Agilent Technologies 8935 Series Uživatelský manuál stáhnout pdf (Strana 181)

Chapter 6 181

Advanced Operations

Instrument Initialization

Front-panel PRESET Key

The Front-panel Reset is accomplished by pressing the PRESET key on

the front panel of the Test Set.

For the INSTRUMENT CONFIGURE, PRINTER CONFIGURE,

TESTS (Execution Conditions), TESTS (Printer Setup) and I/O

CONFIGURE screens, Table 6-12 on page 179 lists the fields which are

restored/initialized when the front-panel

Preset key is pressed. The

restored state or initialized value is listed below the field name. Fields

which are not listed are maintained at their current value, whatever

that may happen to be. All fields in the SOFTWARE MENU screen and

the TESTS (External Devices) screen are maintained at their current

state/value. The current state/value of the maintained fields can be

ascertained programmatically.

The Front-panel Reset condition in the Test Set was specifically

designed to configure the instruments for manual testing of an FM

radio. The Front-panel Reset default display screen is the RX TEST

screen. Other operational characteristics are also affected by the

Front-panel Reset as follows:

• All pending operations are aborted.

• Measurement triggering is set to TRIG:MODE:SETT FULL;RETR

REP.

• Any previously received Operation Complete command (*OPC) is

cleared.

• Any previously received Operation Complete query command

(*OPC?) is cleared.

• The Test Set’s display screen is in the UNLOCKED state.

• The Power-up self-test diagnostics are not performed.

• The HP-IB interface is not reset (any pending Service Request is not

cleared.)

• The Contents of the SAVE/RECALL registers are not affected.

• Calibration data is not affected.

• All Enable registers are unaffected: Service Request, Standard

Event, Communicate, Hardware #1, Hardware #2, Operation,

Calibration, and Questionable Data/Signal.

• All Negative Transition Filter registers are unaffected:

Communicate, Hardware #1, Hardware #2, Operation, Calibration,

and Questionable Data/Signal.

• All Positive Transition Filter registers are unaffected: Communicate,

Hardware #1, Hardware #2, Operation, Calibration, and

Questionable Data/Signal.

• The contents of the RAM are unaffected.

1 2 ... 176 177 178 179 180 181 182 183 184 185 186 ... 328 329

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