Chapter 3 ________________________________________________________________ Operation
VAISALA _______________________________________________________________________ 89
Figure 44
Data Item Window for PWD11A
The columns in Figure 44 above are explained below:
Name
= The
Name
column shows the data item name. One ROA
object includes several data items.
The data item named
Location
shows the location code
of the object.
Type
= The
Type
column contains programming information
intended for Vaisala internal use.
Statuses = The
Statuses
column is important for ensuring the
quality of data in the system and in end-user
applications.
The information in the
Statuses
column is updated
several times a minute. When the connection between a
sensor and the CDU is broken, the information is no
longer updated, and the status changes to
Old
and finally
Missing
. If the line is working properly, but the value
measured by the sensor is out of the defined validity
range, the status is
Invalid
. These statuses correspond
with the ones used in end user applications, for example
Weather View.
Value
= The
Value
column shows the data item value.
