Software Troubleshooting and Error Messages
Troubleshooting & Maintenance Guide Part No.: 4417594_Rev11
2 - 2 CIU 888
During commissioning of redundant
system setup secondary CIU 888
does not assume secondary role.
Sync Link cable between CIU 888s is
disconnected during commissioning
of redundant system setup.
(Can be observed in Logs window
and Diagnostics window of CIU 888
Web interface)
Reconnect Sync Link cable between
CIU 888s.
Configuration lock key switch and/or
W&M lock key switch of primary and/
or secondary CIU 888 in redundant
system setup is/are in ‘closed’ posi-
tion.
1. Open Configuration lock key
switch and W&M lock key switch
of both primary CIU 888 and
secondary CIU 888.
2. Perform procedure for commis-
sioning of redundant system
setup.
Note: Refer to Configuration Manual
CIU 888 (Part No. 4417593).
Secondary CIU 888 in redundant sys-
tem setup is not able to assume pri-
mary or secondary role after restart.
Sync Link cable between CIU 888s is
disconnected.
1. Reconnect Sync Link cable
between CIU 888s.
2. Restart secondary CIU 888.
In Hot Standby status of Entis Pro,
CIU 888 status is striked out.
Serial cable between Entis Pro sys-
tem and CIU 888 is disconnected or
malfunctioning.
1. Reconnect serial cable between
Entis Pro system and CIU 888.
2. If serial cable is malfunctioning,
replace cable.
Mismatch between Tank and CIU 888
CRCs within CIU 888 due to database
corruption.
(Can be observed in Logs window of
CIU 888 Web interface and ring of
light is red.)
1. Perform Reset to Factory Settings
operation via CIU 888 display.
2. Upload new site configuration to
CIU 888 using Service tool/
Migration tool.
Note: Refer to the Configuration Man-
ual CIU 888 (Part No. 4417584).
Unable to log in to CIU 888 Web inter-
face of secondary CIU 888 with con-
figured password after commissioning
of redundant system setup.
During commissioning of redundant
system setup Reset to Factory set-
tings operation is performed. During
this operation password is reset to
factory default password.
1. Log in to CIU 888 Web interface
using factory default password.
2. Change password when prompted
by system.
Unable to perform manual switchover
via Entis Pro.
Sync Link cable between CIU 888s is
disconnected.
1. Reconnect Sync Link cable
between CIU 888s.
2. Wait for initial synchronization to
be complete.
3. Check CIU 888 Web interface for
event log indicating that system is
ready for switchover.
4. Perform manual switchover via
Entis Pro.
CIU 888s in redundant system setup
are not fully synchronized.
Restart Secondary CIU 888.
Problem Cause Solution
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