Omron CPM1 Programming Manual

255
Comparison Instructions Section 5-18
LE: ON if Cp1 is less than Cp2.
GR: N if Cp1 is greater than Cp2.
Example In the following example, the content of 102 is greater than that of DM 0020,
so 10000 is turned ON and the other bits, 10001 and 10002, are turned OFF.
5-18-7 DOUBLE SIGNED BINARY COMPARE – CPSL(––)
Limitations This instruction is available in the CQM1-CPU4@-E/-EV1 only.
Description When the execution condition is OFF, CPSL(––) is not executed. When the
execution condition is ON, CPSL(––) compares the 32-bit (8-digit) signed
binary contents in Cp1+1, Cp1 and Cp2+1, Cp2 and outputs the result to the
GR, EQ, and LE flags in the SR area.
Precautions Placing other instructions between CPSL(––) and the operation which
accesses the EQ, LE, and GR flags may change the status of these flags. Be
sure to access them before the desired status is changed.
Comparison result Flag status
GR (SR 25505) EQ (SR 25506) LE (SR 25507)
Cp1 < Cp2 0 0 1
Cp1 = Cp2 0 1 0
Cp1 > Cp2 1 0 0
CPS(––)
DM 0020
102
00500
25505
10000
25507
10002
TR
0
25506
10001
Greater Than
Equal
Less Than
000
Address Instruction Operands
00000 LD 00500
00001 OUT TR 0
00002 CPS(––)
102
DM 0020
000
00003 AND 25505
00004 OUT 10000
00005 LD TR 0
00006 AND 25506
00007 OUT 10001
00008 LD TR 0
00009 AND 25507
00010 OUT 10002
Cp2: DM 0020
AE 3 5
>
Cp1: 102
6FA 4
(28,580 decimal) (–20,939 decimal)
Cp1: First compare word
IR, SR, AR, DM, HR, TC, LR, #
Cp2: Second compare word
IR, SR, AR, DM, HR, TC, LR, #
Ladder Symbols Operand Data Areas
CPSL(––)
Cp1
Cp2
000
000
Not used. Set to 000.

Omron CPM1 Specifications

General

Model	CPM1
Manufacturer	Omron
Instruction Set	Basic and advanced instructions
Power Supply	100 to 240 VAC or 24 VDC
Communication	RS-232C
I/O Points	10, 20, 30, or 40 points depending on the model
Timers	Yes, multiple timers available
Counters	Yes, multiple counters available
Input Voltage	24V DC
Output Type	Relay or transistor
Number of I/O Points	10, 20, 30, 40
Communication Ports	RS-232C (optional)
Operating Temperature	0°C to 55°C
Storage Temperature	-20°C
Humidity	10% to 90% (non-condensing)
Dimensions	Varies depending on the model
Weight	Varies depending on the model
Program Memory	2048 steps (2K steps)