Product Description
Key Features
- Exact product identity: SIMATIC S7-1200 G2 CB 1241 Communication Board; product type designation: CB 1241 RS 485.
- RS485 interface: 1 RS 485 interface with a maximum transmission rate of 250 kbit/s.
- Push-in terminal connection: The supplied configuration includes a push-in terminal block.
- Protocol drivers: Freeport, ASCII, Modbus RTU master, Modbus RTU device, and USS are supported; ASCII and USS are available as library functions.
- Communication capacity: Maximum point-to-point cable length is 1 000 m; Freeport telegram length is maximum 4 kbyte.
- Lifecycle and physical data: Lifecycle: Active Product. Packaging dimensions are 83.00 x 36.00 x 80.00 mm; net weight is 0.043 kg.
Applications
- RS485 serial communication: The board provides RS 485 communication with Freeport, ASCII, Modbus RTU master, Modbus RTU device, and USS protocol drivers.
Technical Summary
| Product type designation | CB 1241 RS 485 |
|---|---|
| Interface | RS 485 |
| Number of interfaces | 1 |
| Transmission rate, max. | 250 kbit/s |
| Protocol drivers | Freeport; ASCII; Modbus RTU master; Modbus RTU device; USS |
| Input current from backplane bus 5 V DC, typ. | 75 mA |
| Power loss, typ. | 0.4 W |
| Connection | Push-in terminal block |
| IP degree of protection | IP20 |
| Product lifecycle | Active Product |
Frequently Asked Questions
What order number identifies this communication board?
The exact order number is 6ES7241-1CA50-0XB0, with product type designation CB 1241 RS 485.
Which interface and transmission rate does it have?
It has 1 RS 485 interface with a maximum transmission rate of 250 kbit/s.
Which protocol drivers are supported?
It supports Freeport, ASCII, Modbus RTU master, Modbus RTU device, and USS. ASCII and USS are available as library functions.
What connection is included in the supplied configuration?
It includes a push-in terminal block.
