Section 3: Keithley Configuration Utility (KCon) Model 4200A-SCS Setup and Maintenance User's Manual
3-20 4200A-908-01 Rev. A December 2020
String reported in response to ID query
KI4200A Vx.x.x (where x.x.x is the
version number)
Maximum number of sweep points
Possible instrument configurations
1.0 pA source/measure-range capability
(with preamplifer on SMU)
The fundamental difference is that the 4200A-SCS hardware is modular, while the Keysight 4145B
hardware is fixed, as shown in the following table.
Keithley Instruments 4200A-SCS
Source measure units (SMUs)
You can configure any SMU to function as a VM. Up
to 9 VMs are possible.
You can configure any SMU to function as a VS. Up
to 9 VSs are possible.
KCon manages these hardware differences by allowing you to assign source-measure unit, voltage
monitor, or voltage source functions to any 4200A-SCS SMU, as shown in the following table.
KXCI SMU (Source measure unit) function assignment
SMU (source measure unit)
Instructs the 4200-SMU, 4201-SMU, 4210-SMU, or 4211-SMU to emulate
a Keysight 4145B Source Measure Unit.
VM1...VM8
(voltage monitor)
Instructs the 4200-SMU, 4201-SMU, 4210-SMU, or 4211-SMU to emulate
the capabilities of a Keysight 4145B VM1 or VM2 and additional voltage
monitors (VMs). You can map up to eight VMs to SMUs. You can assign a
VM any number from 1 to 8, regardless of the number of SMUs in the
system. Each VM number must be unique.
VS1...VS8
(voltage source)
Instructs the 4200-SMU, 4201-SMU, 4210-SMU, or 4211-SMU to emulate
the capabilities of a Keysight 4145B VS1 or VS2, respectively and
additional voltage sources (VSs). You can map up to eight VSs to SMUs.
You can assign a VS any number from 1 to 8, regardless of the number of
SMUs in the system. Each VS number must be unique.