Keithley 2001 User Manual

IEEE-488 Reference
4-88
Programming example 10 OUTPUT 716; “:form SRE; form?”
20 ENTER 716; A$
30 PRINT A$
40 END
Line 10 Two commands in this program message; the first selects the single precision binary
data format, and the second queries the data format.
Line 20 Addresses the Model 2001 to talk.
Line 30 Displays SRE indicating IEEE754 single precision format is selected.
:ELEMents <item list>
:FORMat:ELEMents <item list> Specify data elements for data string
Parameters <item list>: READing Includes reading in data string
CHANnel Includes channel number
RNUMber Includes reading number
UNITs Includes units
TIMEstamp Includes time stamp
STATus Includes status of reading
NOTE: Each item in the list must be separated by a comma (,).
Format :form:elem <item list>
Defaults Power-up Saved power-on setup
*RST READing
:SYSTem:PRESet All elements
Query :ELEMents? Query elements in data string
Short-form format: :form:elem?
Response message: READ, CHAN, RNUM, UNIT, TIME, STAT
NOTE: Only the programmed elements are included in the response message.
Description This command is used to specify the elements to be included in the data string for each measure-
ment conversion. You can specify from one to all six elements. Each element in the list must be
separated by a comma (,). These elements, shown in Figure 4-19, are explained as follows:
READing: Instrument reading. The resolution of this reading tracks the display resolution of
the instrument. An overflow reading will read as +9.9E37.
CHANnel: Corresponds the instrument reading to the channel number of a switching card. If
not scanning, the channel number will be 00.
RNUMber: The instrument keeps track of the number of readings it has performed. This reading
counter starts at zero when the instrument is turned on. When a reading is sent over the bus (i.e.
:FETCh?), the RNUMber element will indicate the reading number. The instrument also keeps
track of the number of readings it has stored in the buffer. When buffer readings are sent over
the bus (:TRACe:DATA?), each reading number will be referenced to the first reading, which is

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