Keithley 2001 User Manual

IEEE-488 Reference
4-99
Before performing an internal scan (Model 2001 SCAN), be sure that the instrument is appro-
priately configured for the measurements. The :SCAN[:INTernal]:FUNCtion command can be
used to set each channel for a specific measurement function. Also, if you want the instrument
to perform a particular number of scans, make sure to configure the Trigger Model appropriately
(see Trigger Subsystem).
Programming example 10 OUTPUT 716; “:syst:pres”
20 OUTPUT 716; “:init:cont off; :abor”
30 OUTPUT 716; “:rout:scan (@ 1,2,3,4,5)”
40 OUTPUT 716; “:arm:seq:lay2:coun 1”
50 OUTPUT 716; “trig:coun 5”
60 OUTPUT 716; “:init”
70 OUTPUT 716; “:syst:pres”
80 END
Line 10 Returns Model 2001 to :SYSTem:PREset defaults.
Line 20 Disables continuous initiation and places Model 2001 in idle state.
Line 30 Defines scan list.
Line 40 Programs scan layer of Trigger Model for one scan.
Line 50 Programs measure layer for five measurements.
Line 60 Perform a single scan of the five channels.
Line 70 Returns Model 2001 to :SYSTem:PREset defaults.
:EXTernal <list>
:ROUTe:SCAN:EXTernal <list> Define external scan list
Parameter <list> = (@ scanlist)
where; scanlist is the specified list of external channels (1 to 80) to be scanned.
Format :rout:scan:ext <list>
Defaults Power-up Saved power-on setup
*RST All 80 channels in scan list
:SYSTem:PRESet All 80 channels in scan list
Query :EXTernal? Query programmed scan list
Short-form format: :rout:scan:ext?
Response message: Currently programmed scanlist. For example:
(@ 1,2,3,4,5,6,7,8,9,10)
Description The Model 2001 can be set up to operate with an external switch system, such as the Keithley
Model 7001. With both instruments properly configured, the Model 2001 can measure up to 80
channels that are switched by the external switching system. This command is used to define the
external scan list for the Model 2001. This scan list simply programs a counter. When the scan
list for the Model 2001 corresponds to the scan list for the external switch system, the Model
2001 can keep track of which channel is being measured. This allows specific measurement
functions to be used for specific channels (see :EXTernal:FUNCtion).

Keithley 2001 Specifications

General

Model	2001
Category	Multimeter
Manufacturer	Keithley
Type	Digital Multimeter
Digits of Resolution	7.5
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
Frequency Range	3 Hz to 500 kHz
Connectivity	GPIB, RS-232
Display	VFD
Resistance Accuracy	0.008% + 2.0 mΩ
Frequency Accuracy	±0.01%
DC Current Range	10 μA to 3 A
AC Current Range	10 μA to 3 A
Power Supply	100 V to 240 V AC, 45 Hz to 66 Hz