Keithley 2651A

Model 2651A High Power System SourceMeter® Instrument Reference Manual Section 5: Remote commands
2651A-901-01 Rev. A / March 2011 5-5
Data queue
Use the data queue commands to:
• Share data between test scripts running in parallel
• Access data from a remote group or a local node on a TSP-Link
®
network at any time
The data queue in the Test Script Processor (TSP
®
) scripting engine is first-in, first-out (FIFO).
You can access data from the data queue even if a remote group or a node has overlapped
operations in process.
dataqueue.add()
(on page 7-38)
dataqueue.CAPACITY
(on page 7-39)
dataqueue.clear()
(on page 7-39)
dataqueue.count
(on page 7-40)
dataqueue.next()
(on page 7-41)
Digital I/O
The digital I/O port of the Model 2651A can control external circuitry (such as a component handler
for binning operations). The I/O port has 14 lines. Each line can be at TTL logic state 1 (high) or 0
(low). See the pinout diagram in Digital I/O port for additional information.
There are commands to read and write to each individual bit, and commands to read and write to the
entire port.
digio.readbit()
(on page 7-43)
digio.readport()
(on page 7-43)
digio.trigger[N].assert()
(on page 7-44)
digio.trigger[N].clear()
(on page 7-44)
digio.trigger[N].EVENT_ID
(on page 7-45)
digio.trigger[N].mode
(on page 7-46)
digio.trigger[N].overrun
(on page 7-47)
digio.trigger[N].pulsewidth
(on page 7-48)
digio.trigger[N].release()
(on page 7-48)
digio.trigger[N].reset()
(on page 7-49)
digio.trigger[N].stimulus
(on page 7-49)
digio.trigger[N].wait()
(on page 7-51)
digio.writebit()
(on page 7-51)
digio.writeport()
(on page 7-52)
digio.writeprotect
(on page 7-53)