Hi experts,
I have a question regarding the intention behind diagnostic GIO1A and GIO1B mentioned in the Safety Manual.
In our project we already check for shorts on Power-On and check the voltage at output pins periodically for faults with adcs.
If the intentiion of the diagnostic is just to check, if the outputs are in the right state, then we wouldn't need to also check DOUT vs DIN, because we check the state of the pin externaly. It would only increase the load on the processor without contributing much to the safety of the controller.
So, is the intention of the diagnostic just to check if the output is in the desired state or is there another reason why we should implement the readback of DOUT and DIN additionaly to checking, if the voltage at the output pins reflects the desired state of the pins?
Thank you and best regards,
Max
