-SCS Parameter Analyzer Reference Manual Section 9: Keithley External Control Interface (KXCI)
4200A-901-01 Rev. C / February 2017 9-13
GPIB command reference
GPIB commands to control instrument operation are grouped as follows:
• System mode commands: This comprehensive set of commands allows you to use all the
source-measure capabilities of the SMUs installed in 4200A-SCS.
• User mode commands: This limited set of commands allows you to perform basic source-
measure operation.
• Common commands: These commands are valid in any operating mode.
These commands include 4200A only commands, which are valid only while using the 4200A
command set instead of the 4145 Emulation command set.
Numeric values can be entered in fixed decimal format (for example, 0.1234) or floating decimal
format (for example, 123.4e-3). Maximum number of characters for the value is 12. The maximum
number of digits for an exponent is 2.
System mode commands
Most system mode commands are divided into groups, known as pages. In order to use these
commands, the appropriate page has to be selected. System mode commands are grouped as
follows. The command to select each page is shown in parentheses.
• Channel definition page (DE)
• Source setup page (SS)
• Measurement setup page (SM)
• Measurement control page (MD)
• Data output and file commands (valid in any system mode page)
• Channel mapping command
• Fixed source ranging command
Channel definition page (DE)
Use the command strings for the DE page for the following operations:
• SMU channel definition
• VS1...VSn channel definition
• VM1...VMn channel definition
To send the channel definition command strings to the 4200A-SCS, you must select the channel
definition page by sending the command:
DE
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