Agilent Technologies 6812B Elgar Model 9012 Compatibility, Main Board W1 Jumper Option Emulation

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Elgar Model 9012 Compatibility

Elgar Model 9012 Plug-in Programmer Compatibility

The ac source interface has a language switch command that allows it to emulate the Elgar Model 9012 Plug-in Programmer. The command to switch languages is:

SYSTem:LANGuage SCPI E9012

The language selection is stored in non-volatile memory and is retained after power-off. Regardless of which language is selected, the current selection can be queried using

SYSTem:LANGuage?

When E9012 is selected, all SCPI commands are disabled and the interface responds only to Elgar commands. Many ac source features which do not have corresponding Elgar commands are disabled in this mode, as are their front panel controls. The basic capabilities of the Elgar PIP are control of voltage, frequency, and current limit, and readback of frequency, rms voltage, current, and power. Transient capabilities include dropout and some phase synchronization of the output voltage changes.

Main Board W1 Jumper Option Emulation

Some Elgar 9012 programming commands are affected by the installation of an "alternate" W1 jumper configuration. This behavior can be programmed in E9012 language using the following command:

JUMPer1 NORMal ALTernate

The JUMPer1 setting is stored in non-volatile memory and is retained after power off. The jumper affects the phase synchronization of the PEAK, ZERO, and DROP commands.

Syntax Compatibility

The instrument accepts a superset of Elgar of the E9012 PIP commands. It should correctly accept any command string that the Elgar PIP accepts. However, it is less strict in checking white space between headers and arguments, and it accepts more combinations of commands within a single message unit. Any number of Elgar commands can be combined into a single program message unit. The command separator is a comma, and serves the same purpose as the semicolon in SCPI. The format of query responses is identical to that of the E9012 PIP. The response terminator is a newline with EOI asserted.

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