Agilent Technologies 6834B, 6814B, 6843A Status Model, Power-onState, Byte, Command Description

D - Elgar Model 9012 Compatibility

Status Model

In E9012 language, status information is provided through the serial poll response byte and the error queue. The error queue operates as it does in SCPI language, providing error status of selftest and other runtime errors. The SYSTem:ERRor? query operates identically in SCPI and E9012 languages.

The E9012 language provides an abbreviated status model consisting entirely of the serial poll response byte. Other SCPI status registers (questionable, operation, and standard event) are not defined for this language. The serial poll responses are limited to the following:

Byte Serial Poll Response

64SOA, Overtemperature, or Rail fault has tripped

67Overvoltage protection has tripped

71Overcurrent protection has tripped on phase 1

72Overcurrent protection has tripped on phase 2

73Overcurrent protection has tripped on phase 3

74Syntax error

75Command error (value out of range, improper mode, etc)

76Query interrupted, query unterminated, or deadlocked error

78Measurement error

79Measurement complete

Reading the serial poll response byte clears it to 0. There is no queue of responses, so the value read will indicate the most recent event.

Power-on State

The ac power source is set to the E9012 power-on state when any of the following occur.

υThe power source is turned on with the E9012 language selected.

υThe SYST:LANG E9012 command is given and the language had been set to SCPI.

υA GPIB Device Clear or Selected Device Clear command is sent to the power source while the E9012 language was selected.

The power-on state in E9012 language is equivalent to giving the following commands:

Command Description

VOLTS 0 0V output voltage

CURL 0 over-current protection disabled, current limit set to MAX

FREQ 400 400Hz output frequency

RNG 0 low voltage range

RNGF 2 frequency range to 1200Hz

CLS output relay closed

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