Mitsubishi QJ71MB91 User Manual

4
MODBUS(R) STANDARD FUNCTIONS
4.10 Read Exception Status (FC: 07)
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OVERVIEW
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SYSTEM CONFIGURATION
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SPECIFICATIONS
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MODBUS(R) STANDARD FUNCTIONS
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FUNCTION
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PRE-OPERATIONAL PROCEDURES AND SETTINGS
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PARAMETER SETTING
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UTILITY PACKAGE (GX Configurator-MB)
4.10 Read Exception Status (FC: 07)
Reads error status.
(1) Request message format (Master Slave)
(2) Response message format (Slave Master)
(When completed normally)
* 1 The data of the device specified in the Setting error status read device (address: 000AH to 000BH)
in the buffer memory are stored in the error information area. ( Section 7.3.4)
(When completed with an error)
* 2 Exception and error codes are stored in the buffer memory in the case of error completion.
Refer to the following for storage location, confirmation methods, and detailed contents.
Section 11.4
Figure 4.25 Read exception status (Request message)
Figure 4.26 Read exception status (Normal request message)
Figure 4.27 Read exception status (Exception message)
Function code
Function code
(07
H)
Data
Function code
Function
code
(07
H)
Error
information *1
Data
Function code
Function
code
(87
H)
Exception
code *
2

Mitsubishi QJ71MB91 Specifications

General

Brand	Mitsubishi
Model	QJ71MB91
Category	Controller
Language	English