Sequence Program For Transmission Data - Mitsubishi QJ71C24N User Manual

6 DATA COMMUNICATION USING THE NON PROCEDURE PROTOCOL
CH1 side
address
400
H
(B)
401
H
42
(D)
402
H
44
(F)
403
H
46
(1)
404
H
31
(3)
405
H
33
(5)
406
H
35

6.2.3 Sequence program for transmission data

Transmission
instruction
M0 M1
M1
6 - 26
(2) Transmission data arrangement
The following example shows an arrangement of the transmission data to be sent
to the external device when storing it in the transmission area.
(Example) When transmitting "ABCDEFG123" (The transmit area is the default
value.)
Buffer memory
1)
5 or 10
(A)
41
H
H
(C)
43
H
H
2)
(E)
45
H
H
(G)
47
H
H
(2)
32
H
H
(4)
34
H
H
A sequence program for transmission data is explained below.
For details on the OUTPUT instruction used for data transmission, see Chapter 10.
Transmission data count
In accordance with the word/byte units designation
Word units....5
Bytes units....10
Transmission data designation
Sequentially store the transmission data to low address (L) → (H), next
address (L) → (H), in the order of transmission.
Create transmission data from D11
Create control data from D0
G.OUTPUT Un D0
Processing for normal completion
Processing for abnormal completion
(retransmission, etc.)
MELSEC-Q
(In case of the CH1 side)
D11 M0
6 - 26