Remote Programming - Triggering; Trigger Model (Remote Operation) - Keithley 2701 User Manual

8-16 Triggering
Remote programming – triggering

Trigger model (remote operation)

The following paragraphs describe how the Model 2701 operates for remote operation.
The flow chart in Figure 8-10 summarizes operation over the bus. The flow chart is called
the trigger model because operation is controlled by SCPI commands from the Trigger
subsystem. Key SCPI commands are included in the trigger model.
Idle and initiate
The instrument is considered to be in the idle state whenever operation is at the top of the
trigger model. As shown in Figure 8-10, initiation needs to be satisfied to take the
instrument out of idle. While in the idle state, the instrument cannot perform any measure
or step/scan operations.
The following commands will return operation to the top of the trigger model (idle) at the
START point of the trigger model:
•
•
•
•
What happens next depends on the state of initiation. If continuous initiation is already
enabled, the instrument will leave the idle state. SYSTem:PRESet enables continuous
initiation. Therefore, operation will immediately leave the idle state when it is sent. The
*RCL command will do the same if INITiation:CONTinuous ON is a user-saved default.
*RST disables continuous initiation. Therefore, the instrument will remain in the idle
state.
Either of the following two initiate commands will take the instrument out of the idle
state:
•
•
NOTE
ABORt
*RCL 0, 1, 2, or 3
SYSTem:PREset
*RST
INITiate
INITiate:CONTinuous ON
While in remote, pressing the LOCAL key restores continuous front panel
operation.
Model 2701 User's Manual