8
UTILITY PACKAGE (GX Configurator-MB)
8.4 Initial Setting
8.4.2 MODBUS(R) device assignment parameter
8 - 21
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)
* 2 When setting the QJ71MB91 buffer memory, enter "H0".
(No other value can be set.)
At this time, set the value to be returned to the master in the case of Read Exception Status
(FC:07) into "Allocated error status area".
* 3 "Allocated error status area" is valid only when the QJ71MB91 buffer memory is specified as the
error status read device assignment target.(
Section 7.3.4)
Table8.8 Setting items on the MODBUS(R) device assignment parameter setting screen (Continued)
Setting item Buffer memory address Reference
Error status read device
*2
000AH to 000BH
(10 to 11)
Section 7.3.4
Allocated error status area
*3
000FH
(15)
Access target (when mounted to MELSECNET/H remote I/O station)
000E
H
(14)
Section 7.3.5
CPU response monitoring timer value
000D
H
(13)
Section 7.3.6
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