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

5-66

G_ONDEMAND

Serial Communication

ONDEMAND instruction

G_ONDEMAND

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

Function

This instruction sends data using the on-demand function of MC protocol.

G(P)_ONDEMAND

P: Executing condition

:

 indicates any of the following 

instructions.

G_ONDEMAND

GP_ONDEMAND

Input argument

EN:

Executing condition

:Bit

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..2]

s2:

Start number of the device that stores send data

:ANY16

Output argument

ENO:

Execution result

:Bit

d:

Variable that turns ON upon completion of the instruction
d[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











G_ONDEMAND

EN

ENO

Un*

s1

s2

d

G_ONDEMAND

(EN, Un*, s1, s2, d);

ENO:=

s1

s2

d