Mitsubishi QJ71C24N User Manual page 172

6 DATA COMMUNICATION USING THE NON PROCEDURE PROTOCOL
For normal completion
D 0 Interface number
D 1 Transmission result
D 2 Transmission data count
D11
to
Transmission data
D15
For abnormal completion
Interface number
D 0
Transmission result
D 1 (other than 0000
D 2 Transmission data count
D11
to
Transmission data
D15
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(Program example)
When Q series C24 I/O signals are from X/Y00 to X/Y1F:
(0001 )
H
(0000 )
H
(0005 )
H
(4241 )
H
to
(0A0D )
H
(0001 )
H
) From buffer memory (address 257
H
(0005 )
H
(4241 )
H
to
(0A0D )
H
POINT
(1) The SPBUSY instruction is used to read the execution status when using a
dedicated instruction. (See Chapter 10.)
(2) More than one OUTPUT instruction cannot be executed simultaneously.
Execute the next OUTPUT instruction only after the execution of the first
OUTPUT instruction is completed.
The transmission command is converted into pulse.
Transmission data is stored.
Designate the number of the interface(CH
will send the data.
Clear the transmission result storage device to 0.
Designate the transmission data count in word units.
(Designate K10 when the unit is bytes.)
The transmission data stored in the designated
device is sent.
After the OUTPUT instruction is executed, the user
designated transmission complete signal (M0) turns
ON for one scan.
Storing the transmission data and writing the trans-
mission data count in the buffer memory, and issuing
a transmission request to the Q series C24 are all
executed by the programmable controller CPU.
The completion flag is reset by an external
command.
Q series C24
Address Buffer memory
257 Data transmission result
H
400 Transmission data count designation
H
401
H
to
Transmission data designation
5FF
H
)
H
MELSEC-Q
) that
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