Omron C200HX Manuale Utente

The following example shows the comparisons made and the results provided
for MCMP(19). Here, the comparison is made during each cycle when 00000 is
ON.

IR 100

0100

DM 0200

0100

DM 030000

0

IR 101

0200

DM 0201

0200

DM 030001

0

IR 102

0210

DM 0202

0210

DM 030002

0

IR 103

ABCD

DM 0203

0400

DM 030003

1

IR 104

ABCD

DM 0204

0500

DM 030004

1

IR 105

ABCD

DM 0205

0600

DM 030005

1

IR 106

ABCD

DM 0206

0210

DM 030006

1

IR 107

0800

DM 0207

0800

DM 030007

0

IR 108

0900

DM 0208

0900

DM 030008

0

IR 109

1000

DM 0209

1000

DM 030009

0

IR 110

ABCD

DM 0210

0210

DM 030010

1

IR 111

ABCD

DM 0211

1200

DM 030011

1

IR 112

ABCD

DM 0212

1300

DM 030012

1

IR 113

1400

DM 0213

1400

DM 030013

0

IR 114

0210

DM 0214

0210

DM 030014

0

IR 115

1212

DM 0215

1600

DM 030015

1

MCMP(19)

100

DM 0200

DM 0300

00000

 TB1: IR 100

TB2: DM 0200

 R: DM 0300

00000

LD

00000

00001

MCMP(19)

100

DM

0200

DM

0300

Cp1: First compare word

IR, SR, AR, DM, HR, TC, LR, #

Cp2: Second compare word

IR, SR, AR, DM, HR, TC, LR, #

CMP(20)

Cp1

Cp2

When comparing a value to the PV of a timer or counter, the value must be in
BCD.

When the execution condition is OFF, CMP(20) is not executed. When the
execution condition is ON, CMP(20) compares Cp1 and Cp2 and outputs the
result to the GR, EQ, and LE flags in the SR area.

Placing other instructions between CMP(20) and the operation which accesses
the EQ, LE, and GR flags may change the status of these flags. Be sure to ac-
cess them before the desired status is changed.

CMP(20) cannot be used to compare signed binary data. Use CPS(––) instead.
Refer to 5-17-8 SIGNED BINARY COMPARE – CPS(––) for details.