EasyManuals Logo

Keithley 2700 User Manual

Keithley 2700
500 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #357 background imageLoading...
Page #357 background image
14-4 FORMat and Misc SYSTem Commands Model 2700 Multimeter/Switch System User’s Manual
IEEE-754 binary formats
Binary data from the instrument can be returned using the single precision format or the
double precision format. The data can be returned in the normal byte order or the swapped
(reversed) byte order. See “
FORMat:BORDer <name>” for details on byte order.
A returned data string from the instrument is made of one or more data elements. Typical
selected data elements include the reading, units, and timestamp. See
FORMat:ELEMents <item list>” for details on all data elements.
Single precision data format (32 data bits)
For the single precision format, each data element (e.g., reading) is sent as a 4-byte binary
data block, as shown in
Figure 14-2A. This drawing shows data returned in the normal
byte order (byte 1 first, byte 4 last). With the swapped byte order selected, bytes are
returned in the reverse order (byte 4 first, byte 1 last).
The REAL, 32, or SREal command will select the binary IEEE-754 single precision data
format.
Double precision data format (64 data bits)
For the double precision format, each data element (e.g., reading) is sent as a 8-byte binary
data block, as shown in
Figure 14-2B. This drawing shows data returned in the normal bye
order (byte 1 first, byte 8 last). With the swapped byte order selected, bytes are returned in
the reverse order (byte 8 first, byte 1 last).
The REAL, 64, or DREal command will select the binary IEEE-754 double precision data
format.
Data strings
The data string that is returned by a read command depends on the selected data elements
and the number of measurement conversions that were performed. A data string consists
of a Header and the byte data blocks for each measurement conversion.
Figure 14-2C
shows an example data string: 10 measurement conversions, single precision data format,
three data elements (reading, units, and timestamp), and normal byte order.
Header — The data string for each set of reading conversions is preceded by a 2-byte
header that is the binary equivalent of an ASCII # sign and 0. As shown in
Figure 14-2C,
only one header is sent at the beginning of the data string.

Table of Contents

Other manuals for Keithley 2700

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the Keithley 2700 and is the answer not in the manual?

Keithley 2700 Specifications

General IconGeneral
TypeDigital Multimeter
Measurement FunctionsDC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency, Temperature
DC Voltage Range100 mV to 1000 V
AC Voltage Range100 mV to 750 V
Frequency Range3 Hz to 500 kHz
Temperature Range-200°C to +1372°C
DisplayVacuum Fluorescent Display
ConnectivityIEEE-488, RS-232
Channels10
Power Supply100V to 240V AC, 45Hz to 66Hz
DC Current Range10 µA to 3 A
AC Current Range10 µA to 3 A
Temperature MeasurementThermocouple, RTD

Related product manuals