Delta AH02HC-5A, Hardware Manual

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Chapter 9 Troubleshooting
Error
Description Remedy
code
16#1406
A communication error occurs
when the data is accessed
through the main processor.
(SM9)
Check whether there is noise, and eliminate the
noise. If the error still occurs, please contact the
factory.
16#1407
A communication error occurs
when the data is accessed
through the auxiliary
processor. (SM9)
Check whether there is noise, and eliminate the
noise. If the error still occurs, please contact the
factory.
16#1408
The communication with the
module is incorrect. (SM9)
Check whether there is noise, and eliminate the
noise. If the error still occurs, please contact the
factory.
16#1409
The extension backplane is
disconnected. (SM9)
1. Check whether the extension backplane is
connected properly.
2. Check whether the extension backplane
operates normally, and make sure that the
extension backplane is not affected by noise.
16#140A
The communication with the
extension backplane is
incorrect. (SM9)
1. Check whether the extension backplane is
connected properly.
2. Check whether the extension backplane
operates normally, and make sure that the
extension backplane is not affected by noise.
16#140B
The number of network
modules exceeds the limit.
(SM9)
Please decrease the number of network modules to
the number supported by the system.
9.1.4 BUS FAULT LED Indicator’s Blinking
If the BUS FAULT LED blinks, please check the operating state of the module. Please refer to
sections 12.4.2~12.4.8 in AH500 Operation Manual for more information about the LED indicators,
and section 9.2 in this manual for more information about the troubleshooting for I/O modules.
9.1.5 Others
Error
code
Description Remedy
16#000F
The original program in the
PLC is damaged. After users compile the program again, they can
download the program again.
16#2026
The interrupt number used in
RS is incorrect.
Compile the program again, and download the
program again. If the error still occurs, please
contact the factory.
16#600A
TCP connection failure
(SM1090)
1. Check the actual network configuration, and
check whether the number of TCP connections
exceeds the upper limit supported by the CPU
module.
2. Retry the TCP connection later. (This error does
not cause the PLC to stop running. Users can
perform the corresponding remedy by means of
the related flag in the program.)
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