Multiple 82357B Operation; Srq Operation - Keysight 82357B User Manual

Multiple 82357B operation

When two or more 82357Bs are attached to a system at the same time, we define
the mode as the multiple mode of operation. In multiple mode of operation, each
82357B is "bound" to its related IO Configuration for that Serial Number. This is a
different mode of operation than the single mode of operation in that the
configuration is not reused if you replace an 82357B with another 82357B.
As with single mode operation, the first time an 82357B is attached to a system
(assuming the Keysight IO Libraries Suite and 82357B driver are installed), the
software recognizes that an 82357B is attached. If the Connection Expert is not
running, the software displays a Keysight 82357B USB/GPIB Interface Detected
dialog box that allows you to accept the current settings. If the Connection Expert
is running, it automatically refreshes, displaying the 82357B as a USB/GPIB
interface in its tree view; you can then change the properties of the interface in the
Connection Expert.
The VISA and SICL Interface IDs, Logical Unit Number, and GPIB Address may be
viewed at any time in the property pane of the Connection Expert. (To view this
window, click the IO icon, then select Keysight Connection Expert.)
If you plug in another 82357B (with a different Serial Number), the new 82357B
will automatically be assigned a unique VISA Interface ID, SICL Interface ID, LU,
and GPIB Address.
– You can change the parameter values of the 82357B as required. See
NOTE
– You can also convert from multiple mode operation to single mode operation.

SRQ operation

If your VISA/SICL application uses SRQ callbacks (viEventHandler() in VISA or
ionsrq() in SICL) and your callback does not service the SRQ in a timely manner,
your SRQ callback function may be triggered multiple times.
To avoid this possible situation, design your SRQ callback functions to be called
only when an SRQ is no longer asserted on the GPIB bus.
Keysight 82357B User's Guide
"Changing configuration parameters"
See "Changing modes of operation"
Using the Keysight 82357B
on page 36 for details.
on page 37 for details.
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