Connecting S7-300 PLCs to an ABS (Anti lock Brake System) ECU


Thread Starter


Hi everybody,

I should communicate with an ABS brake ECU (Electronic Control Unit) system via a S7-300 PLC to send ABS valve open and close commands for testing brake unit and other purpose.

ECU communication based on an standard protocol named "KWP2000". Also the physical communication based on a form of CAN named "K-Line".

Can somebody help me to find best way to connect ECUs to S7-300 PLCs and writing the required communication protocol?

Many thanks before for your help.

Best Regards,

Mr. Uddhav Nikam

hi babak
i am also searching for same thing,
i come to know that some kind of communication unit( may be microprocessor based DLC) is used to communicate between PLC to ECU