Mitsubishi QJ71MB91 - Specifying the Error Status Read Device

7
PARAMETER SETTING
7.3 MODBUS(R) Device Assignment Parameter
7.3.4 Specifying the error status read device
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1
OVERVIEW
2
SYSTEM CONFIGURATION
3
SPECIFICATIONS
4
MODBUS(R) STANDARD FUNCTIONS
5
FUNCTION
6
PRE-OPERATIONAL PROCEDURES AND SETTINGS
7
PARAMETER SETTING
8
UTILITY PACKAGE (GX Configurator-MB)
7.3.4 Specifying the error status read device
Users can specify the data to be read out as an exception status when the QJ71MB91
(slave) receives Read Exception Status (FC:07) from the master.
(1) To specify the error status read device
Specify a read target device to the addresses shown below.
The 8 points from the specified bit device is regarded as a error status read device.
Figure 7.11 Relations between error status and error status read device
Table7.10 Error status read device specification
Address Parameter name Setting range Default
000A
H
(10)
Error status read device specification
Device code
0000
H : Device code not assigned
Other than 0000
H: Device code
F000
H
000B
H
(11)
Head device number 0000
H to FFFFH 0000H
M100
M107
M100 to M107
Device
R
Programmable
controller CPU
No sequence
program required
01 H
QJ71MB91 (Slave function)
Error status read device specification
Device memory
Exception status
Request message
(Sends Read Exception Status (FC:07))
Receives response message (exception
status 01
H )
MODBUS
Master device
RS-232, RS-422 or RS-485
to