Справочник Пользователя для Mitsubishi Electronics QCPU

8-6

RTREAD

Reading/Writing Routing Information

Reading routing information (S(P)/Z(P).RTREAD)

RTREAD

Function

(1) Reads data from transfer destination network number specified by n, using routing 

information set by the routing parameters, and stores it into the area starting from 

.

(2) If no data for the transfer destination network number specified by n is set at the routing 

parameters, stores 0 into the area starting from 

.

(3) The contents of the data stored in the area starting from 

 is as indicated below.

Operation Error

(1) In any of the following cases, an operation error occurs, the error flag (SM0) turns ON, and 

an error code is stored into SD0.
 • When data specified by n is other than 1 to 239.

(Error code: 4100)

 • The device specified by 

 exceeds the range of the corresponding device. 

(For the Universal model QCPU only.)

(Error code: 4101)

 n

: Transfer destination network No. (1 to 239) (BIN 16 bits)

: Head number of the devices that stores the read data (Device name)

Setting

Data

Internal Devices

R, ZR

J

\

U

\G

Zn

Constants

K, H

Other

Bit

Word

Bit

Word

n

––

––

––

––

––

––

Basic

Command

S.RTREAD

Command

n

SP.RTREAD

n

D

S.RTREAD

SP.RTREAD

D

D

D

D

D

D

Relay station number

+0

+1

+2

Dummy

Relay network number

(1 to 239)

(Individual data ranges)

(1 to 120)

D

D