Technical Summary
| Product type designation | CB 1241 RS 485 |
|---|---|
| Based on | 6ES7241-1CH30-1XB0 |
| Interface | RS-485 |
| Conformal coating | Yes; Class 2 for high reliability |
| Operating temperature min. | -40 °C; = Tmin (incl. condensation/frost); start-up @ -25 °C |
| Operating temperature max. | 60 °C; = Tmax |
| Freeport | Yes |
| Modbus RTU master | Yes |
| Modbus RTU device | Yes |
| Power loss, typ. | 1.5 W |
| IP degree of protection | IP20 |
Applications
Serial data communication over RS-485 using Freeport or ASCII.
Communication with Modbus RTU master or device networks over the RS-485 interface.
Key Features
CB 1241 RS 485 for the S7-1200 family.
Coatings for printed circuit board assemblies acc. to EN 61086, Class 2 for high reliability.
Supports Freeport, ASCII, and Modbus RTU master/device functions over RS-485.
Operating temperature from -40 °C to 60 °C, with start-up at -25 °C.
Supplied with a terminal block.
Product lifecycle: Active Product.
Frequently Asked Questions
What is Siemens 6AG1241-1CH30-5XB1?
It is a SIPLUS S7-1200 CB 1241 RS-485 communication board.
Which protocols does 6AG1241-1CH30-5XB1 support?
It supports Freeport, ASCII, Modbus RTU master, and Modbus RTU device.
What are the operating temperature limits for this CB 1241 board?
The operating temperature is -40 °C to 60 °C, with start-up at -25 °C.
What is the maximum cable length for point-to-point connection?
The maximum point-to-point cable length is 1 000 m.
