How can I get the 4200-SCS to control a remote GPIB instrument (meter, power supply, prober, etc) that is not listed as a supported external instrument in KCON (Keithley CONfiguration utility)?

You are not limited to the range of KCON-supported external instruments. To control an external instrument over GPIB or RS-232, the 4200-SCS needs to have a piece of code, called driver, written for that instrument. The code must be written in the KULT editing / compiling environment (installed on the 4200-SCS), using standard C programming syntax. Programming in the KULT environment is well documented (including simple tutorials) in the 4200-SCS Reference Manual, Chapter 8.

To simplify this task, we provide source code for all existing KCON-supported instrument drivers. You can modify an existing driver to suit your particular instrument. Also, you can contact a Keithley applications engineer for some basic help and guidance in developing your own driver.