Campbell LoggerNet, Инструкция по эксплуатации, Страница: 150 / 580

Section 5. Real-Time Tools
If clock updates and display updates are paused while connected
to a datalogger, the connection may time out and terminate the
connection. NOTE
There are three Numeric Display screens and three Graphical Display screens.
Each screen is launched as a separate window that can be moved or resized as
needed. The display screens are not minimized if the Connect Screen is
minimized, but they can be minimized independently.
5.1.7.1 Data Display Limitations
There are limits to the number of Input Locations that can be retrieved for
display from some of the dataloggers. Older mixed-array dataloggers can
transfer 62 input location values at a time. The newer mixed-array dataloggers
can transfer up to 500 input locations. The CR10X-TD family of dataloggers is
limited to a maximum of 500 input locations by packet size and record format.
CR5000, CR1000, CR3000, CR800, and CR9000 dataloggers don’t have
practical limits for the number of Public Variables that can be requested or
displayed.
Both mixed-array and CRBasic dataloggers will transfer only the requested
input locations or public variables. However, CR10X-TD type dataloggers
must transfer the entire input locations record in one packet. Because of packet
size, if more than 500 input locations are used in the datalogger program the
record cannot be collected.
5.1.7.2 Numeric Display Screens
Data values collected from the datalogger can be displayed in numerical format
on the Numeric Displays. Pressing the Num Display button and selecting one
of the numbered displays from the drop-down list will bring up a Numeric
Display screen. Each of the three Numeric Displays is configured separately,
and all three can be active at the same time if desired. The settings and
selected data values for a display are saved when the display, Connect Screen,
or LoggerNet is closed. The display settings for each datalogger are also saved
independently, so a different datalogger will have different settings.
An example of a Numeric Display is shown below. If a Numeric Display is
already active but hidden behind other windows, selecting it from the drop-
down list will bring it to the front.
A mixed-array datalogger’s final storage data must be collected
by LoggerNet before it can be displayed.
NOTE
When a value declared as a Long is being displayed,
–2147483648 (the most negative long value) is used to indicate
NAN (Not A Number).
NOTE
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