AMETEK Ls Series Driver Manual - Manual (Page 254)

IVI Driver Manual Lx / Ls Series
250
channel-based, then you set this control to empty string or VI_NULL.
Pass the virtual channel name that you assign to the instrument in
the Configuration Utility.
Virtual channel names are aliases for instrument-specific channel
strings. The instrument-specific channel strings can differ from one
instrument to another. Virtual channel names allow you to use and
swap instruments without having to change the channel names in your
source code. You assign a virtual channel name to an
instrument-specific channel through the Configuration Utility. This
control accepts virtual channel names you have assigned to the
specific instrument you are using. It also accepts the
instrument-specific channel names.
Default Value: ""
Notes:
(1) You can specify the channel name as a string variable or as a
literal enclosed in double quotes.
attributeID
Variable Type ViAttr
Pass the ID of an attribute.
From the function panel window, you can use this control as follows.
- Click on the control or press , , or
, to display a dialog box containing a
hierarchical list of the available attributes. Attributes
whose value cannot be set are dim. Help text is shown for
each attribute. Select an attribute by double-clicking on it
or by selecting it and then pressing .
Read-only attributes appear dim in the list box. If you
select a read-only attribute, an error message appears.
A ring control at the top of the dialog box allows you to see
all IVI attributes or only the attributes of the ViSession
type. If you choose to see all IVI attributes, the data types
appear to the right of the attribute names in the list box.
Attributes with data types other than ViSession are dim. If
you select an attribute data type that is dim, LabWindows/CVI
transfers you to the function panel for the corresponding
function that is consistent with the data type.
- If you want to enter a variable name, press to change
this ring control to a manual input box.
- If the attribute in this ring control has named constants as
valid values, you can view the constants by moving to the
Attribute Value control and pressing .