Agilent Technologies E8257D PSG Instrukcja Użytkownika Pobierz pdf (Strona 161)

Agilent N516xA, N518xA, E8663B, E44x8C, and E82x7D Signal Generators Programming Guide 149

4 Programming the Status Register System

This chapter provides the following major sections:

• Overview on page 149

• Status Register Bit Values on page 160

• Accessing Status Register Information on page 161

• Status Byte Group on page 167

• Status Groups on page 169

Overview

NOTE Some of the status bits and register groups only apply to select signal generators with

certain options do not apply to the E8663B. For more specific information on each

exception, refer to the following:

• Standard Operation Condition Register bits (see Table 4- 6 on page 173)

• Baseband Operation Status Group (see page 175)

• Data Questionable Condition Register bits (see Table 4- 8 on page 179)

• Data Questionable Power Condition Register bits (see Table 4- 9 on page 182)

• Data Questionable Frequency Condition Register bits (see Table 4- 10 on page 185)

• Data Questionable Modulation Condition Register bits (see Table 4- 11 on page 188)

• Data Questionable Calibration Condition Register bit (see Table 4- 12 on page 191)

• Data Questionable Bert Status Group (see page 193)

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 signal generator’s SCPI command reference guide, to see if any

errors have occurred.

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

1 2 ... 156 157 158 159 160 161 162 163 164 165 166 ... 379 380

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Agilent Technologies E8257D PSG Instrukcja Użytkownika Strona 161