Status Reporting

4

Status Reporting

Power Supply Status Structure

Figure 4-1 shows the status register structure of the power supply. The Standard Event, Status Byte, and Service Request Enable registers and the Output Queue perform standard GPIB functions as defined in the IEEE 488.2 Standard Digital Interface for Programmable Instrumentation. The Operation Status and Questionable Status registers implement status functions specific to the power supply. Table 4-2 and Figure 4-1 show the bit configuration of each status register.

Operation Status Group

Register Functions

The Operation Status registers record signals that occur during normal operation. The group consists of the following registers:

•A Condition register that holds real-time status of the circuits being monitored. It is a read-only register.

•A PTR/NTR (positive transition/negative transition) Filter that functions as described under STAT:OPER:NTRPTR COMMANDS in "Chapter 3 - Language Dictionary". This is a read/write register.

•An Event register that latches any condition that is passed through the PTR or NTR filters. Reading the Event register clears it.

•An Enable register that functions as described under STAT:OPER:ENAB in "Chapter 3 - Language Dictionary". This is a read/write register.

The outputs of the Operation Status group are logically-ORed into the OPER(ation) summary bit (7) of the Status Byte register.

Register Commands

Commands that access this group are derived from the STAT:OPER commands described in "Chapter 3 - Language Dictionary" and summarized in Table 4-1.

Table 4-1. Status Operation Commands
Register

Command

Query
Cleared By

Condition

(None)

STAT:OPER:COND?

Cannot be cleared

PTR Filter

STAT:OPER:PTR <NRf>

STAT:OPER:PTR?

Programming 0

NTR Filter

STAT:OPER:NTR <NRf>

STAT:OPER:NTR?

Programming 0 or

 

 

 

STAT:PRES

Event

(None)

STAT:OPER:EVEN?

Reading or *CLS

Enable

STAT:OPER:ENAB <NRf>

STAT:OPER:ENAB?

Programming 0

 

 

 

 

Status Reporting 51

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Agilent Technologies 668xA Status Reporting, Power Supply Status Structure, Operation Status Group, Register Functions
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668xA, 669xA, 667xA, 664xA, 665xA specifications

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