Digital input card collects field switch signals for Ovation distributed control system. ...

Digital input card gathers field switch signals for Ovation distributed control system. ...

Digital output card sends control signals to field devices in Ovation DCS rack ...

Analog input card collects 4-20mA field signals for Ovation DCS system ...

Analog input card collects 4-20mA field signals for Ovation DCS system ...

Core control card executing logic operation for Ovation distributed control system ...