Status Registers

Use Status Registers to Determine the State of Analyzer Events and Conditions

What are the Status Registers?

Refer toFigure 2-2, which shows the overall status register system in detail. Most status registers are composed of the five individual registers described below. One such status register in the figure is entitled “STATus: QUEStionable,” which is both the name of the register, and the SCPI command form used to access the register. From now on, the SCPI command form will be used when referring to the various registers. There are IEEE common SCPI commands noted under some register names in parenthesis. These commands are associated with those registers, and their effects are described under “How Do You Access the Status Registers?” in this chapter, and in the beginning of Chapter 5, “Language Reference,” in this guide.

Refer to the right-hand part of the STATus: QUEStionable register while reading the following register descriptions.

Condition

Register A condition register continuously monitors the hardware and firmware status of the analyzer. There is no latching or buffering for a condition register.

Negative

Transition

FilterA negative transition filter specifies the bits in the condition register that will set corresponding bits in the event register when the condition bit changes from

1 to 0.

Positive Transition

FilterA positive transition filter specifies the bits in the condition register that will set corresponding bits in the event register when the condition bit changes from

0 to 1.

Event

Register An event register latches transition events from the condition register as specified by the positive and negative transition filters. Bits in the event register are latched, and once set, they remain set until cleared by either querying the register contents or sending the *CLS command.

Event

Enable

Register An event enable register specifies the bits in the event register that can generate a summary bit. Summary bits are, in turn, used by the status byte register.

Chapter 2

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Agilent Technologies Model A.08.xx manual What are the Status Registers?
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Model A.08.xx specifications

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