10
8.Status Reporting
Agilent SAS Status Structure.........................................................................................................................87
Operation Status Group.................................................................................................................................87
Register Functions...................................................................................................................................87
Register Commands.................................................................................................................................87
Questionable Status Group............................................................................................................................89
Register Functions...................................................................................................................................89
Register Commands.................................................................................................................................89
Standard Event Status Group.........................................................................................................................89
Register Functions...................................................................................................................................89
Register Commands.................................................................................................................................89
Status Byte Register...................................................................................................................................... 89
The RQS Bit............................................................................................................................................90
The MSS Bit............................................................................................................................................90
Determining the Cause of a Service Interrupt..........................................................................................90
Service Request Enable Register...................................................................................................................90
Output Queue................................................................................................................................................ 90
Initial Conditions at Power-On......................................................................................................................90
Status Registers....................................................................................................................................... 90
The PON (Power-On) Bit........................................................................................................................91
Examples.......................................................................................................................................................91
Servicing an Operation Status Mode Event.............................................................................................91
Adding More Operation Events...............................................................................................................91
Servicing Questionable Status Events.....................................................................................................91
Monitoring Both Phases of a Status Transition.......................................................................................92
SCPI Command Completion.........................................................................................................................92
DFI (Discrete Fault Indicator).......................................................................................................................92
RI (Remote Inhibit)....................................................................................................................................... 93
Using Device Clear....................................................................................................................................... 93
A Specifications and Application Information
Specifications and Supplemental Characteristics..........................................................................................95
Output Impedance Graphs.............................................................................................................................99
Simulator Mode.......................................................................................................................................99
Fixed Mode........................................................................................................................................... 101
Peak Power Tracker Application ................................................................................................................102
Exponential Model Equations............................................................................................................... 103
Series Switching Regulation........................................................................................................................104
Shunt Switching Regulation........................................................................................................................104
B Verification and Calibration
Introduction.................................................................................................................................................105
Test Equipment Required............................................................................................................................105
Current Monitoring Resistor..................................................................................................................105
Verification..................................................................................................................................................106
General Measurement Techniques........................................................................................................ 106
Programming the Agilent SAS..............................................................................................................106
Order of Tests........................................................................................................................................106
Turn On Checkout.................................................................................................................................106
Voltage Programming and Readback Accuracy....................................................................................106
Current Programming and Readback Accuracy.....................................................................................107
Calibration...................................................................................................................................................108
Test Equipment Required......................................................................................................................108
General Procedure.................................................................................................................................108
Parameters Calibrated............................................................................................................................108
Front Panel Calibration............................................................................................................................... 109