Keithley 4200-SCS Reference Manual page 820

Section 9: Keithley External Control Interface (KXCI)
Table 9-11 (continued)
KXCI command strings for scope card
Clock
KXCI command: :SCOPE:CLOCK clockSource, referenceSource
Purpose: Configures the clock settings.
Parameters: clockSource
Used to select internal or external sample clock source. If set to external, the external clock input should
remain between 200MHz and the maximum non-interleaved sample rate.
referenceSource
Sets the source for the 10MHz reference clock that provides the instrument timebase.
Also see: Other
ZTEC function: SCP2:
SCP2HR:
Example: Configures clock settings of the scope: clock source = Local, reference source = PXI Backplane:
:SCOPE:CLOCK 0, 0
Envelope View
KXCI command: :SCOPE:ENVELOPE:VIEW view
Purpose: Sets the active envelope view. Use this function whenever referencing the envelope to select which view
will be used. For example, if you want to perform a calculation on an envelope, first select either the max
waveform or min waveform with this function then perform the calculation.
Parameters: view
Controls which envelope view to set active. Default view is Max.
Also see: Other
ZTEC function: SCP2:
SCP2HR:
Example: Sets envelope view to Max:
:SCOPE:ENVELOPE:VIEW 1
Horizontal
KXCI command: :SCOPE:HORIZ samplePoints, sampleRate, offsetReference, offsetTime
Purpose: Configures the horizontal/timebase settings.
Parameters: samplePoints (SCP2)
samplePoints (SCP2HR)
The number of samples in a waveform record. The total number of samples for all channels cannot
exceed the memory size.
sampleRate (SCP2)
sampleRate (SCP2HR)
Specifies the sample rate in samples/second. An invalid sample rate will be rounded down to the next
valid sample rate.
offsetReference
Specifies the position (in per unit) within a record to measure the offset time from.
9-74
= 0 Internal
= 1 External
= 0
= 4
Configure commands, Clock Query
zt450_clock
zt410_clock
Return to
= 0 Min
= 1 Max
Configure commands, Envelope View Query
zt450_envelope_view
zt410_envelope_view
Return to
= 100 to maximum memory (2MB or 32MB)
= 100 to 8MS/channel (16MS one channel interleaved)
= 2.5kS/s - 1GS/s in 1, 2.5, 5 steps, 1.25GS/s
= 2.5GS/s (1 channel interleaved)
= 10 kS/s - 200 MS/s in 1, 2, 2.5, 4, & 5 steps
= 400MS/s (1 channel interleaved)
= 0.0 to 1.0
Return to
Local
PXI Backplane
Scope commands list
Scope commands list
Section Topics
Model 4200-SCS Reference Manual
4200-901-01 Rev. S / May 2017