Mitsubishi Q2ACPU User Manual

9.
9 - 1
MAINTENANCE FUNCTION
9 MAINTENANCE FUNCTION
9.1 Function List
The following shows the functions for maintenance.
For details on operations at GPP function, refer to the GX Developer Operating Manual or
SW IVD-GPPQ Operating Manual (Online).
Item Description Reference
Watchdog timer
Function that monitors watchdog errors due to CPU module
hardware or program errors.
Section 9.2
Self-diagnostics function
Function whereby the QnACPU itself diagnoses whether or not
there are any errors.
Section 9.3
Breakdown history
Function that stores the results of diagnosis in memory as a fault
history.
Section 9.4
System protect
Function that sets whether reading/writing is enabled or disabled
for QnACPU files.
Section 9.5
Keyword registration
Function that disables GPP function operations with respect to the
CPU module.
Section 9.6
Online I/O module change
Function that allows replacement of I/O modules while the CPU
module is in the RUN status.
Section 9.7
System display
Function that allows monitoring of the system configuration by
connecting a peripheral device capable of GPP functions.
Section 9.8
LED indications
Function that indicates the operating state of the CPU module by
means of LEDs or the LED indicator on the front face of the CPU
module.
Section 9.9
LED indication Indicates whether CPU module operation is normal or abnormal. Section 9.9.1
Priority setting Priority for LED indication is set depending on the error. Section 9.9.2

Mitsubishi Q2ACPU Specifications

General

Brand	Mitsubishi
Model	Q2ACPU
Category	Controller
Language	English