The Questionable Data event register is cleared when:
• You execute a *CLS (clear status) command.
• You query the event register using the STATus:QUES:EVENt? command.
The Questionable Data enable register is cleared when:
• You turn on the power (*PSC does not apply).
• You execute the STATus:PRESet command.
• You execute the STATus:QUES:ENABle 0 command.
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Chapter 5 Remote Interface Reference
The SCPI Status System
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