Rpm_Config - Keithley 4200A-SCS Reference Manual

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Section 13: LPT library function reference

rpm_config

This command sends switching commands to the 4225-RPM.

int rpm_config(int instr_id, long chan, long modifier, long value);

4225-PMU with the 4225-RPM

Standard (two-level pulsing), Segment Arb, and full arb

The 4225-RPM includes input connections for the 4210-CVU and 4200-SMU. Use this command to

control switching inside the RPM to connect the PMU, CVU, or SMU to the output.

When using the PMU with the RPM, rpm_config must be called to connect the pulse source to the

RPM output. Note that if there is no RPM connected to the PMU channel, the rpm_config command

will not cause an error. The RPM connection is cleared by the clrcon command.

rpm_config(PMU1, 1, KI_RPM_PATHWAY, KI_RPM_PULSE);

This example sets channel 1 of the RPM for pulsing.

(on page 13-199)

The instrument identification code: PMU1, PMU2, and so on

Channel number of the pulse generator: 1 or 2

Parameter to modify: KI_RPM_PATHWAY

Value to set modifier:

KI_RPM_PULSE or 0: Selects pulsing (4225-RPM)

KI_RPM_CV_2W or 1: Selects 2-wire CVU (4210-CVU)

KI_RPM_CV_4W or 2: Selects 4-wire CVU (4210-CVU)

KI_RPM_SMU or 3: Selects SMU (4200-SMU)

Model 4200A-SCS Parameter Analyzer Reference Manual

4200A-901-01 Rev. C / February 2017