Honeywell CIU 888 Troubleshooting And Maintenance Manual page 19

Part No.: 4417594_Rev11
Diagnostics
Item
RAM usage
Carrier board temperature
1-4
CPU core temperature
W&M key switch status
Write protect key status
Average CPU usage
Operational hours since last
startup
CIU version
CIU release number
Troubleshooting & Maintenance Guide
CIU 888
Description
Displays the percentage of RAM during operation.

Low threshold limit: If the percentage exceeds
90%, an event record will be created.

High treshold limit: If the percentage exceeds
95%, the RAM usage health status will be set to
'Not OK'.
Displays the temperature detected by the carrier
board sensor. The carrier board built into the
CIU 888 has a total four temperature sensors.
The temperature is checked immediately after
startup and every 2
conditions. If the temperature exceeds the low
threshold limit, the temperature is checked every 30
seconds.

Low threshold limit: If the detected temperature
exceeds 62 °C, the carrier board temperature
health status will be set to 'not OK'. For any
temperature change of 1 °C or more an event
record will be created.

High threshold limit: If the detected temperature
exceeds 75 °C, the CIU 888 will be powered
down.
Displays the CPU core temperature.
The temperature is checked every 30 seconds.

Low threshold limit: If the detected temperature
exceeds 90 °C and for any temperature change
of 1 °C or more an event record will be created.

High threshold limit: If the detected temperature
exceeds 100 °C, the CIU 888 will be powered
down.
Displays the status of the W&M lock key switch:

Open: W&M lock key switch is in open position.
W&M relevant configuration can be changed.

Closed: W&M lock key switch is in closed
position. W&M relevant configuration settings
cannot be changed.
Write Protect Key status is obtained periodically from
HAL. A check is made to see if the value is same as
that of the previous key status. Only if there is a
change from the previous value, a new value be writ-
ten into database.
2.) Any change in Write protect key status is logged
as an Audit log
Displays the percentage of the CPU that on average
is used.
Displays the number of hours the CIU 888 has been
operational since the last startup.
Displays the version of the CIU 888.
Displays the release number of CIU 888.
minutes under normal
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