Programmer (HHP) User guide

Chapter 9
Using Comparison Instructions
9–8
Use the GEQ instruction to test whether one value (source A) is greater than
or equal to another (source B). If the value at source A is greater than or
equal to the value of source B, the instruction is logically true. If the value at
source A is less than the value of source B, the instruction is logically false.
Source A must be a word address. Source B can be either a constant or word
address. Negative integers are stored in two’s complement form.
Entering the Instruction
HHP Display Mnemonic
Function
Code
Use This Instruction When the Input:
GEQ
LD GEQ 65 appears first on a rung or block
GEQ
AND GEQ 66
is placed in series with any previous input
instruction in the current rung or block
GEQ
OR GEQ 67
is placed in parallel with any previous in-
put instruction in the current rung or block
You enter the instruction from within the program monitor functional area.
The example below shows how to enter the LD GEQ instruction. Use the
same procedure to enter the other GEQ instructions, only substitute the
function code with one from the table above.
P
0 0 0 G E Q S R C A
N 1 1 0
P
0 0 0 G E Q S R C B
1 0 0
24.00
False
23.60
True
6.60LD GEQ
7.00AND GEQ
24.00 7.00
OR GEQ
GEQ
GRTR THAN OR EQUAL
Source A N7:11
0
Source B 100
Execution Times (µ sec) when:
Ladder representation:
G
r
e
at
e
r
Than
or
E
q
ual
(G
E
Q)
5
6
FUN
ENT
To enter the function code, press: