Hi All,
This is regarding a problem with modicon plc ( CPU 434 12A, 486 controller). feedbacks (open&close) of one of the valve is connected to plc as a digital input. we stroke checked valve and also checked feedbacks manualy. field side was ok. but in dcs if valve is open , we are getting closed feedback. we are suspecting problem between plc side and dcs communication. can anybody tell which module is communicating to dcs. ( CRP 932 00 RIO Head Module ?? ) and how to check...
Thanks & Regards
Darwish
This is regarding a problem with modicon plc ( CPU 434 12A, 486 controller). feedbacks (open&close) of one of the valve is connected to plc as a digital input. we stroke checked valve and also checked feedbacks manualy. field side was ok. but in dcs if valve is open , we are getting closed feedback. we are suspecting problem between plc side and dcs communication. can anybody tell which module is communicating to dcs. ( CRP 932 00 RIO Head Module ?? ) and how to check...
Thanks & Regards
Darwish