CB 1241 RS485 communication board
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6ES7241-1CH30-1XB0 – CB 1241 RS485 communication board is a CB 1241 communication board for SIMATIC S7-1200 controllers. It adds an RS485 interface to the CPU for serial communication with external devices.
The CB 1241 is installed directly in a compatible S7-1200 CPU and uses a terminal block connection. Distinguish the compact CB board from larger CM communication modules and verify support in the specific CPU version.
Manufacturer documentation and product information are available from Siemens Industry Mall. Related products in the POLRAD catalog: 6ES7341-1AH01-0AE0.
For service replacement, compare the complete catalog number and device parameters with the machine documentation. If you are unsure, send us the marking from the installed module and we can help verify the correct variant.
