ET-7000/PET-7000 AIO Series User Manual, version 1.0.1 beta3 Page: 163
Copyright © 2009 ICP DAS Co., Ltd. All Rights Reserved. E-mail: [email protected]
Appendix C. Troubleshooting
A number of common problems are easy to diagnose and fix if you know the cause.
Symptom/Problem
Possible cause
Solution
The Run LED doesn’t light
Internal power has failed
Return the module for repair.
The Run LED indicator is ON
(light), but not flashing.
The module has possibly
crashed.
Reboot the module
The IP/Mask/Gateway
address isn’t within the IP
address range of the LAN.
Change the IP/Mask/Gateway
address to match the LAN, or
ask the MIS administrator for
assistance.
The IP address has
restricted by the IP filter
settings
Check the IP filter setting using
the Web configuration.
Cannot communicate via the
Ethernet port, but the
ET-7000/PET-7000 is still
operating.
There are more than 30
TCP/IP connections.
Reboot the module.
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.
Port 502 has been
restricted by the firewall.
Consult your MIS administrator
for assistance.
The Port 502 has restricted
by the firewall.
Consult your MIS administrator
for assistance.
The Web Configuration
function has been disabled.
(Shown on the Basic
Settings page)
Enable the Web Configuration
function using either the SMMI
or the console.
The Web HMI and
Modbus/TCP program can
access the module through
port 502, but Web browser
cannot explore the web page
through port 80 using a web
browser.
The Web server TCP port
has been changed from port
80 (Shown on the Basic
Settings page)
Change the TCP port to 80 or
reconnect the
ET-7000/PET-7000 using the
specific TCP port.
