Agilent Technologies E1300B User Manual page 184

VXI:CONFigure :DNUMber?
Parameters
Comments
Example
:CONFigure :DNUMber?
Comments
Example
7-56 System Instrument Command Reference
Parameter Parameter
Name Type
logical_addr numeric
When logical_addr is not specified, VXI:CONF:DLIS? returns
information for each of the devices installed, separated by semicolons. If
the Command Module is not the resource manager, it returns
information on only the devices in its servant area.
Cards which are part of a combined instrument such as a switchbox or
scanning voltmeter always return the same manufacturer's comments as
the first card in the instrument. Information in the other fields
correspond to the card for which the Logical Address was specified.
This command has been retained for compatibility with existing
programs. For new programs you should use the VXI:CONF:INF?
command.
Related Commands: VXI:CONF:DLAD?, VXI:CONF:DNUM?,
VXI:CONF:INF?, CONF:HEIR?
Querying the device list for the System Instrument
dimension string[1000]
VXI:CONF:DLIS? 0
enter string
Example response data (no error):
# H00000000, # H00000000, READY, "", "", "", "SYSTEM INSTALLED AT SECONDARY
ADDR 0"
Example response data (with error):
# H00000000, # H00000000, READY, "", "", "", "CNFG ERROR: 11"
VXI:CONF:DNUM? returns the number of devices installed in the mainframe
(including the System Instrument itself). If the Command Module is not the
resource manager, it returns the number of devices in its servant area.
Use the VXI:CONF:DNUM? command to determine the number of
values which will be returned by VXI:CONF:DLAD?.
This command has been retained for compatibility with existing
programs. For new programs you should use VXI:CONF:NUMB?
Related Commands: VXI:CONF:DLAD?, VXI:CONF:DLIS?
Determining the number of devices within the system
VXI:CONF:DNUM?
enter statement
Range of
Values
0-255 (or nothing)
string size large in case of
multiple device list
Ask for the device list for the
System Instrument
enter return data into string
+ 0, -1, + 4095, + 1301, + 0, + 0, HYB, NONE,
+ 255, + 0, + 4095, + 65380, -1, + 0, REG, A16,
query the number of devices
input number of devices
Default
Units
none