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MELSEC-
A
7 USING FRAMES WHEN EXCHANGING DATA
(2) Example of setting to buffer memory
An example of setting the buffer memory for monitor transmission is shown
below.
The R2 buffer memory is set as follows to monitor the RX5 in the remote I/O
module of the first station, and transmits the contents of the transmission table
when a transmission trigger is generated.
RX5 ON!
R2
Master station
Remote
I/O module
Transmission
area data
(8000
H)
Registration
frame No.: 2
H
External device,
such as ID controller
2
1
1005
H
0201
H
5
2
H
8000
H
Transmission table
designation (No. 1)
Transmission table
designation (No. 2)
A
ddress Setting valueR2
R2 70
H
R2 71
H
R2 78
H
R2 79
H
R2 11A
H
R2 122
H
R2 123
H
Monitor interval time
designation
..... Monitor interval time : 200ms
Monitor designation size
Monitor target designation 1
..... Monitor designation size : 1
..... Monitor target: Rising edge of RX5
Transmission data
designation 1
..... Transmission data designation :
Data to transmission table (No. 1 to 2)
Transmission timeout
designation
..... Transmission timeout time : 500ms
..... Transmission table (No. 1) :
Registration frame No. 2
H
..... Transmission table (No. 2) :
Transmission area data