Mitsubishi Electronics MELSEC Q series MELSEC L series ユーザーズマニュアル

5-146

J_READ, G_READ

READ instruction

J_READ, G_READ

*1 :

Local devices and file registers per program cannot be used as setting data.

*2 :

Only CC-Link IE Field Network
When the target station is LCPU, Universal model QCPU, or  Basic model QCPU, the digit specification 
of the bit device can be used (example: K4M16).
The digit specification of the bit device can be used when the following conditions are met.

• The device number is a multiple of 16 (10

H

).

• The digit specification is 4 points (K4).

Function

This instruction reads data from a word device of another station.

J(P)_READ
G(P)_READ

P: Executing condition

:

 indicates any of the following 

instructions.

J_READ

JP_READ

G_READ

GP_READ

Input argument

EN:

Executing condition

:Bit

Jn*:

Network number of the host station (1 to 239, 254)
254: Network specified in 

"

Valid module during other station 

access

"

:ANY16

Un*:

Start I/O number of the module
(00 to FE: Higher two digits when expressing the I/O number in 
three digits)

:ANY16

s1:

Variable that stores control data

:Array of ANY16 [0..17]

s2:

Start number of the target station's device from which data are 
read

:ANY

Output argument

ENO:

Execution result

:Bit

d1:

Start number of the host station's device that stores read data :ANY16

d2:

Variable that turns ON upon completion of the instruction
d2[1] also turns ON at the time of error completion.

:Array of bit [0..1]

Setting

data 

*1

Internal device

R, ZR

J

\

U

\G

Zn

Constant Others

Bit

Word

Bit

Word





*2









EN

ENO

Jn*

d1

d2

s1

s2

EN

ENO

Un*

d1

d2

s1

s2

(EN, Jn*, s1, s2, d1, d2);

ENO:=

(EN, Un*, s1, s2, d1, d2);

ENO:=

J_READ

G_READ

J_READ

G_READ

s1

s2

d1

d2