Micromod MOD: 30ML Operation and Template Setup User Manual

Page 41

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MOD 30ML Multiloop Controller

OPERATION

3-9

3.8

SELECTING A CONTROL LOOP FOR DISPLAY

The instrument can contain as many as eight control loops. Each loop is identified by a
user configured tag name. The data displayed on the front panel applies only to the loop
which is identified by the tag name shown on the Line 1 Display.

Press the TAG key to switch the display from one loop to another. Pressing the key
repeatedly while in any runtime display steps the display through the configured loops.
Holding down the TAG key exits the runtime display and accesses the device displays.
On the last loop display, pressing the TAG key wraps back to the first loop allowing the
sequence to be repeated. An example of a runtime display for two different loops is
shown below.

Tag name indicates that this front panel display applies
to flow control loop FIC-211.

Current process flow rate.

Loop is operating in automatic.

Set-point is from a remote source.

Current value of remote set-point value is being
displayed on Line 6 (bottom line).

∇/∆ arrow keys are disabled because remote set-
point is not adjustable from the front panel.


Press and release the TAG key to display the next
configured loop.

New name appears indicating that this front panel
display applies to a temperature control loop TIC-689.

Current process temperature.

Loop is operating in manual.

Set-point is local [LOC] could be tracking [TRK].

Current value of output in percent is being displayed on
Line 6.

∇/∆ arrow keys adjust output in manual.

3.9

SINGLE LOOP OPERATION IN AUTOMATIC MODE

This section describes operations for a single control loop with local set-point, remote set-
point, and remote set-point with ratio and bias while the controller is in the automatic mode.

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