Specifications

13 – Configuring Reports
274 R400
Using Point Values
The most common values used in custom reports are point values.
Reading a Point Parameter from the Server Database
Three report definition file entries are provided for reading and writing points
values:
Storing Values in Point Parameters
There is one entry for storing values in the point parameters:
Performing Calculations
Two entries are provided so that calculations can be performed with Free Format
variables:
F = Fetch from point Reads a specified point parameter into a Free Format
variable. The format to be used when the variable is
printed in the report can be specified. When reading
history parameters, it is also possible to read multiple
history values into successive Free Format variables at
once by specifying an offset into the history file and
the number of history samples.
A = Acquire field value Is identical to “fetch from point” except that the point
parameter is scanned from the field before reading
the value. This entry is used to obtain an up-to-date
field value if required.
X = Demand point
processing
Is identical to “acquire field value” except that
processing of the point is forced regardless of
whether or not the point value has changed. This
entry is used to force any algorithms attached to the
point to be to executed.
G=“Give to Point” Stores a value in a Free Format variable in the
specified point parameter.
plscpcg.book Page 274 Monday, May 28, 2001 10:11 AM