Sequence Of Operation:
Initially the A/M Overrides are shown in the 'Auto' mode, where the signal out is equal to the signal in. (A random signal generator is simulating the signal in value.)
The signals are being published at the field device, whereby SCADA is subscribing to the values.
Three(3) values are monitored: 1.) Auto or Manual selection. 2.) Control signal in value. 3.) Control signal out value. Either the Field Device A/M override or the SCADA A/M override can function to adjust the signal out value. Select either 'Manual' button, then move the associated slider to override the signal out value. Note: The A/M override includes bumpless transfer, where the signal out matches the signal in during A/M selection. |
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