Keithley 2302 User Manual

6-2 External Triggering (Model 2306-VS Only)
Overview
NOTE Refer to the hardcopy included with the shipment of the Model 2306-VS External
Trigger Functionality Flowchart for more information on external triggering.
The Model 2306-VS has four rear panel mounted BN
C connectors (two inputs and two out-
puts) allowing external triggering and handshaking for both channels.
The triggering capability
adds the ability to automatically step through different voltages and take measurements at each
step under the control of external triggering.
Model 2306-VS features
Key Model 2306-VS features include.
• Four rear panel mounted BNC connectors:
– Trigger In: Two connectors for Channel #1 and #2 triggering
– Trigger Out: Two connectors for Channel #1 and #2 trigger handshaking
• Externally triggered voltage step feature allowing up to 20 user-adjustable output voltage
se
tpoints.
• Externally triggered measurement feature allo
wing voltage, current, pulse current, or
DVM measurement readings.
• Channels can be triggered sequentially or in parallel.
• Automatically enable a measurement to be taken during each voltage step (readings are
stored until requested).
• A single trigger in pulse may be configured to control both channels.
Typical trigger sequence
A typical trigger sequence is shown in Figure 6-1 (numbers on first step correspond to the
steps below). The exact sequence will depend on how the instrument is programmed; see the
“Command sequences” topic later
in this section. The sequence is as follows:
1. Sending TRIG:EXT:ENAB or TRIG:EXT:ENAB:INIT will generate a trigg
er output
pulse when the instrument is ready for trigger in pulses.
2. The trigger input pulse applied to the
TRIGGER IN jack is detected.
3. The voltage steps to the next value (if voltage stepping is enabled).
4. The unit waits for the programmed delay period.
5. Measurements are taken (if enabled).
6. The unit outputs the trigger output pulse on the TRIGGER OUT jack to indicate that the
step
has been completed.
7. The complete sequence in steps 2-6 repeats for the programmed number of steps
(20 maximum).
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Keithley 2302 Specifications

General

Brand	Keithley
Model	2302
Category	Power Supply
Language	English