Walchem WebMaster, Инструкция по эксплуатации

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6.44 Manual Datalog
You may either download data files automatically, or manually. To have the data automatically
sent to you via email, set up the data log in the Auto Reporting page (See Section 6.43).
The Manual and Auto Reporting data logs are dynamically connected to each other. For each data
log, select the parameters to log, and the maximum time frame of the data log and submit the
changes. The controller will calculate the minimum interval between data points based on
available memory, memory required for each data log, and the settings for each data log.
If your selections for this log use all of the memory available (25 MB), the other log will be
disabled. Check the other log after making changes to this log to ensure that those revised settings
are acceptable. If not, you may have to shorten the log duration for one or both of the logs in order
to get more frequent data points
Note that if you have a data log building, and you change the parameters to log, log duration or
logging interval, any data previously gathered will be lost! If the changes to one log results in less
memory being available for the other data log, the other log’s minimum logging interval may
change, erasing the other data log as well.
The data is collected into a log file until the end of the maximum duration, or until a user
downloads the file, whichever comes first. Once the log file is downloaded, it is erased and a new
log file is started. If the file is not downloaded by the end of the maximum duration, the log file is
saved and a new file is started. No more than two files may be stored at any time, so if the file is
not downloaded by the time the second file is full, the first file is erased. Refer to the chart below.
Maximum Log Duration
Select the maximum duration of the data log by selecting the time frame from the pulldown list.
The choices are 1 Month, 2 weeks, 1 week, 1 day, 12 hours and 1 hour.
Logging Status
This menu is informational only, telling you if the auto report data log is enabled or not. Since the
auto report log and the manual logs are tied together, if one log is reconfigured and uses up all
available memory, the other log will be disabled.
Minimum Logging Interval
The minimum time between data points will be calculated based upon the number of parameters
selected to log between the Auto Report Datalog and the Manual Datalog, and the log durations.
Logging Interval
Type in the text box the time required between data points. If this is set to a particular value, and
changes to the logging parameters results in a larger minimum interval, the time previously set will
be replaced by the new minimum interval.
Delete Log After Download
If you want the datalog file to be automatically deleted once it is saved, leave this selected as
‘Enable’.
Datalogging Mode
If data needs to be logged at all times, select
Normal
.