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MELSEC-
A
7 USING FRAMES WHEN EXCHANGING DATA
(Example of setting transmission data)
To transmit the data designated in the transmission tables No. 2
to No. 4 when a transmission trigger is generated.
R2 buffer memory
Transmission table
Transmission table No.1
R2 122
H
R2 123
H
R2 124
H
R2 125
H
Transmission table No.2
Transmission table No.3
Transmission table No.4
Transmission
table No. 4
data
Transmission
table No. 3
data
Transmission
table No. 2
data
RS-232-CTransmission
External
device
In this case, set "0302H" for the transmission data designation area.
0302
Designate transmission table size!
Designate head No. of transmission table!
H