Keithley 4200-SCS Reference Manual page 770

Section 9: Keithley External Control Interface (KXCI)
VM Command: VM1...VMn channel definition
KXCI allows up to eight source-measure units (SMUs) to function solely as voltmeters. Any
channel may be used for any voltmeter function between VM1 and VM8.
system containing four SMUs, you can use SMU3 as VM7. See KXCI configuration for details.
Use the following command string to define the channel(s) used for the voltmeter(s):
VMA, 'BBBBBB'
VM
Voltmeter channel
A = n, for voltmeter channel VMn.
Voltmeter name
BBBBBB = User specified name (up to 6 characters enclosed in single quotes)
Example
The following command string defines the channel used for VM1 (specifies the name VM1):
VM1, 'VM1'
Source setup page (SS)
The command strings for the SS page are used for the following operations:
• VAR1 setup
• VAR2 setup
• VAR1' setup
• List sweep setup
• Constant SMUs setup
• Constant VS setup
• Set sweep hold time
• Set sweep delay time
In order to send the following command strings to the Model 4200-SCS, the source setup page
must first be selected by sending the following command:
SS
5. If you do not define one of the Model 4200-SCS SMUs to emulate a VM, attempts to measure voltages through the
nonexistent VM result in data values of 9.000E+37.
6. If nothing is specified after the prefix and channel number (that is, VM2 term), the channel is turned off (not used).
7. The assigned "n" value for a voltage source (VSn) or voltmeter (VMn) depends on how instruments are mapped in
KCON. Range of possible values: 1-8.
9-24
= Command string prefix
6
7
Return to Section Topics
Model 4200-SCS Reference Manual
5
For example, in a
4200-901-01 Rev. S / May 2017