The BOTTOM and TOP fields of the HS_DESC.DBF
file provided the default scale range for the Trend
Link application.
The Low and High Alarm fields of the HS_DESC.DBF
file provide the default limits range for Trend Link
used when the Highlight or Shaded option is selected for
a trace.
For server-based Trend Link applications, the notes
files must reside in a directory for which the user has
write access. This can be identified in the RTX.INI file,
section TL Settings, as illustrated in the following
example:
[TL Settings]
Note System Path = H:\HDB\PUBLIC
The three files which must reside in this directory
include:
TLNOTES.DBF
TLNOTES.DBT
TLNOTES.MDX
To switch a trend display between databases, you must
have set up logical data sets in the RTX.INI file. The
normal Trend Link installation procedure does this for
you by creating a logical data set from the databases it
finds at the time of installation. If you subsequently
add or delete databases or simply want to modify the
databases found in the logical data set list, you can do
this easily by editing the RTX.INI file in the
section TL Logical Data Set Groups.
Once you have the logical data set
specified, when you add a trace to a trend display,
select the logical data set rather than the specific
database. Now, from the Preferences menu, you can
select Logical Data Sets and then choose the
database to be used.
Note that you can specify several different logical data
sets in your RTX.INI file and these will appear in the
Trend Link selection menus. An example of this is:
[TL Logical Data Set Groups]
RTX Databases=Minute, Hour, Shift, Day
RTX Archives=AMinute, AHour, AShift, ADay
The TLLOCAL.INI file is used by Trend Link to save
run-time information from one execution to the next. For
server-based Trend Link applications, this file must
reside on each user's local hard disk. The simplest way
to do this is to specify the location in the RTX.INI
file, section TL Settings, as follows:
