Keithley 2002 User Manual

IEEE-488 Reference
3-155
:TIMer? Query programmed timer interval
:TIMer? DEFault Query *RST default timer interval
:TIMer? MINimum Query lowest allowable timer interval
:TIMer? MAXimum Query largest allowable timer interval
These commands are used to set the interval for the scan layer and measure layer timers. Note
that the timer is in effect only if the timer is the selected control source. Also, note that the arm
layer (Arm Layer 1) does not use a timer.
PRINT #1, "output 16; :trig:tim .25; tim?" ' Set timer for Measure Layer
PRINT #1, "enter 16" ' Get response from 2002
:SIGNal
:ARM[:SEQuence[1]][:LAYer[1]]:SIGNal Bypass arm control source
:ARM[:SEQuence[1]]:LAYer2:SIGNal Bypass scan control source
:TRIGger[:SEQuence[1]]:SIGNal Bypass measure control source
These action commands are used to bypass the specified control source and also when you do
not wish to wait for the programmed event. Keep in mind that the instrument must be waiting
for the appropriate event when the command is sent. Otherwise, an error occurs and this com-
mand is ignored.
PRINT #1, "output 16; :trig:sign" ' Bypass measure control source
TCONfigure commands
:PROTocol <name>
:TRIGger[:SEQuence[1]]:TCONfigure:PROTocol <name> Specify Trigger Link protocol
<name> = ASYNchronous Asynchronous Trigger Link mode
SSYNchronous Semi-synchronous Trigger Link mode
:PROTocol? Query programmed Trigger Link protocol
This command is used to select the protocol for the measure layer Trigger Link. With ASYN-
chronous selected, separate trigger lines are used for input and output triggers. With SSYNchro-
nous selected, a single trigger line is used for both input and output triggers.
Note that the arm and scan layers only use the asynchronous Trigger Link mode and therefore,
do not have to be selected.
PRINT #1, "output 16; :trig:tcon:prot ssyn; prot?" ' Select semi-sync proto-
col
PRINT #1, "enter 16" ' Get response from 2002
:DIRection <name>
:ARM[:SEQuence[1]][:LAYer[1]]:TCONfigure:DIRection <name>Control arm Source Bypass
:ARM[:SEQuence[1]]:LAYer2:TCONfigure:DIRection <name>Control scan Source Bypass
:TRIGger[:SEQuence[1]]:TCONfigure:DIRection <name>Control measure Source Bypass
<name> = SOURce Enable Source Bypass
ACCeptor Disable Source Bypass
Query
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3.23.
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Description
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3.23.
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Parameters
Query
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Parameters

Keithley 2002 Specifications

General

Resolution	8.5 digits
DC Voltage Accuracy	±0.0006%
Maximum DC Voltage	1000 V
Maximum AC Voltage	750 V
Maximum DC Current	3 A
Maximum AC Current	3 A
Connectivity	GPIB, RS-232
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
Resistance Range	10 Ω to 1 GΩ
Model	2002
Category	Multimeter
Interface	GPIB, RS-232
AC Current Accuracy	±0.1%
Frequency Range	0.1Hz to 300kHz
Display	VFD
Type	Digital
Power Supply	100-240V AC, 50/60Hz
Current Range (DC)	100 μA to 3 A
Current Accuracy (DC)	±0.01%
Current Range (AC)	100 μA to 3 A
Current Accuracy (AC)	±0.1%
DC Current Range	100 μA to 3 A
AC Current Range	100 μA to 3 A