Product Overview
Applications
Supports serial communication using Freeport, ASCII, Modbus RTU master, Modbus RTU device, and USS.
Technical Summary
| Product type | CM 1241 RS 422 / 485 |
|---|---|
| Rated supply voltage | 24 V DC |
| Permissible supply voltage | 20.4 V DC to 28.8 V DC |
| Interface | RS 422 / 485 (X.27), 1 interface |
| Connector | 9-pole D-sub socket |
| Protocol drivers | Freeport; ASCII; Modbus RTU master; Modbus RTU device; USS |
| Modbus RTU master device capacity | 247; maximum 32 devices per MODBUS network segment |
| Protection | IP20 |
Key Features
RS422/485 (X.27) with 1 interface and a 9-pole D-sub socket.
Rated supply: 24 V DC; permissible range: 20.4 V DC to 28.8 V DC.
Supports Freeport, ASCII, Modbus RTU master, Modbus RTU device, and USS; ASCII and USS are available as library functions.
Maximum telegram length: 1 kbyte; 7 or 8 bits per character; 1 or 2 stop bits.
Diagnostics function and output-status LED indication; IP20 degree of protection.
Frequently Asked Questions
What exact module is 6ES7241-1CH32-0XB0?
It is a Siemens SIMATIC S7-1200 CM 1241 communication module with RS422/485 and Freeport support.
What supply voltage does the module use?
The rated supply is 24 V DC, with a permissible range from 20.4 V DC to 28.8 V DC.
Which connector and interface are provided?
It has 1 RS 422 / 485 (X.27) interface with a 9-pole D-sub socket.
Which protocols does it support?
It supports Freeport, ASCII, Modbus RTU master, Modbus RTU device, and USS.
