3 - Programming the DC Source
Questionable Status Group
The Questionable Status registers record signals that indicate abnormal operation of the dc source. As shown in figure
Register
Condition
PTR Filter
NTR Filter
Event
Enable
Command
STAT:QUES:COND?
STAT:QUES:PTR <n>
STAT:QUES:NTR <n>
STAT:QUES:EVEN?
STAT:QUES:ENAB <n>
Description
A register that holds
A positive transistion filter that functions as described under STAT:QUES:NTRPTR commands in chapter 4. It is a read/write register.
A negative transition filter that functions as described under STAT:QUES:NTRPTR commands in chapter 4. It is a read/write register.
A register that latches any condition that is passed through the PTR or NTR filters. It is a
A register that functions as a mask for enabling specific bits from the Event register. It is a read/write register..
Standard Event Status Group
This group consists of an Event register and an Enable register that are programmed by Common commands. The Standard Event event register latches events relating to instrument communication status (see figure
Command *ESE
*PSC ON *ESR?
Action
programs specific bits in the Standard Event enable register. clears the Standard Event enable register at
The PON (Power On) Bit
The PON bit in the Standard Event event register is set whenever the dc source is turned on. The most common use for PON is to generate an SRQ at
*PSC OFF *ESE 128 *SRE 32
Status Byte Register
This register summarizes the information from all other status groups as defined in the IEEE 488.2 Standard Digital Interface for Programmable Instrumentation. The bit configuration is shown in Table
Command | Action |
*STB? | reads the data in the register but does not clear it (returns MSS in bit 6) |
serial poll | clears RQS inside the register and returns it in bit position 6 of the response. |
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