Mitsubishi QJ71C24N - Sequence Program for Data Transmission

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MELSEC-Q
7 DATA COMMUNICATION USING THE BIDIRECTIONAL PROTOCOL
7.2.3 Sequence program for data transmission
A sequence program for data transmission is explained below.
For details on the BIDOUT instruction for data transmission, see Chapter 10.
G.BIDOUT Un D0 D11 M0
M0 M1
M1
Transmission
instruction
Create transmission data from D11
(In case of the CH1 side)
Create control data from D0
Processing for normal completion
Processing for abnormal completion
(retransmission, etc.)
Q series C24 ready (X1E)
Transmission instruction
BIDOUT instruction
BIDOUT instruction complete device
BIDOUT instruction complete device + 1
(Normal completion/abnormal completion)
Transmission data count (address: 400
H
)
Transmission data (address: 401
H to)
BIDOUT
1 scan
0n
Transmission data
Data transmission
1)
2)
3)
4)
ON when transmission
abnormal completion
Receiving response