Campbell-scientific LoggerNet Datalogger Support Software Instrukcja Użytkownika Pobierz pdf (Strona 77)

Section 4. Setting up Datalogger Networks

Use Reported Station Name – Enabling this check box will cause the station

name from the Status Table to be used in the header of the data files. If this

check box is not enabled, the network map station name will be used.

This check box affects only the header of the data files. It has no

effect on the filenames.

4.2.4.4.5 Clock Tab

Time Zone Offset – A value can be entered into this field to set an offset for

the datalogger’s clock from the server’s clock, any time a clock set is

performed (manual or automatic). A positive value sets the datalogger’s clock

ahead of the PC’s clock; a negative value sets the datalogger’s clock behind the

PC’s clock. This may be useful if the server and the datalogger are in different

time zones.

Enabled – Select this box to automatically compare the datalogger’s clock to

the LoggerNet server PC’s clock based on the schedule defined by the other

parameters on this tab. If the datalogger’s time differs from the server’s time

by more than a specified amount, the datalogger’s clock will be set to the

server’s time.

A separate call to the datalogger will not be made exclusively to process a

clock check. A clock check will be made when the server contacts the

datalogger for some other function.

Setting up a clock check may not be desirable. It is possible to end up with

missing data or duplicate data if the datalogger’s clock is set forward or

backward enough to skip or duplicate a data storage event. Special

consideration should be given if the PC clock automatically adjusts for

Daylight Savings Time.

Refer to Section 4.2.6, Setting the Clock, for additional information on setting

and checking the clock.

Initial Date – The initial date field is used to define the date on which the first

clock check will occur. If the date entered in this field has already passed, the

datalogger’s clock will be checked at the next scheduled data collection.

Initial Time – This field is used to define the time at which the first clock

check will occur. As with the Initial Date field, if the time has already passed,

the clock will be checked at the next scheduled data collection.

Interval – The interval at which a clock check should be performed is

specified in the Interval field. If this interval is set at 1 day, the datalogger’s

clock will be checked daily, based on the initial date and time.

Allowed Clock Deviation – The Allowed Clock Deviation field is used to

specify the number of seconds the datalogger’s clock can differ from the

server’s before the server resets the datalogger’s clock.

Check Clocks – Press this button to manually initiate a clock check of the

LoggerNet server and datalogger clocks. The two values are displayed in the

Adjusted Server Date/Time and Station Date/Time fields, respectively.

NOTE

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