Modbus(R) Device Assignment Parameters - Mitsubishi QJ71MB91 User Manual

9
PROGRAMMING

9.1.2 MODBUS(R) device assignment parameters

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