Simple Valve Faceplate

Valve Head

Valve Symbol associated with the selected equipment.

Mode buttons

Mode buttons are green when a mode is active, and grey when inactive. When the CtrlMode tag associated with the equipment is 0, the mode is Auto. When the tag is 1, the mode is Manual. This tag applies to Auto and Manual buttons.

The Mode button displays two symbols:

• The circle in the top-left corner indicates that a command has been sent to the linked PLC. This indicator is not visible otherwise.

• The rectangle in the top-right corner indicates that the current mode is the normal mode of operation for the equipment. Displayed on the Auto/Manual buttons, the rectangle depends on ‘CtrlModeDef’

The following Mode Buttons are available:

CtrlMode, CtrlModeDef (see Valves)

AutoCmd

ManCmd

• Auto: Automatic mode

CtrlMode, CtrlModeDef (see Valves)

AutoCmd

• Manual: Manual mode

CtrlMode, CtrlModeDef (see Valves)

ManCmd

• Open: Open mode - This is a toggle button that toggles the "OpenCmd". The Open button is active (green) when ‘OpenCmd’ tag is 1. The button is disabled when the valve is in AUTO mode or the valve has an interlock/shutdown condition preventing the valve from being operated.

OpenCmd

• Close: Close mode - This is a toggle button that toggles the "CloseCmd". The Close button is active (green) when ‘Closedmd’ tag is 1. The button is disabled when the valve is in AUTO mode or the valve has an interlock/shutdown condition preventing the valve from being closed.

CloseCmd

Mode Indicators

Local, Manual, Auto and Cascade Mode.

Local - Local Mode – field or MCC control only.

Manual - Manual Mode - start/stop or valve position set by control room operator

Auto Mode - start/stop and valve position set by control system, control operator sets Setpoint target.

Cascade mode – control system sets setpoint target from another loop/logic.

CtrlMode, CtrlModeDef (see Valves)

Equipment Status Indicator

Displays if there is an abnormal status condition e.g. bad comms (stop IO server).

EqStatus (see Status Indicators)

Output Tracker

Blue line on output bar. The position of the output tracker is based on the ‘OPTrack’ tag and visible when ‘TrackDsp’ tag is 1.

OPTrack (see Valves)

TrackDsp