Key Features
- CB 1241 RS 485 communication board: Product type designation: CB 1241 RS 485.
- Based on 6ES7241-1CH30-1XB0: The board is based on 6ES7241-1CH30-1XB0.
- Freeport support: Integrated protocol driver for Freeport: Yes.
- Modbus RTU master and device: Integrated protocol driver for Modbus RTU master and Modbus RTU device: Yes.
- Conformal coating: Coatings for printed circuit board assemblies acc. to EN 61086: Yes; Class 2 for high reliability.
- IP20 protection: IP degree of protection: IP20.
Technical Summary
| Product type designation | CB 1241 RS 485 |
|---|---|
| Based on | 6ES7241-1CH30-1XB0 |
| Freeport support | Yes |
| ASCII support | Yes; Available as library function |
| Modbus RTU master | Yes |
| Modbus RTU device | Yes |
| Input current from backplane bus 5 V DC, typ. | 50 mA |
| Power loss, typ. | 1.5 W |
| IP degree of protection | IP20 |
| Ambient temperature during operation | -40 °C; = Tmin (incl. condensation/frost); start-up @ -25 °C |
Applications
- RS-485 device communication: Used for communication over RS-485 with Freeport, ASCII, and Modbus RTU links.
Frequently Asked Questions
What is the exact Siemens model and product type?
The exact model is 6AG1241-1CH30-5XB1, and the product type designation is CB 1241 RS 485.
Does 6AG1241-1CH30-5XB1 support Modbus RTU?
Yes. It supports Modbus RTU master and Modbus RTU device.
What communication functions are available on this CB 1241 RS 485 board?
It supports Freeport, ASCII, Modbus RTU master, and Modbus RTU device.
What are the key electrical and connection details for this module?
Input current from backplane bus 5 V DC, typ.: 50 mA. Power loss, typ.: 1.5 W. Cable length, max.: 1 000 m.
