dear friends,
these are my questions:

1.in order to what specification you have seen in your microplc,you have used the special fieldbus?

2.how did you choosed the best fieldbus for your microplc?

REGARD's
maryam.

 

your questions are not so clear.Field bus is used to perform control algorithms in field instruments and communicate with host through digital signals. microplc should have field bus interface.