCII and USS are available as library functions.
3. What supply voltage does the module require?
The rated supply voltage is 24 V DC, with a permissible range of 20.4 V to 28.8 V DC.
4. What mounting temperature limits should be verified?
For horizontal installation, the range is -25 °C to 60 °C, with +70 °C for 10 minutes under OT1, ST1/ST2 conditions. For vertical installation, the range is -25 °C to 50 °C.
