We have a repeater with one of its outputs a series of 12 et200eco type 141-3BH00-0xa0 (each with 16 inputs) and one 142-3BH00-0xA00 (digital outputs) connected on a profibus with 142- 3BH00-0xA00 at last node with resistor terminator.

We face strange situation , outputs (142-3bh00- ) are ok with no problems, but inputs shows us random values . Now if we remove the resistor terminator , we have problem on cpu network, but inputs could be seen correctly. if we put back the terminator, we have good network but, bad inputs .

- I checked profibus shield, and connections, they seem to be OK..

Any suggestions??

Dear Sir;

Thank you your kind answer.

As you suggested, there was problem with addressing.

thanks