X8 Instruction Set Reference Manual
9-2
Compare Instructions
The following table shows the compare instructions.
* Only use the High Speed Counter Accumulator for Source A in GT, LT, GE, and LE instructions.
Using the Compare
Instructions
Most of the compare instructions use two parameters, Source A and Source B
(EQM and LIM have an additional parameter). Both sources cannot be
constant values. But only one source of two can be constant value.
The valid data ranges for these instructions are:
• Word (16Bit): 0 ~ 32,767
• Long Word (32Bit): 0 ~ 2,147,483,647
When at least one of the operands is a Floating Data Point value:
• For EQ, GE, GT, LE, and LT - If Source A is not a number, then rung state
changes to false.
Instructions
Description
EQ : Compare for equal
==
Compare whether two values are equal.
NE : Compare for not equal
!=. < >, ?
Compare whether one value is not equal to a second
value.
LT : Compare for Less Than
<
Compare whether one value is less than a second
value.
LE : Compare for Less Than or
Equal
<=
Compare whether one value is less than or equal to a
second value.
GT : Compare for Greater Than
>
Compare whether one value is greater than a second
value.
GE - Compare for Greater Than or
Equal
>=
Compare whether one value is greater than or equal to
a second value.
EQM : Masked Compare for
Equal
Compare two input values after Mask and AND
LIM - Limit Test
Compare whether one value is within the range of two
other values
Parameter
Data Table
SFR
Address
Mode
Address
Level
Y
X
SR
B
TM, CT
, CR
N
F
ST
A
L
MG,
PD
RP
PS
RTC
HSC
PTO
, PWM
STI
EII
BHI
MM
I
CS
-Comms
DLS-DataLog
Imm
edi
ate
Direct
Indirect
Bi
t
Wo
rd
LongW
ord
Element
Source A
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
Source B
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
Содержание X8 Series
Страница 1: ...Catalog Number s X8 M14DDT X8 M16DDR X8 M32DDT X8 Instruction Manual Reference Manual ...
Страница 16: ......
Страница 64: ...X8 Instruction Set Reference Manual 2 12 X8 Series PLC Memory and Data Table ...
Страница 134: ...X8 Instruction Set Reference Manual 5 38 Using the High Speed Counter and Programmable Limit Switch ...
Страница 166: ...X8 Instruction Set Reference Manual 7 8 Relay Type Bit Instructions ...
Страница 180: ...X8 Instruction Set Reference Manual 8 14 Timer and Counter Instructions ...
Страница 205: ...X8 Instruction Set Reference Manual Math Instructions 10 17 ...
Страница 206: ...X8 Instruction Set Reference Manual 10 18 Math Instructions ...
Страница 212: ...X8 Instruction Set Reference Manual 11 6 Converion Instructions ...
Страница 218: ...X8 Instruction Set Reference Manual 12 6 Logical Instructions ...
Страница 236: ...X8 Instruction Set Reference Manual 15 8 Shift and FIFO LIFO Instructions ...
Страница 242: ...X8 Instruction Set Reference Manual 16 6 Sequencing Instructions ...
Страница 252: ...X8 Instruction Set Reference Manual 18 4 Input and Output Instructions ...
Страница 280: ...X8 Instruction Set Reference Manual 20 12 PID Control ...
Страница 296: ...X8 Instruction Set Reference Manual 21 16 ASCII Instructions ...
Страница 308: ...X8 Instruction Set Reference Manual 22 12 Communications Instructions ...
Страница 312: ...Appendix A 4 System Error Code ...
Страница 313: ...Appendix B MSG Instruction Error Code MSG Instruction Error Code ...
Страница 322: ...Appendix B 10 MSG Instruction Error Code ...
Страница 325: ...ASCII Character Set Appendix C 3 ...
Страница 326: ...Publication number X8 RM001A EN September 2012 ...
Страница 327: ...Copyright 2012 RS Automation Co Ltd All rights reserved ...