Mitsubishi MELSEC LJ71C24, Руководство пользователя

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11 DATA COMMUNICATION USING THE BIDIRECTIONAL PROTOCOL
Interface number
Transmission result
Transmission data count
Transmission data
(0001
H
)
(0000
H
)
(0005
H
)
D 0
D 1
D 2
D11
D15
For normal completion
From buffer memory (address 257
H
)
Buffer memory
Data transmission result
Transmission data count designation
Transmission data designation
Address
257
H
400
H
401
H
5FF
H
C24
(4241
H
)
(0A0D
H
)
(0001
H
)
(0005
H
)
D 0
D 1
D 2
D11
D15
(4241
H
)
(0A0D
H
)
For abnormal completion
Interface number
Transmission result
Transmission data count
Transmission data
to to
to to
to
(other than 0000
H
)
POINT
(1) The SPBUSY instruction is used to read the execution status when using a
dedicated instruction. (Refer to Chapter 10.)
(2) More than one BIDOUT instruction cannot be executed simultaneously.
Execute the next BIDOUT instruction only after the execution of the first
BIDOUT instruction is completed.