Keysight Technologies X-Series, Руководство по программированию

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168 Keysight CXG, EXG, and MXG X-Series Signal Generators Programming Guide
Programming the Status Register System
Overview
Overview
During remote operation, you may need to monitor the status of the signal
generator for error conditions or status changes. You can use the signal
generator’s status register system to monitor error conditions, or condition
changes, or both. In general, the error queue is easier to use than the status
registers, but the status registers provide some additional information not
found in the error queue. For more information on using the signal generator’s
SCPI commands to query the signal generator’s error queue, refer to the SCPI
Command Reference.
The signal generator’s status register system provides two major advantages:
— You can monitor the settling of the signal generator using the settling bit of
the Standard Operation Status Group’s condition register.
— You can use the service request (SRQ) interrupt technique to avoid status
polling, therefore giving a speed advantage.
The signal generator’s instrument status system provides complete SCPI
compliant data structures for reporting instrument status using the register
model.
The SCPI register model of the status system has multiple registers that are
arranged in a hierarchical order. The lower-priority status registers propagate
their data to the higher-priority registers using summary bits. The Status Byte
Register is at the top of the hierarchy and contains the status information for
lower level registers. The lower level registers monitor specific events or
conditions.
The lower level status registers are grouped according to their functionality.
For example, the Data Questionable Frequency Status Group consists of five
registers. This chapter may refer to a group as a register so that the
cumbersome longer description is avoided. For example, the Standard
Some of the status bits and register groups only apply to select signal
generators with certain options. For more specific information on each
exception, refer to the following:
— Standard Operation Condition Register bits (see
Table on page 185
)
—
Data Questionable Condition Register bits (see Table on page 188 )
—
Data Questionable Power Condition Register bits (see Table on
page 191 )
—
Data Questionable Frequency Condition Register bits (see Table on
page 194 )
—
Data Questionable Calibration Condition Register bit (see Table on
page 197 )
—
Data Questionable BERT Status Group (see page 199 )