Troubleshooting And Technical Support - ICP DAS USA ET-7000 Series User Manual

Chapter 9 Troubleshooting and Technical Support

9. Troubleshooting and Technical Support

This chapter discusses methods of quickly diagnosing and fixing problems or errors
without having to contact ICPDAS.
When troubleshooting the following problems, please make sure that the module is
switched on, and confirm that the physical connections are correct (power cable, network
cable and serial cable)
Note that some unexplained errors might be caused by duplicate IP addresses on the
Network. Make sure that the IP address of your module is unique.
Symptom/Problem
The RUN LED doesn't light
The RUN LED indicator is
ON (light), but not flashing.
Cannot communicate via
the Ethernet port, but the
ET-7000 is still operating.
Able to explore the web
page through port 80 using
a web browser, but the Web
HMI and Modbus/TCP
program cannot access the
module through port 502.
The Web HMI and
Modbus/TCP program can
ET-7000 AIO User Manual, Apr. 2009, V1.04, EMH-011-104
Table 9-1 Troubleshooting
Possible cause
Internal power has failed
The module has possibly
crashed.
The IP/Mask/Gateway
address isn't within the IP
address range of the LAN.
The IP address has
restricted by the IP filter
settings
There are more than 30
TCP/IP connections.
Port 502 has been restricted
by the firewall.
The Port 502 has restricted
by the firewall.
Solution
Return the module for
repair.
Reboot the module
Change the
IP/Mask/Gateway address
to match the LAN, or ask
the MIS administrator for
assistance.
Check the IP filter setting
using the Web
configuration.
Reboot the module.
Consult your MIS
administrator for assistance.
Consult your MIS
administrator for assistance.
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