ERL tesla lite, Руководство пользователя, Страница: 123 / 288

8 Configuring the Recorder
D03283R01.10 TESLA LITE User Manual 8-45
Choose channels to be trended by clicking on one of the (larger) spaces in the
trend grid. Clicking on the arrow that appears, lists all the available channels
in the list box that appears adjacent to the space you originally clicked. Alter-
natively, use the selection tree that appears to the immediate left of the trend
grid. Use the tree’s expansion buttons to locate the desired channel, then drag
and drop your selection on the grid.
You can control how the data is accumulated between logged values for each
trended value. The
Process Options are as follows:
You can record the same channel with more than one Process Option, but you
can not record the same channel with the same Process Option more than once.
When you have defined a trending process, a long-term event log is started au-
tomatically.
If you wish to have the long-term event log without trending any data, define
a trend without any channels in it. A daily limit of 1000 events can be stored in
the trend log.
Table 8.18: Trend Accumulation Modes:
Damped (default) Logs a value representative of the measurements dur-
ing the interval.
Undamped Logs the last value measured during the interval.
Avg Logs the average measured value over the interval.
Min Logs the minimum measured value over the interval.
Max Logs the maximum measured value over the interval.