Remote Operation
Manual 31470, Rev. E, April 2001
3-9
SENSe:TRIGger functions apply only to Giga-tronics Peak Power Sensors. The DELay and LEVel
functions of these Peak Power Sensor controls apply to the 80350A Peak Power Sensors, not the 80340
Peak Power (Triggerable Pulse) Sensors. The AVERage and CORRection commands apply to all 80300
Series CW & Peak Power Sensors.
STATe ON OFF controls for COUNt and DELay, above, are not shown.
3.2.8
Trigger Subsystem Commands
The Trigger Subsystem is divided into two sections; Instrument Measurement Event Triggering, and
Special Triggering Configuration commands for the fast-reading buffered data modes (Burst and Swift
modes). The Trigger command tree is illustrated in Figure 3-4.
The query form of these commands, TRIGger? with the appropriate modifier inserted ahead of the ?, will
return the instrument’s current configuration status. This can be used to verify triggering configuration
or return status information following command errors which are commonly caused by using illegal
configuration commands during Swift or Burst Modes.
SOURce:IMMediate triggering allows the 8650A to control measurement triggering; this is the default
configuration. External triggering is performed using a TTL signal input. BUS allows software controlled
triggering.
COUNt refers to the number of data points to store in the meter’s 5000 reading buffer (128,000 with
option 02) before the measurement data is requested by the controller.
DELay controls the time interval between Burst Mode data samples, and the MODE command controls
whether the data is taken after receipt of the instrument trigger or if data is collected (in a FIFO buffer)
immediately preceding receipt of an instrument trigger.
Figure 3-4: TRIGger Subsystem Command Tree
General Instrument
Measurement Triggering
Burst or Swift Mode
Data Acquisition Controls
TRIG
ger
COUN
t
DEL
ay
MODE
SOUR
ce
HOLD
IMM
ediate
EXT
ernal
BUS
Summary of Contents for 8650A Series
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