I've Siemens PLC S7-300 include ethernet communication module (PLC vacuum control from http://www.ibs-ppg.com) and have been connected to ethernet card module Yokogawa by ethernet cable.
But I don't know how to sharing data connection (analog indication) from PLC to DCS. I only know programming on DCS side.
If you know something how to solve my problem please help me. Pls PM me if you want to check my PLC program.
Or if anyone have sample ethernet communication program,
please let me know.
Thanks.

