Delta AH500 - Page 779

Chapter 16 Remote I/O Module AHRTU-ETHN-5A
16-29
Category
Error
code
7-segment
display
Explanation How to deal with
timeout
2. Check if the module is normal.
3. Raise the setting value of RPI.
16#3001 E4
DLR link
offline
Check if Ring network products
are connected correctly.
MODBUS TCP
communication
error
16#5000 -
Out of
connections
1. Check if the number of
product connections exceeds
the limit.
2. Reduce the number of
product connections.
NTP
communication
error
16#5001 -
NTP Server
connection
failure
1. Check the setup for server
connection.
2. Check if the system server
exists.
3. Check if the wiring for
connection of the server is
proper.
16#5002 -
NTP time
update
failure
1. Check if the network
connection is normal.
2. Check if the NTP parameter
setup is correct.
16.7.3 Indicator Status
 MS/NS Indicator
LED Status
Indication How to deal with
MS
NS
LED OFF LED OFF
No supply power
Check if the supply power works
normally.
Green light and
red light blink
alternately
Green light and
red light blink
alternately
AHRTU initializing
No correction
Green light ON -
AHRTU initializing is
finished.
Red light ON -
CPU hardware error
1.
Check if the error indicator is OFF
after re-installing the module after
power OFF.
2. Replace the module and install
the new module. Check if the
error indicator is OFF.
3. Contact the local distributor.
Memory hardware
error
Flash
hardware
error
-
Green light blinks
I/O connection is not
made.
No correction.
Green light ON
I/O
connection has
been made.
-
Red light blinks
I/O
communication
timeout
1. Check if the network cable
connection is proper.
2. Check if the module is normal.
3. Raise the setting value of RPI
Red light blinks - IP setup error
Check if the IP address setup is
legal.
-
Red light ON
IP addresses
1. Check if there are duplicated IP