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7   DATA LINK PROCEDURE 

MELSEC-QnA 

 

7.7 Switch Settings 

The setting method for each switch on the module is described. 

 

7.7.1 Station number setting (master station, local station, standby master station, and 

remote station) 

The station number setting method is described for the master station, local station, 
standby master station, and remote station. 

 

POINT 

 

Set the data so that it matches the setting in the "station information (address 20

H

 to 5F

H

)" in 

the parameter information area in the buffer memory. 

 

(1)   Set the station number to be consecutive. 

The station number can be set regardless of the connection order. 
Also, for modules that occupy more than 2 stations, set the first station number. 

 

Station type 

Station number to set 

Master station 

0 (Fix) 

Local station 

1 to 64 

Standby master station 

1 to 63 

Remote station 

1 to 64 

 

[Setting example] When setting the station numbers in the connection order: 

 

Master station

Station No.1 Station No.2 Station No.3 Station No.4 Station No.5 Station No.6 Station No.7 Station No.8 Station No.9

Station 

number "0"

Station 

number "1"

Station 

number "2"

    Remote station

1

    Remote station

2

    Local station

3

    Local station

4

Station 

number "4"

Station 

number "8"

1

      Remote station 
(occupies 1 station)

    

2

     Remote station 
(occupies 2 stations)

3

Local station

(occupies 4

stations)

4

Local station

(occupies 1 

station)