4. Datalog
The built-in data logger stores operation data, sensor data, alarms and events for further analysis using the
BEST Software.
The data are stored in the data logger flash memory at regular intervals together with counters and statistics
data collected and summarized over time. The lifetime of the different data varies.
The datalog contains the following type of entries
Alarms
Events
Datalog information
Periodic data
Statistics and counters
4.1.1 Alarms
Information logged:
Timestamp
Alarm code and text
Severity, can be Fault, Critical or Warning
Set or Clear
Critical and warnings have Set and Clear entries. E.g.
4301: Motor Temperature High - Warning - Set
4301: Motor Temperature High - Warning - Clear
For faults only Set entries are found. E.g.:
3431: High Pressure Switch - Fault - Set
When all faults are successfully reset and the CM-SW-01 is no longer in fault state, there is an entry like
this:
0: No Fault - Fault - Clear
Lifetime of alarm entries: 365 days.
4.1.2 Events
Possible events:
Power Up
Power Down
Extern alarm reset
Compressor Start
Compressor Stop
Service tool connect
Lifetime of events: 30 days
4.1.3 Datalog information
If bad sections are found in the datalog storage during download, an event is entered, telling that this has
happened. If possible, information is added about the number of log entries that was lost.
4.1.4 Periodic data
Data are stored on a regularly basis.
10 seconds interval when the compressor is running, 60 seconds when stopped.
3 seconds interval for fault traces.
Lifetime of events: 1 – 3 weeks