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7   DATA LINK PROCEDURE 

MELSEC-QnA 

 

(3)   There cannot be duplicate station numbers. 

If there are duplicate numbers, it results in loading status error. (Error code is 
stored in SW0069.) 
[Setting example] When a station number is duplicated: 

 

1

      Remote station 
(occupies 1 station)

    

2

     Remote station 
(occupies 2 stations)

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

Duplicate

Master station

Station 

number "0"

Station 

number "1"

Station 

number "2"

Station 

number "3"

Station 

number "7"

Remote 
station

1

Remote 
station

2

Local station

3

Local 
station

4

3

Local station

(occupies 4

stations)

4

Local station

(occupies 1 

station)

 

 

7.7.2 Mode setting 

When performing data link, "0 (online)" should be set normally. 
 

 

7.7.3 Transmission speed setting 

The transmission speed setting differs depending on the overall distance. 
Refer to Section 3.2.1, 3.2.2 for details. 

 

POINT 

 

Set the same transmission speed for all of master, local, standby master, remote, and 
intelligent device stations. If the setting of a slave station differs from that of the master station, 
data link cannot be performed between them.