Watlow D4T Data Logger
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Chapter 5 Function Reference
Signals
Direction
Label
Type
Function
Receivers
- - - - Digital
Input to logic function
- - - - Digital
Input to logic function
- - - - Digital
Input to logic function
- - - - Digital
Input to logic function
- - - - Digital
Input to logic function
- - - - Digital
Input to logic function
- - - - Digital
Input to logic function
- - - - Digital
Input to logic function
Transmitter - - - - Digital
True when each connected input has the same value, oth-
erwise false
Function
To detect when all the inputs have the same value, set Function to
Equal To
.
Error Handling
Use Error Handling to select the output's value and error status when the function cannot de-
finitively determine the result.
Options:
• True Good
: output's value is true (on) with no error
• True Bad
: output's value is true (on) and has an error
• False Good
: output's value is false (off) with no error
• False Bad
: output's value is false (off) and has an error
Not Equal To
If all the inputs are false (off, 0%) or all the inputs are true
(on, 100%), the output is false (off, 0%). Otherwise, the output
is true (on, 100%).
Only connected inputs are considered by the logic operation;
inputs that are not connected are ignored. The truth table at
the right illustrates the outcomes for three inputs.
Inputs
Output
FFF
F
FFT
T
FTF
T
FTT
T
TFF
T
TFT
T
TTF
T
TTT
F
F = False (0%, off)
T = True (100%, on)
