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Menu 2 – Trending
The trending screen (Figure 20) displays the setpoint
temperature, process temperature, expansion valve,
and optional hot gas bypass valve (if present)
resisters for easy analysis of the system operation.
Trending is always enabled and always running.
Figure 20 – Trending Screen
Menu 2 – Logging
The HMI is constantly logging key registers internal
to the HMI. In the event that the data and/or alarm
logs would need to be analyzed, the data can be
exported to an external thumb drive.
Data is logged every two seconds in a FIFO
methodology. A total of 24 hours is maintained.
Figure 21 – Logging
24
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