Product Description
Key Features
- Product identity: CB 1241 RS-485 communication board, based on 6ES7241-1CH30-1XB0.
- Serial protocols: Supports Freeport, ASCII, Modbus RTU master, Modbus RTU device and USS; ASCII and USS are available as library functions.
- Environmental range: Ambient temperature during operation: -40 °C to 60 °C; start-up at -25 °C. Storage/transportation: -40 °C to 70 °C.
- Conformal coating: Conformal coating for printed circuit board assemblies according to EN 61086, Class 2 for high reliability; protection against fouling according to EN 60664-3, Type 1.
- Connection and protection: Terminal-block connection, cable length max. 1 000 m, and IP20 degree of protection.
- Dimensions and weight: 38 mm width, 62 mm height, 21 mm depth, and approx. 40 g weight.
Applications
- Freeport serial communication: Supports Freeport serial communication.
- ASCII communication: Supports ASCII communication as an available library function.
- Modbus RTU communication: Supports Modbus RTU master and Modbus RTU device operation.
Technical Summary
| Product type | CB 1241 RS-485 |
|---|---|
| Order number | 6AG1241-1CH30-5XB1 |
| Based on | 6ES7241-1CH30-1XB0 |
| Protocols | Freeport; ASCII; Modbus RTU master; Modbus RTU device; USS |
| 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 to 60 °C; start-up at -25 °C |
Frequently Asked Questions
Which exact model should be confirmed for this communication board?
Confirm Siemens SIPLUS 6AG1241-1CH30-5XB1, product type CB 1241 RS-485, based on 6ES7241-1CH30-1XB0.
Which serial protocols does the CB 1241 support?
It supports Freeport, ASCII, Modbus RTU master, Modbus RTU device and USS. ASCII and USS are available as library functions.
What connection and cable length are specified?
It has a terminal-block connection and a maximum cable length of 1 000 m.
What environmental range should be checked?
The operating ambient temperature is -40 °C to 60 °C, with start-up at -25 °C. Storage/transportation is -40 °C to 70 °C.
