User manual

Front Panel Operation
3-68 2001-900-01 Rev. K/ August 2010
For this example, the Models 2001 and 7001 are configured
as follows:
Model 2001:
Idle State:
Bench reset = :INIT:CONT ON*
Arm layer:
Arm source = Immediate*
Arm count = 1*
Arm trigger control = Acceptor*
Scan layer:
Scan source = Immediate*
Scan count = Infinite*
Scan trigger control = Acceptor*
Measure layer:
Measure source = External
Measure count = Infinite*
Measure trigger control = Acceptor*
* Indicates that the setting is the BENCH RESET (and
factory) default condition.
Model 7001:
Idle State:
Reset = :INIT:CONT OFF*
Scan List = 1!1-1!10,
Arm layer:
Arm spacing = Immediate*
Arm count = 1*
Arm trigger control = Acceptor*
Scan layer:
Scan spacing = Immediate*
Number of scans = 1
Scan trigger control = Acceptor*
Channel Layer:
Channel spacing = External
Number of channels = Use Scanlist length*
Channel trigger control = Source*
* Indicates that the setting is the RESET (and factory)
default condition.
Notice that the Model 2001 is reset to BENCH defaults. With
this selection, the multimeter stays armed. Since the arm
source and scan source are set to Immediate, the Model 2001
waits in the measure layer for a trigger.
With the Channel Trigger Control of the Model 7001 set for
Source, scan operation initially bypasses the need for an
external trigger to close the first channel. Since arm spacing
and scan spacing are set to Immediate, the scan starts as soon
as the scanner is taken out of the idle state by pressing the
STEP key. When the front panel STEP key is pressed:
• The scanner arms and closes the first channel.
• After Channel 1!1 settles, a trigger is sent from Channel
Ready of the Model 7001 to External Trigger Input of
the Model 2001 to trigger a measurement of DUT #1.
• After the Model 2001 completes the measurement, it
outputs a trigger from Meter Complete Output to
External Trigger of the Model 7001, which closes the
next channel.
• After Channel 1!2 settles, a trigger is sent to the Model
2001 to trigger a measurement of DUT #2.
This process continues until all ten channels are scanned and
measured.
The data store capability of the Model 2001 could be used to
store the measurements as they occur. Just press the STORE
key to set the number of readings to store, then press
ENTER. The Model 2001 waits (with the asterisk
annunciator lit) for an external trigger from the Model 7001
before taking a reading, storing it, and sending a trigger
pulse.
External triggering example #2
External triggering can also be used in a test system
consisting of a Model 2001 Multimeter and a Model 706
Scanner with an appropriate scanner card.
The external trigger connections are the same as those shown
in Figure 3-27 for the Models 2001 and 7001. Channel
Ready Output of the Model 706 is connected to External
Trigger Input of the Model 2001. External Trigger Input of
the Model 706 is connected to Meter Complete Output of the
Model 2001.
The trigger configuration of the Model 2001 does not change
from the previous example. The Model 706 is configured for
external triggering.
3.7.7 Trigger Link
The Model 2001 has enhanced external triggering
capabilities using the Trigger Link. The Trigger Link has six
lines allowing up to six instruments to be controlled over this