Omron CJ1W-CLK21-V1 ユーザーズマニュアル

Reads the contents of the specified number of non-consecutive memory area
words, starting from the specified word. 

Note If there is an error in the command code or an address, no data will be read.

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

Address (command): The word/bit/flag to read. The content of up to 128
words can be read. If one or more EM Area words is included in the data to be
read, the maximum number of words that can be read will be limited to 100.

Data (response): The data in the specified memory area(s) will be returned
in sequence starting from the beginning address. 

Memory Areas
The following data can be written. (Refer 6-6-2 Memory Area Designations for
memory area designations):

Reads the contents of the specified number of consecutive program area
words starting from the specified word. The program is read a machine lan-
guage (object code). A maximum of 1,990 bytes can be read with each com-
mand.

Address

Command 

code

01

Memory area code

04

Memory area code

Address

128 addresses maximum

Command 

code

01

04

Memory area code

Response 

code

Data

Memory area code

Data

IR, SR, LR, HR, or 
AR

Bit status

00

1

Word contents

80

2

Timer/Counter

Status

01

1

PV

81

2

DM

Word contents

82

2

Expansion DM

Word contents

90 to 97, 98, 
and A8 to AF

2

03

06

Program 

no.

Beginning address

00

00

No. of 

bytes

Command 

code