Troubleshooting For Cpu Modules; Error Led Indicators Are On; Error Led Indicators Blinking Every 0.5 Seconds - Delta AS Series Operation Manual

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12.2 Troubleshooting for CPU Modules

Check the LED indicators and the error codes from the CPU module and refer to the following table for troubleshooting.
V in the Log column indicates the error is recorded in the log. X in the Log column indicates the error is not recorded in
the log. H in the Log column indicates whether or not you can set recording the error in the log in HWCONFIG. Error
records will be also stored in SR; refer to Chapter 2 for more information on SR.

12.2.1 ERROR LED Indicators Are ON

Error
Code
(16#)
000A Scan timeout

12.2.2 ERROR LED Indicators Blinking Every 0.5 Seconds

Error
Code
(16#)
The program in the PLC is
000C
damaged.
The initial value of the device and
000D the PLC program are not completely
downloaded.
0010 CPU memory access is denied.
CPU operation speed is not at its
0020
highest.
Failed to restore Delta device
0021
parameters back to defaults
CPU external memory access is
002E
denied.
PLC programs are not consistent
002F
with the system logs.
The arrangement of the function
0070 cards is not consistent with the
settings.
The interrupt number exceeds the
0102
range.
The MC instruction exceeds the
0202
range.
The MCR instruction exceeds the
0302
range.
0D03
The operands used in DHSCS are
Description
1. Check the setting of the watchdog timer in HWCONFIG.
2. Check whether the program causes a long scan time
Description
Download the program again.
Download the program again.
If the problem persists, contact the local authorized
distributors.
If the problem persists, contact the local authorized
distributors.
1. Check if the EDS file of the device is the same as the
2. Check if the network connection is normal for the PLC
3. Check the compatibility of the device to be restored to
If the problem persists, contact the local authorized
distributors.
Download the program again.
Check whether the settings in HWCONFIG are
consistent with the arrangement of the function cards.
Check the syntax error step in the program. Modify and
compile the program and then download the program
again.
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Solution
Solution
device that is to be restored to defaults.
CPU and the device that is to be restored to defaults.
defaults.
Flag Log
SM8 V
Flag Log
SM9 V
SM9 V
SM9 V
SM9 V
SM9 H
SM9 V
SM34 V
SM10 V
SM5 X
SM5 X
SM5 X
SM5 X