Honeywell CIU 888 Troubleshooting And Maintenance Manual page 31

Problem
Non-configured gauge is not scanned
from CIU 888 part of site scan from
Engauge.
Level value in mm and Pressure
2
value in Kgf/cm are scaled up and
shown incorrectly from CIU 888.
CIU System Status/ Ring of light
turned to Orange color indicating a
Warning: Compact flash data free
space is less than the required limit.
CIU System Status/ Ring of light
turned to Red color indicating a Fatal
failure: Compact flash data free space
is less than the required limit.
CIU 888 stopped functioning including
field and host communication.
Density dip does not work, when Field
port has default timeout configured
(250ms).
After sending configuration to CIU
888 using Ensite Pro, scanner does
not start and CIU System Status/Ring
of light turned to Red colour indicating
a Fatal failure.
While migrating from R103.2 to
R120.1, the verify configuration from
CIU 888 service tool reports "mis-
match in the configuration"
Diagnostics difference in LCD and
Web Interface for TRL/2 Field port.
Deletion of tank fails in Service tool
when user defined modbus map is
configured and then changed the host
port protocol from Modbus RTU to
CIU - GPU.
Modbus TCP/IP open port failure
message in events.
CIU 888 ring of light goes to red indi-
cating fatal failure during operation.
Part No.: 4417594_Rev11
Software Troubleshooting and Error Messages
Cause
Field port and gauge are not config-
ured.
The Modbus scaling factor for these
parameters is increased during data-
base configuration activity.
Compact flash data free space is less
than the Low limit of 300MBs.
Compact flash data free space is less
than the Critical limit of 100MBs.
Density dip command is aborted due
to timeouts on 1200 baud rate BPM
lines.
Orphan gauge for example. a gauge
not linked to a Tank (among linked
Tanks/gauges) and Field port is avail-
able in the configuration.
CRCs are updated within CIU 888 as
part of upgrade. However service tool
is not updated with these new CRCs.
Improper configuration of TRL/2 data
input.
IP address not configured properly for
modbus TCP/IP ports.
During update configurations CRC
values are not getting updated.
Troubleshooting & Maintenance Guide
CIU 888
Solution
Configure the field port to which the
gauge is connected.
Reset the scaling factors for these
entities on the host ports using
Ensite Pro.
Clear the log files. Go to https://
192.168.1.1 enter credentials, click
clear logs and restart CIU 888.
Increase the field port timeout to 300-
350 ms.
Check for the orphan gauge and
delete the orphan gauge in the Ensite
pro before sending the configuration
to CIU 888.
Ignore the message and perform
update configuration.
Check device slave ID is configured in
TRL/2 data input under the Field port
and configure it properly.
1. Change the protocol type back to
modbus RTU.
2. Change the modbus mapping to
user specified.
3. Remove the tank which needs to
be deleted from Service tool and
add it to available list in user
defined modbus map.
4. Delete the tank from the Service
tool.
When modbus server is enabled for
modbus TCP/IP port, do IP configura-
tion properly.
Perform factory reset via LCD and
send the configuration to CIU again.
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