Table 4-26 Logic Operators - Honeywell VPR100 User Manual

Programming Function Blocks and Features
For this operator Definition
AND If all programmed inputs are ON,
Result is ON.
OR If at least 1 programmed input is ON,
Result is ON.
XOR Uses Inputs A and B only.
If one and only one input is ON, Result
is ON.
RESET/SET FF Rising edge of Input A turns Result
ON.
(Reset/Set Flip-Flop) Rising edge of Input B resets Result.
TOGGLE/FF Toggle Flip-Flop. Rising edge of Input
A inverts Result
ONE SHOT Rising edge of Input A turns Result ON
for one machine scan cycle.
PASS Passes Input A's state unchanged to
CONDITION TYPE.
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Table 4-26 Logic Operators

Reset/Set FF
Input A
Input B
Result
Toggle/Flip-Flop
Input A
Result
One Shot
Input A
Result
VPR & VRX – User Manual
if this is true
All programmed inputs are
ON(1)
At least 1 programmed
input is ON(1)
Input A is ON(1) and Input
B is OFF(0).
Input A is OFF(0) and Input
B is ON (1).
Input A is ON(1).
Input A is OFF(0) and Input
B is ON (1).
Input A changes from
OFF(0) to ON(1) (rising
edge)
Input A changes from
ON(1) to OFF(0) (falling
edge)
Input A is ON(1) for any
length of time
Input A changes state
then Result is
ON(1)
ON(1)
ON(1)
ON(1)
ON(1)
OFF(0)
ON(1) if it was
OFF(0), or OFF(0)
if it was ON(1).
unchanged
ON(1) for 1 scan
cycle of the
instrument, then
OFF(0)
same as Input A
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