Agilent Technologies L4400 - Manual (Page 77)

Operating and Programming 3
L4400 User’s Guide 65
Because of the similarity in products, code and applications can be
leveraged and ported between an L4400 instrument and its 34980A
module counterpart.
Porting Applications
The programming examples on the L4400 Product Reference CD- ROM as
well as all application programs contain a function that opens a “session”
to, and initializes the instrument.
In addition to specifying the instrument’s address string, this
initialization function contains parmeters that query and reset the
instrument when the session is opened. These parameters are
represented by true/false conditions that either perform an ID query or
reset (true) or do not (false).
By setting the ID query parameter of the (session) initialization function
to ‘False’, the program can be ported between corresponding (L4400 and
34980A) instruments.
For example, in the IVI- COM programming example
MultfunctionExample.csproj, the instrument session is opened using the
function:

host.Initialize("GPIB::9",
false , true , standardInitOptions +
"," + driverSetupOptions);
By setting the ID query parameter to ‘false’ as shown and changing the
address string as required, the example can be run using the L4452A
multifunction module or the 34952A multifunction module. Note that
channel addresses within the program must be changed accordingly. See
“L4400 Series Channel Addressing Scheme” for more information.
Modifying each of the programming examples on the L4400 Product
Reference CD- ROM in this manner allows the examples to be used by the
L4400 instruments and their 34980A counterparts.
Analog Bus Applications
Usage:
• L4421A 40- Channel Armature Multiplexer
• L4433A Dual/Quad 4x8 Reed Matrix
This section provides important environmental and electrical considerations
that can affect analog bus usage on the L4421A and L4433A.
reset
ID query
address string