Valves

To add a valve drag the motorised valve icon from the device palette.

This will bring up the device properties window for the valve.

Specify the field as follows:

Field	Description
Valve Status	This is the status of the valve (see Valve Positions below).
Open	The 'Flow Computer Field' is the field that Acquire will write to in the flow computer or PLC when the 'Open' button is clicked. The 'Value' field is the value to write to the selected field when the 'Open' button is clicked. eg. selecting field "Scratchpad One-shot (2Sec) Point #01" with value "1" will cause Acquire to write a "1" into the field when the valve's 'Open' button is pressed.
Close	The 'Flow Computer Field' is the field that Acquire will write to in the flow computer or PLC when the 'Close' button is clicked. The 'Value' field is the value to write to the selected field when the 'Close' button is clicked. eg. selecting field "Scratchpad One-shot (2Sec) Point #02" with value "1" will cause Acquire to write a "1" into the field when the valve's 'Close' button is pressed.

Note: The valve control buttons will not be initiated until the P&ID is saved.

Valve Positions

The icon displayed on the P&ID is based on a status value from the flow computer/ PLC.