Data Communication Using The Pre-Defined Protocol - Mitsubishi QJ71C24N User Manual

8 DATA COMMUNICATION USING THE PRE-DEFINED PROTOCOL

8 DATA COMMUNICATION USING THE PRE-DEFINED PROTOCOL
Enomous amounts of
sequence programs must be
created.
8
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Data can be transferred between the QJ71C24N(-R2/R4) and an external device using
GX Configurator-SC (Pre-defined protocol support function) with a protocol appropriate
to the external device.
Protocols can be selected from the pre-defined protocol library offered or can be
created and edited arbitrarily.
Since registered setting data are written to a flash ROM, the program volume in a
programmable controller CPU can be reduced.
(1) Data communication using the pre-defined protocol
Using non procedure protocol communication
Communication format
definition program
Using pre-defined protocol communication
Dedicated instruction
for starting the protocol
Executable with one
dedicated instruction
Simply registered in
GX Configurator-SC
(Pre-defined protocol
support function)
QCPU
QJ71C24N
(-R2/R4)
Send com mand definition program
Data transmission processing program
Data reception processing
program
Received data check
program
QCPU
QJ71C24N
(-R2/R4)
Protocol
setting data
MELSEC-Q
External
device
Send
Receive
External
device
Send
Receive
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