Product Overview
Technical Summary
| Product type designation | CB 1241 RS 485 |
|---|---|
| Communication interface | RS485 |
| Connection | Terminal block |
| Freeport support | Yes |
| Input current from backplane bus 5 V DC, typ. | 50 mA |
| Power loss, typ. | 1.5 W |
| IP degree of protection | IP20 |
Key Features
- Product designation: CB 1241 RS 485 communication board for SIMATIC S7-1200.
- Communication protocols: Supports Freeport, ASCII as a library function, Modbus RTU master, Modbus RTU device, and USS as a library function.
- Connection and cable length: Point-to-point cable length: max. 1 000 m.
- Electrical characteristics: Input current from backplane bus 5 V DC, typ.: 50 mA; power loss, typ.: 1.5 W.
- Protection and diagnostics: IP degree of protection: IP20; diagnostics function: Yes.
Frequently Asked Questions
What does Siemens order number 6ES7241-1CH30-1XB0 identify?
It identifies a SIMATIC S7-1200 Communication Board CB 1241 for RS485 communication, with a terminal block and Freeport support.
Which specifications should be checked when verifying this MLFB?
Check the CB 1241 RS 485 designation, RS485 interface, terminal block, supported protocols, 1 000 m maximum point-to-point cable length, and IP20 protection.
What details are needed for a quotation?
Provide the complete order number 6ES7241-1CH30-1XB0, required quantity, and destination.
