delete - Remove instrument objects from memory
Syntax
delete(obj)
Arguments
obj | An instrument object or an array of instrument objects. |
Description
delete(obj) removes obj from
memory.
Remarks
When you delete obj, it becomes an invalid object.
Because you cannot connect an invalid object to the instrument, you
should remove it from the workspace with the clear command. If multiple references
to obj exist in the workspace, then deleting one
reference invalidates the remaining references.
If obj is connected to the instrument, it
has a Status property value of open.
If you issue delete while obj is
connected, the connection is automatically broken. You can also disconnect obj from
the instrument with the fclose function.
If obj is an interface object that is associated
with a device object, the device object is automatically deleted when obj is
deleted. However, if obj is a device object, the
interface object is not automatically deleted when obj is
deleted.
Examples
This example creates the GPIB object g, connects g to
the instrument, writes and reads text data, disconnects g,
removes g from memory using delete,
and then removes g from the workspace using clear.
g = gpib('ni',0,1);
fopen(g)
fprintf(g,'*IDN?')
idn = fscanf(g);
fclose(g)
delete(g)
clear gSee Also
Functions
clear, fclose, instrhelp, isvalid, stopasync
Properties
Status
 | connect | | devicereset |  |
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