IVI-COM Action

IVI-COM Action

TestExec SL Training Sequences, Multithreading & IVI-COM

1

IVI Driver

IVI Driver = Interchangeable Instruments Driver

Benefits Hardware interchangeability Software interoperability Ease of use

Main IVI Drivers IVI-C IVI-COM Test Application

Vendor A

Obsolete

Vendor B


2

Presenter

Presentation Notes

Instrument driver = a set of software routines that control a programmable instrument. E.g: Configuring, writing to, reading from, triggering the instrument Why using Instrument Driver? eliminate the need to learn the programming protocol for each instrument. VXI Plug&Play does not have common programming interface Consistency, ease of use, quality, simulation, range checking, state caching, interchangeability

Accessing IVI Driver

*Download from IVI Foundation webpage


3

Why Introduce IVI in TestExec SL?

Venturi 2 Venturi S3 GPIB instruments / VXI cards LXI instruments / PXI cards SCPI commands SCPI commands / IVI drivers Supported by action “msginstXXX” No SCPI commands for PXI cards


4

Setting the System.ust File

Launch TestExec SL 7.1.2

system.ust

hwhIVI.dll Path: C:\Program Files (x86)\Agilent\TestExec SL 7.1\Bin

Auto generated and will be saved to IviConfigurationStore.xml

Software Modules are read from IviConfigurationStore.xml

1

2

3

4 5

6

7


5

Creating IVI-COM Action

1

2

3

4 5

6

hwhIVI.dll

7

8


6

Notice that there is no parameter for instrument. The instrument parameter is located at lifetime tab with parameter name “Instance Reference”.

IVI Class Driver vs IVI Specific Driver

IVI Class Driver

IVI Specific Driver


7

MyDMMVoltMeas MyDMMVoltMeas

M918x Child Assembly specific to PXI DMM

DMM Child Assembly generic to all DMM

DMM Class name generic to all DMM

M918x Class Name specific to PXI DMM and only for DC Voltage measurement

Class or Interface?


8

IVI-COM Action Inside a testplan


9

Lab 5: Create IVI-COM Actions


10

IVI Migration Editor

Migrates logical names, driver sessions and hardware assets

Only migrates IVI Data which uses IVI-COM driver and that driver must exists in the destination file

Located in C:\Program Files (x86)\Agilent\TestExec SL 7.1\Bin\txslivimigrated.exe


11

Lab 6: Running IVI Migration Editor


12

Limitation

Switching modules with IVI-COM is not fully integrated

Cannot be used with IVI-COM with more than 2 classes (eg Agilent E3631A power supply)


13

IVI-COM Action

Automotive

Transcript of IVI-COM Action