6-4 memory area write, Memory area write – Omron CQM1H-CLK21 User Manual

Page 238

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Commands and Responses for C200HX/HG/HE and CQM1H-series PLCs

Section 6-6

Memory Areas
The following areas can be read. (Refer to 6-6-2 Memory Area Designations
for PLC word/bit address designations):

6-6-4

MEMORY AREA WRITE

Writes data to the specified number of consecutive words starting from the
specified word. All words must be in the same memory area. (Here, all mem-
ory areas with the same memory area code are considered as one area).

Note When data is written to the Timer/Counter PV area, the Completion Flags will

be turned OFF (0).

Command Block

Response Block

Parameters

Memory area code (command): The data area to write.

Beginning address (command): The first word/value to write. Specify 00
(Hex) for the 3rd byte.

No. of items (command): The number of items to be written. Specify 0000 to
03E5 (Hex) (0 to 997 decimal). The command can be completed normally
even if zero items are specified.

Data (command): The data to be written. PVs for timers and counters are
written as BCD. The required number of bytes in total is calculated as follows:

2 bytes

×

No. of items

The following data can be written. (Refer to 6-6-2 Memory Area Designations-
for the word/bit address designations):

Memory area

Data

Memory area

code

No. of

bytes

IR, SR, LR, HR, or
AR

Word contents

80

2

Timer/Counter

Completion Flag status

01

1

PV

81

2

DM

Word contents

82

2

Expansion DM

Word contents

90 to 97, 98,
and A8 to AF

2

Command

code

01

02

Beginning address

Memory area code

Status

No. of items

00

Command

code

01

02

Response

code

Memory area

Data

Memory area

code

No. of

bytes

IR, SR, LR, HR, or
AR

Word contents

80

2

Timer/Counter

PV

81

2

DM

Word contents

82

2

Expansion DM

Word contents

90 to 97, 98,
and A8 to AF

2

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