Function List - Mitsubishi Q2ACPU User Manual

9. MAINTENANCE FUNCTION
9 MAINTENANCE FUNCTION
9.1

Function List

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