Honeywell VRX180 User Manual

Page 132

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Programming Function Blocks and Features

Video Recorder – User Manual

118

Table 4-26 Logic Operators

For this operator

Definition

if this is true

then Result is

AND

If all programmed inputs are ON,
Result is ON.

All programmed inputs are
ON(1)

ON(1)

OR

If at least 1 programmed input is ON,
Result is ON.

At least 1 programmed
input is ON(1)

ON(1)

XOR

Uses Inputs A and B only.

Input A is ON(1) and Input
B is OFF(0).

ON(1)

If one and only one input is ON, Result
is ON.

Input A is OFF(0) and Input
B is ON (1).

ON(1)

RESET/SET FF

Rising edge of Input A turns Result
ON.

Input A is ON(1).

ON(1)

(Reset/Set Flip-Flop)

Rising edge of Input B resets Result.

Input A is OFF(0) and Input
B is ON (1).

OFF(0)

Reset/Set FF

Input A

Input B

Result

TOGGLE/FF

Toggle Flip-Flop. Rising edge of Input
A inverts Result

Input A changes from
OFF(0) to ON(1) (rising
edge)

ON(1) if it was
OFF(0), or OFF(0)
if it was ON(1).

Input A changes from
ON(1) to OFF(0) (falling
edge)

unchanged

Input A

Toggle/Flip-Flop

Result

ONE SHOT

Rising edge of Input A turns Result
ON for one machine scan cycle.

Input A is ON(1) for any
length of time

ON(1) for 1 scan
cycle of the
instrument, then
OFF(0)

Result

Input A

One Shot

PASS

Passes Input A’s state unchanged to
CONDITION TYPE.

Input A changes state

same as Input A

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