Mitsubishi QJ71MT91 User Manual page 204

Modbus/tcp interface module melsec-q series
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9 PROGRAMMING
<<Basic parameter setting>>
Parameter
Module
setting
READY
command
REMTO
REMTO
instruction
instruction
completion
result
REMTO
instruction
result
9 - 42
(b) Program example for parameter setting and automatic
communication function
POINT
After execution of the REMTO/REMFR instruction, it requires several scans until
read/write of actual data is completed.
Take corrective action for error completion, referring to Q
Corresponding MELSECNET/H Network System Reference
Manual (Remote I/O Network).
MELSEC-Q
Initializes basic parameter
creation area.
TCP ULP timer value
TCP zero window timer value
TCP resend timer value
TCP end timer value
IP reassembly timer value
Split reception monitoring timer
value
KeepAlive
KeepAlive start timer value
KeepAlive interval timer value
KeepAlive resend count
Router relay function
Subnet mask pattern
Default router IP address
Number of routers set
Subnet address
Router IP address
Number of TCP connections for
GX Developer connection
Transfers basic parameters to
REMTO
QJ71MT91 buffer memory.
instruction
completion
Turns ON Basic parameter
Parameter
setting command (M200) when
setting
ZP.REMTO instruction is
command
completed normally.
Handling of ZP.REMTO
instruction error
9 - 42

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