Delcon - Keithley 4200A-SCS Reference Manual

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Section 13: LPT library function reference

delcon

This command removes specific matrix connections.

int delcon(int InstrTermID, int exist_connect, [int exist_connectn, [...]] 0);

exist_connect

exist_connectn

All connections to each terminal or pin listed are disconnected. Before disconnecting the pins or

terminals, the delcon command clears all active sources by calling the devclr command.

If GND is included in the list, all ground connections are removed. If a SMU remains connected, GND

must be reconnected using addcon or an error is generated when the first LPT library command after

the connection sequence executes.

A programmer can run a series of tests in a single test sequence using the addcon and delcon

commands together without breaking existing connections. Only the required terminal and pin

changes are made before the next sourcing and measuring operations.

double i1, i2;

conpin(3, GND, 0);

conpin(1, SMU1, 0);

conpin(2, SMU2, 0);

forcev(SMU1, 1.0);

forcei(SMU2, 0.001);

measi(SMU1, &i1);

delcon(SMU2, 0); /* Remove SMU2 from the circuit */

forcev(SMU1, 1.0); /* because delcon cleared sources. */

measi(SMU1, &i2);

(on page 13-198)

(on page 13-199)

(on page 13-199)

(on page 13-200)

(on page 13-67)

Model 4200A-SCS Parameter Analyzer Reference Manual

The instrument terminal ID, such as SMU1, GNDU, or PMU1CH1

A pin number or an instrument terminal ID

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