Watlow D4T Data Logger
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Chapter 5 Function Reference
Differential
This function calculates input X minus input Y. A filter and offset may be applied to the calcu-
lated value. The output has the units of input X.
Signals
Direction
Label
Type
Function
Receivers
X
Analog
Value from which Y is subtracted
Y
Analog
Value subtracted from X
Transmitter - - - - Analog
The filtered result of the calculation (X – Y) plus the offset
Function
To subtract one input from another, set Function to
Differential
.
Offset
Adjustment added to the result of the calculation.
Range: -99,999.000 to 99,999.000
Filter
Set the amount of filtering to apply. Filtering smooths signal fluctuations. Increase the time to
increase filtering. Excessive filtering slows the function’s response.
Range: 0.0 to 60.0 seconds
Ratio
This function calculates the quotient, input X divided by input Y. A filter and offset may be
applied to the calculated value. If both inputs have the same units, the output has no units,
otherwise the output has the units of input X.
Signals
Direction
Label
Type
Function
Receivers
X
Analog
Value divided by Y (numerator)
Y
Analog
Value by which X is divided (denominator)
Transmitter - - - - Analog
The filtered result of the calculation (X ÷ Y) plus the offset
Function
To divide one input by another, set Function to
Ratio
.
Offset
Adjustment added to the result of the calculation.
Range: -99,999.000 to 99,999.000
Filter
Set the amount of filtering to apply. Filtering smooths signal fluctuations. Increase the time to
increase filtering. Excessive filtering slows the function’s response.
Range: 0.0 to 60.0 seconds