Release Notes for Keithley 2520 Pulsed Laser Diode Test System Driver (2520-850A01).

1. Models Supported: 2520 Pulsed Laser Diode Test System.

2. This driver works with the following software environments:

LabVIEW 5.1,
LabVIEW 6.0,
LabWindows/CVI 5.5,
Microsoft Visual C++ 6.0,
Visual Basic 6.0.
And any other environments that support Win32 DLL's.

3. This document provides additional information for the installation and use of
the 2520-850A01 Keithley 2520 Pulsed Laser Diode Test System Driver.

Default installation installs the complete driver for all the supported environments.

The Labview Driver gets installed under the LabView->instr.lib directory, if Labview
is installed on the machine, otherwise, it gets installed under the
Keithley Instruments->Ke2520 directory.

The CVI Driver gets installed under the VXIPnp->Ke2520 directory.

For use with other Win32 environments the required Dll is installed in VXIPnp->bin directory.


For Visual basic Users, more help is provided in the Readme_2520.doc.

TWo help files gets installed in Keithley Instruments->Help directory.
Ke2520c.hlp is for C users and Ke2520.hlp is for VB Users.



4. Installation Issues:

Configuring Passport Drivers:
Passport Drivers are used by the VISA software to communicate with specific computer hardware,
such as GPIB cards and Serial ports. After installing the 2520-850A01 driver,
and before attempting to use it, you must verify the proper Passport configuration.
You do this using the Keithley Configuration Panel. Open the Panel by selecting
Start->Programs->Keithley Instruments->Keithley Configuration Panel. Click on the Passports
menu item.

If you are using a Keithley Instruments (CEC) GPIB card in your computer, make
sure the "VISA Passport library for CEC GPIB controllers" is checked. Uncheck
all other Passports. Select Save from the file menu and close the Panel.

If you are using a Keithley Instruments (INES) PCMCIA GPIB card in your
computer, make sure the "VISA Passport library for INES GPIB controllers"
is checked. Uncheck all other Passports. Select Save from the file menu and
close the Panel.

If you are using a National Instruments GPIB card in your computer, make
sure the "VISA Passport library for GPIB controllers" is checked. Uncheck
all other Passports. Select Save from the file menu and close the Panel.

If you are using a serial port to communicate with your instrument, make
sure the "VISA Passport library for Serial" is checked. Uncheck
all other Passports. Select Save from the file menu and close the Panel.


5. Known Problems:

None

6. Missing Functionalities:

The following is a list of functionality that is in the 2520 family of
instruments but this driver doesn't support.The user can use the Ke2520_WriteInstrData
and Ke2520_ReadInstrData functions to send and receive commands/data to the instrument.

Not supported in the Model 2520 driver
User defined Math expressions (except enable/disable math)
Display :DISP:WIND[1/2]:DATA? (query data on top portion of display )
:FORMat:SREGister (select data format for reading status event registers )
:SREGister ?
:BORDer
:BORDer ?
:ELEMents : TIME
: STATUS
:CALC:CALC, TIME, STATUS
:CALC?
:TRACE?
:ELEM?
:SOURce4
:SOURce4 ?

:OUTPut[1] :INTerlock :TRIPped ?
:STAT?
All the queries of SENSE[1/2/3].
Source: All the Queries.
Also the span and center points are not supported.
Pulse Transition control.
Sweep: Spacing and Direction.

:STATus:PRESet
:QUEue:ENABle and ENABle ?
:DISable and DISable ?

:SYSTem:VERSion ?
:ERRor:ALL, COUNt ?,CODE ALL ?
:KEY and Key ?
:LOCal :Remote : RWLock
and all the queries except :ERR?
:TRACe:DATA:VAL?

Trigger Commands:
Timer Interval and all queries except :TRIG:COUNt?


7. Notice:

Keithley 2520 Pulsed Laser Diode Test System Driver (2520-850A01) is Copyright (c) 2000-2001, Keithley Instruments, Inc. All
rights reserved.

The VISA software supplied with Keithley 2520 Pulsed Laser Diode Test System Driver (2520-850A01) is Copyright (c) 2001 National
Instruments Corporation. All Rights Reserved.