Ametek SEQUOIA Series - Figure 6-3: Measurement Acquisition Trigger Model

Sequoia Series 173
6.6.8 Measurement Trigger System Model
Figure 6-3 is a model of the measurement trigger system. The rectangular boxes represent states.
The arrows show the transitions between states. These are labeled with the input or event that causes
the transition to occur.
IDLE STATE
INITIATED STATE
DATA ACQUISITION
TRIGGER RECEIVED
INIT[:IMM]:ACQ
ABOR
*RST
*RCL
Figure 6-3: Measurement Acquisition Trigger Model
6.6.9 Initiating the Measurement Trigger System
When the power source is turned on, the trigger system is in the idle state. In this state, the trigger
system ignores all triggers. Sending the following commands at any time returns the trigger system to
the Idle state:
ABORt *RST *RCL
The INITiate commands move the trigger system from the Idle state to the Initiated state. This enables
the power source to receive triggers. To initiate for a measurement trigger, use:
INITiate:IMMediate:ACQuire
After a trigger is received and the data acquisition completes, the trigger system will return to the Idle
state. Thus it will be necessary to initiate the system each time a triggered acquisition is desired.
Note: You cannot initiate measurement triggers continuously. Otherwise, the
measurement data in the data buffer would continuously be overwritten by each
triggered measurement.