Mitsubishi QJ71MB91, User Manual

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9
PROGRAMMING
9.1 Parameter Setting
9.1.2 MODBUS(R) device assignment parameters
9
- 4
9
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R
OGRAM
M
ING
10
D
E
DICA
TED
INSTRUC
TI
ONS
11
TR
O
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BLE
S
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A
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S
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9.1.2 MODBUS(R) device assignment parameters
(1) MODBUS device assignment parameter setting method
Set the MODBUS device assignment parameters with sequence program as
follows.
1) Store MODBUS device assignment parameters in the following buffer
memories.
2) Turn ON the MODBUS device assignment parameter setting request (Y8).
(2) I/O signals used for MODBUS device assignment parameter setting
Use the following I/O signals for MODBUS device assignment parameter setting.
Table9.2 MODBUS device assignment parameter storage location
Address Name Reference
000A
H
to 000B
H
(10 to 11)
Setting error status read device Section 7.3.4
000D
H
(13)
CPU response monitoring timer value Section 7.3.6
000E
H
(14)
Access target (when mounted to MELSECNET/H remote I/O
station)
Section 7.3.5
0900
H
to 09FF
H
(2304 to 2559)
MODBUS device assignment parameter
Section 7.3.1
Table9.3 I/O signals used for MODBUS device assignment parameter setting
Signal Signal name
X0
Module READY
ON : Accessible
OFF : Not accessible
X8
MODBUS device assignment parameter setting, normally completed
ON : Normally completed
OFF : -
X9
MODBUS device assignment parameter setting, error completed
ON : Error completed
OFF : -
XA
MODBUS device assignment parameter setting existence
ON : Parameters set
OFF : No parameters set
X10
Intelligent function module switch setting change status
ON : Setting being changed
OFF : Setting not changed
Y8
MODBUS device assignment parameter setting request
ON : Being requested
OFF : Not requested