Omron SYSMAC CV Series Operation Manual page 218

Comparison Instructions
Flags
Example 1:
Saving CMP(020) Results
0000
00
(020)
CMP 0010
Example 2:
Obtaining Indications
during Timer Operation
206
Placing other instructions between CMP(020) and the operation which ac-
cesses the EQ, LE, and GR Flags may change the status of these flags. Be sure
to access them before the desired status is changed.
Note Refer to page 115 for general precautions on operand data areas.
Content of *DM word is not BCD when set for BCD.
ER (A50003):
GR (A50005): ON if Cp
EQ (A50006): ON if Cp
LE (A50007): ON if Cp
The following example shows how to save the comparison result immediately. If
the content of word 0010 is greater than that of word 1209, bit 000200 is turned
ON; if the two contents are equal, bit 000201 is turned ON; if content of word
0010 is less than that of word 1209, bit 000202 is turned ON. In some applica-
tions, only one of the three OUTs would be necessary, making the use of TR 0
unnecessary. With this type of programming, bits 000200, 000201, and 000202
are changed only when CMP(020) is executed.
A500
TR0
05(>)
1209
A500
06(=)
A500
07(<)
The following example uses TIM, CMP(020), and the LE Flag (A50007) to pro-
duce outputs at particular times in the timer's countdown. The timer is started by
turning ON bit 000000. When bit 000000 is OFF, TIM 0010 is reset and the sec-
ond two CMP(020)s are not executed (i.e., executed with OFF execution condi-
tions). Output 000200 is produced after 100 seconds; output 000201, after 200
seconds; output 000202, after 300 seconds; and output 000204, after 500 sec-
onds.
is greater than Cp .
1 2
equals Cp .
1 2
is less than Cp .
1 2
0002
00
Greater Than
0002
01
Equal
0002
02
Less Than
Section 5-16
Address Instruction Operands
00000 LD 000000
00001 CMP(020)
00002 OUT
00003 AND A50005
00004 OUT 000200
00005 LD
00006 AND A50006
00007 OUT 000201
00008 LD
00009 AND A50007
00010 OUT 000202
0010
1209
TR0
TR0
TR0