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

7.2 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.
Note: Error log is also stored in SR. Refer to Chapter 2 for more information on SR.
7.2.1

ERROR LED Indicators Are ON

Error
Code
Description
(16#)
000A Scan timeout
7.2.2

ERROR LED Indicators Blinking Every 0.5 Seconds

Error
Code
Description
(16#)
The program in the PLC is
000C
damaged.
The initial value of the device and
000D the PLC program are not
downloaded completely.
0010 CPU memory is denied.
PLC scan time is longer than
0020 expected, due to abnormality of
CPU operation speed.
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.
Solution
1. Check the setting of the watchdog timer in HWCONFIG.
2. Check if the program causes a long scan time
Solution
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
device that is to be restored to defaults.
2. Check if the network connection is normal for the PLC
CPU and the device that is to be restored to defaults.
3. Check the compatibility of the device to be restored to
defaults.
If the problem persists, contact the local authorized
distributors.
Download the program again.
Check if the settings in HWCONFIG are consistent with
the arrangement of the function cards.
Check the position where an error occurs and modify the
program. Compile the program and download the
program again.
C h a p t e r 7 Tr o u b l e s h o o t i n g
Flag Log
SM8
Flag Log
SM9
SM9
SM9
SM9
SM9
SM9
SM34
SM10
SM5
SM5
SM5
V
V
V
V
V
7_
V
V
V
V
X
X
X
7 - 7