3. Instruction Set
3-473
API Mnemonic Operands Function
240~
246
D
OR※
Parallel Type Comparison
Controllers
ES2/EX2 SS2 SA2
SE
SX2
Bit Devices Word devices Program Steps
Type
OP
X Y M S K H KnX KnY KnM KnS T C D E F
S
1
* ** * * * * * ***
S
2
* ** * * * * * ***
OR※: 5 steps
DOR※: 9 steps
PULSE 16-bit 32-bit
ES2/EX2 SS2
SA2
SE
SX2 ES2/EX2 SS2
SA2
SE
SX2 ES2/EX2 SS2
SA2
SE
SX2
Operands:
S
1
: Source device 1 S
2
: Source device 2
Explanations:
1. This instruction compares the content in S
1
and S
2
. Take API240 (OR =) for example, if the
result is “=”, the continuity of the instruction is enabled. If the result is “≠”, the continuity of the
instruction is disabled
2. OR※ (※: =, >, <, <>, ≤, ≥) instruction is used for parallel connection with contacts.
API No.
16-bit
instruction
32-bit
instruction
Continuity
condition
Discontinuity
condition
240
OR＝ DOR＝ S
1
＝S
2
S
1
≠S
2
241
OR＞ DOR＞ S
1
＞S
2
S
1
≦S
2
242
OR＜ DOR＜ S
1
＜S
2
S
1
≧S
2
244
OR＜＞ DOR＜＞ S
1
≠S
2
S
1
＝S
2
245
OR＜＝ DOR＜＝ S
1
≦S
2
S
1
＞S
2
246
OR＞＝ DOR＞＝ S
1
≧S
2
S
1
＜S
2
3. When the MSB (16-bit instruction: b15, 32-bit instruction: b31) of S
1
and S
2
is 1, the
comparison value will be viewed as a negative value in comparison..
4. When 32-bit counters (C200 ~ C254) are used in this instruction, make sure to adopt 32-bit
instruction (DOR※). If 16-bit instruction (OR※) is adopted, a “program error” will occur and
the ERROR indicator on the MPU panel will flash
Program Example:
M60 will be ON either when both X2 and M30 are “ON”, or when the content in 32-bit register D100
(D101) ≥ K100,000.
DOR>= D100 K100000
X2 M30
M60
