Table of Contents
Advertisement
7
The Keysight 816x VXIplug&play Instrument Driver
278
The Register Mainframe Function
Use the Register Mainframe (hp816x_registerMainframe) function to
register your mainframe as a participant in a Multi Frame Lambda Scan
operation. The mainframe must be connected to the GPIB bus and have
their Input Trigger Connector connected to the Output Trigger Connector
of the Keysight Lightwave mainframe that the tunable laser module is
installed in the N774x-series multiport power meters are also supported.
The Unregister Mainframe Function
Use the Unregister Mainframe function (hp816x_unregisterMainframe) to
remove a mainframe from a Multi Frame Lambda Scan operation and clear
the driver's internal data structures.
If you use LabView the following items should be noted:
•
All multi frame functions are not re-entrant, if the driver is running and
initialized more than once, results may be unpredictable.
•
To avoid wrong results, call the Unregister Mainframe function prior to
the Initialize function (hp816x_init). This is especially necessary during
program debugging, if the Close function (hp816x_close) is not called.
The Prepare Multi Frame Lambda Scan Function
The Prepare Multi Frame Lambda Scan (hp816x_prepareMfLambdaScan)
function prepares a Lambda Scan operation for multiple Mainframes.
That is, it prepares an operation where a Keysight Lightwave mainframe
with a continuous-sweep tunable laser module and up to 100 power meter
channels located in different instruments are installed.
The Prepare Multi Frame Lambda Scan (hp816x_prepareMfLambdaScan)
function must be called before a Multi Frame Lambda Scan is executed.
Use the return values of this function (Number of Datapoints and Number
of Power Arrays) to allocate arrays for the Execute Multi Frame Lambda
Scan (hp816x_executeMfLambdaScan) function.
The function scans all mainframes to find laser sources. The function scans
each mainframe in the order that they were originally registered by the
Register Mainframe function (hp816x_registerMainframe). The first
continuous-sweep tunable laser found will perform the sweep operation.If
more than one tunable laser is installed, only the laser with the lower slot
number will be used.
8163A/B, 8164A/B & 8166A/B Mainframes Programming Guide
Advertisement
Table of Contents
