Contains a typical for digital Fail Close Valves with 1 solenoid and 2 limit switches. The valve closes if it is tripped or a command to close is set on it. Can receive manual operations like opening and closing the valve from a button(on the HMI).

This module monitors the state of the FCV and provides alarms based on the status read by the open and close limit switches.

On/Off valve with a single output and both opened and closed. It also can be used without feedback - in that case ignore fail to open/close variable at the output. feedback. Applies to all pneumatic on/off valves with both opened and closed position feedback.