Keithley 4200A-SCS

Section
9: Keithley External Control Interface (KXCI) Model 4200A-SCS Parameter Analyzer
Reference Manual
9-64 4200A-901-01 Rev. C / February 2017
TO
This command sets the trigger output parameters for pulse delay and trigger polarity.
Usage
TO A, BBB.BBBB, C
A
Pulse card channel: 1 to 8; the largest value is the number of channels in the
system
BBB.BBBB
Pulse delay in seconds:
• 0.0 to (Period − 10e-9)
•
Default: 0.0
C
Trigger polarity
• Negative: 0
• Positive: 1
•
Default: 1 (rising edge)
Corresponding LPT library functions
pulse_delay (on page 13-141)
pulse_trig_polarity (on page 13-154)
pulse_output (on page 13-146)
Details
This command sets pulse delay and trigger polarity. The polarity setting affects both channels of a
pulse card. For example, setting channel 1 of pulse card 1 to positive trigger polarity to also sets the
trigger polarity of channel 2 to positive. For the trigger delay parameter, each available channel can
have its own unique delay setting.
Example
TO 1, 2e-6, 1
This command string sets the pulse delay for channel 1 of pulse card 1 to 2 µs and selects positive trigger
polarity.
Also see
None