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4.3.2 Configuration: Inputs
The Inputs screen is for configuring Analog, Modbus, Digital, and Ambient Temperature signals for the
controller.
4.3.2.1 Configuration: Inputs: Analog
Analog inputs 1 through 3 are factory set to match the full scale ranges of the DP transmitter, stack
temperature transmitter, and stack pressure transmitters. They will rarely be adjusted, but if needed
they can be changed here. Minimum Engineering units is the value that corresponds to 4mA, Full scale
corresponds to 20mA. The user can enable low or high value alarms if desired.
Analog input 4 can be used by the user to pass through a signal such as steam load or megawatt load.
This is done by providing a 4-20mA signal to terminal block TBAI (see Wiring and Interconnect Diagram).
Click "add new Analog input" and follow prompts to specify a name and engineering units. It will then be
an available option on the list of Analog inputs; click the link and configure as desired. Once it is
configured remember to write the configuration to the controller using the Administrator screen. Once
January, 2018
Page 24
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