Specifications

Customizing the System 55Chapter 3
Adding Instruments to the system.ust File
The Agilent TS-5400 Test System provides a standard set of pre-installed
instruments or modules. These instruments are identified to the test system
in the factory-provided ‘
system.ust‘ file. This file also lists the aliases
and wire nodes used in the system, as shipped from the factory.
When instruments are added to the system, you must add them to the
system.ust file so that the software can recognize and use the instrument.
Modifying the
system.ust File
The system.ust file was originally created at the factory and
lists/describes each instrument, alias, and wire node in the system as shipped
from the factory. You should make a back-up copy of the original
system.ust as a reference copy before making any modifications.
The system.ust file can be modified in one of two ways, using the System
Configuration Editor or the TestExec SL Topology Editor. The System
Configuration Editor is the recommended method and easier to use since it
automatically generates wires and aliases whenever a module/instrument is
added.
Using the System
Configuration
Editor
The System Configuration Editor is available from the TestExec SL toolbar
and as a shortcut in the Desktop of the system controller. When the editor is
opened, it automatically selects the
system.ust file in the default “bin”
directory. Use the open file function to open a different
system.ust file.
Using the Topology
Editor
The Topology Editor Is invoked when you purposely open the system.ust
file (or another .ust file) from TestExec SL. Refer to the TestExec SL Online
Help for details on using the Topology Editor.
General Guidelines The following guidelines are for use in modifying the system.ust file
using the TestExec Topology Editor.
• Nodes are associated with a module (for example, External Trigger or
External Clock) or individual channels on a module (for example,
mcm:VISrcHi and mcm:VISrcLo). The nodes can be added or deleted
independently.
• After specifying an instrument, you must save the system.ust file,
close the file, and then reopen the file to view all of the aliases,
channels, and wire connections associated with the newly installed
module.
• For those instruments that can be directly connected to the Agilent
E6171 Measurement Control Module (MCM), the system asks if the
instrument to be installed is to be connected to the first MCM before it
automatically wires the module. If it is the first instrument then wiring
is generated to connect to the MCM. If it is not the first instrument, no
automatic wiring is generated and you must specify the wiring.
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