Model 2700 Multimeter/Switch System User’s Manual Triggering 8-3
Idle
When not scanning and in the continuous trigger mode (factory default setup), the
instrument will not stay in idle. Operation will continuously fall through the idle state and
proceed to the Event Detection block of the trigger model. When in the one-shot trigger
mode (*RST default setup), the TRIG key must be pressed to take the instrument out of
idle. After each measurement, the instrument returns to idle and requires the TRIG key to
be pressed to continue. The FACT (factory) default setup or *RST default setup is selected
from the SHIFT > SETUP menu (see
“Defaults and user setups,” page 1-20).
When scanning, the unit is considered idle at the end of a scan operation when the reading
for the last channel remains displayed. To restore triggers, press SHIFT and then HALT.
See
Section 7 for details on scanning.
Control source and event detection
The control source holds up operation until the programmed event occurs and is detected.
The control sources are described as follows:
• Immediate — With this control source, event detection is immediately satisfied
allowing operation to continue.
• External — Event detection is satisfied for any of the following three conditions:
• An input trigger via the Trigger Link line EXT TRIG is received.
• The front panel TRIG key is pressed. (The Model 2700 must be taken out of
remote before it will respond to the TRIG key. Use the LOCAL key or send
GTL over the bus.)
• Trigger command (*TRG or GET) is received over the bus.
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