Mitsubishi Electronics A1SJ71AT23BQ ユーザーズマニュアル

5

(c) MELSECNET/B(A1SJ71AT23BQ)

The connection of the MELSECNET/B(A1SJ71AT23BQ) is as follows:

Set the RUN/STOP switch of the CPU module to STOP, and set the DIP switch on the 
front of the link module as follows:
(

Section 5.3 Part Names and Settings)

Executing station No. n

Station No. setting 
switch

01

Station No.1

Mode setting switch

5

Station-to-station test (Executing station)

Other station No. n + 1

Station No. setting 
switch

02

Station No.2

Mode setting switch

6

Station-to-station test (Other station)

SDA/RDA

SDB/RDB

SG(L)

FG

SDA/RDA

SDB/RDB

SG(L)

FG

Shielded twisted
pair cable

Shield

Shield

Data flow

Executing station No.n

Other station No.n+1

SDA/SDB of executing station    RDA/RDB of other station

RDA/RDB of executing station    SDA/SDB of other station

Terminating resistor

(110    1/2W)

Terminating resistor

(110    1/2W)

Start

End

Judge the test result.

Turn ON from OFF the power supply of the other 
station or reset the CPU module.

Turning ON from OFF the power supply of the 
executing station No.n or resetting the CPU module 
leads to start the test.