Resolution Values; Offset/Polarity Values - Carrier Zone Ctrl II Installation And Startup Manual

Resolution values

Resolution is not particular to a type of input or output, but the driver handles analog and digital (binary) inputs
and outputs differently. To set these values appropriately, you should understand how the driver uses them.
Resolution
Analog Input (BAI)
Analog Output
(BAO)
Digital (Binary)
Inputs
and Outputs

Offset/Polarity values

Offset/Polarity is not particular to a type of input or output, but the driver handles analog and digital (binary)
inputs and outputs differently. To set these values appropriately, you should understand how the driver uses
them.
Offset/Polarity
Analog Input (BAI)
Analog Output (BAO) You can use the Offset value (positive or negative) to calibrate an output, but you generally
Digital (Binary)
Input (BBI)
Digital (Binary)
Output (BBO)
Zone Ctrl II and
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Notes
The driver truncates the microblock's present value according to the resolution.
EXAMPLE If the calculated present value is 13.789 and you set the Resolution to 0.1, the
control program uses 13.7 for any calculations downstream from the microblock.
The driver truncates the wire input value to the microblock before performing any scaling
calculations.
EXAMPLE If the wire input value is 13.789 and you set the Resolution to 0.1, the
microblock uses 13.7 for any scaling calculations.
N/A
Notes
Offset value (positive or negative) adds a fine adjustment to a sensor reading after all
scaling for calibration.
EXAMPLE If a sensor reads 74.9°F when the actual measured value is 73.6°F, enter an
Offset of –1.3 to calibrate the sensor to the measured value.
do not need to. If used, the driver adds the offset value to the wire input value before
performing any scaling calculations to determine the Zone Ctrl II's output.
Polarity determines the microblock's present value when no signal is received from the
equipment.
When no signal is received from the equipment, if Polarity is set to:
normal—present value is off
reversed—present value is on
Polarity determines the Zone Ctrl II's output based on the control program's signal to the
microblock.
When the control program's signal to the microblock is on, if Polarity is set to:
normal—output is on
reversed—output is off
NOTE Regardless of Polarity, the output will be off if the Zone Ctrl II loses power.
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To assign inputs or outputs to points
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