Step 4. Set Gpib Address; Step 5. Configure The Instrument Connection Scheme; Step 6. Assign Switch Cards To Mainframe Slots - Keithley 4200A-SCS Reference Manual

Appendix A: Using switch matrices

Step 4. Set GPIB address

The GPIB address setting in the properties must match the actual GPIB address of the mainframe.
The address for the switch system mainframe is briefly displayed during its power-on sequence.
To set the GPIB address:
1. Select the GPIB Address from the list. Addresses that are in use are displayed with asterisks (*)
next to them. The range of addresses is 0 to 30 (GPIB address 31 is reserved as the 4200A-SCS
controller address). If the selected GPIB address conflicts with the GPIB address of another
system component, a red exclamation-point symbol (!) is displayed next to the selected address.
2. Select Save to save the change.
You can programmatically read the GPIB address and other instrument properties from the system
configuration using the LPT library getinstattr function. Proper use of getinstattr allows you
to develop user libraries that are independent of the configuration. For more information, refer to
Keithley User Library Tool (KULT)

Step 5. Configure the instrument connection scheme

To configure the instrument connection scheme:
1. Select the Connection Scheme from the list:

If you are connecting the instrumentation to matrix rows and the device under test (DUT) to
matrix columns, select Row-Column.

If all connections (instrumentation and DUT) are made to matrix columns only, select
Instrument Card.
2. Select Local Sense or Remote Sense:

For 2-wire connections to the DUT, select Local Sense.

For 4-wire connections to the DUT, select Remote Sense.

Step 6. Assign switch cards to mainframe slots

To assign switch cards to mainframe slots:
1. For each slot that contains a matrix card, select the model number of the matrix card.
2. For each slot that is empty, select Empty.
You cannot mix matrix card models. For example, if you set slot 1 to Keithley 7174 Low Current
Matrix Card, all other slots can only be set to the 7174 or Empty. To select a different model, you
must set all slots to Empty and then make the new selection.
A-28
Model 4200A-SCS Parameter Analyzer Reference Manual
(on page 8-1).
4200A-901-01 Rev. C / February 2017