Agilent Technologies 34901A User Manual page 287

Chapter 5 Remote Interface Reference
The SCPI Status System
The Alarm Register
The Alarm register group is used to report the status of the four
instrument alarm limits. Any or all of these alarm conditions can be
reported to the Alarm Register summary bit through the enable register.
To set the enable register mask, you must write a decimal value to the
register using the STATus:ALARm:ENABle command.
Bit Definitions – Alarm Register
Bit Number
0 Alarm 1
1 Alarm 2
2 Alarm 3
3 Alarm 4
4 Queue Empty *
5 Queue Overflow
6 Not Used
15 Not Used
* The Condition Register implements only bit 4.
The Alarm event register is cleared when:
• You execute a *CLS (clear status) command.
• You query the event register using the STATus:ALARm:EVENt? command.
The Alarm enable register is cleared when:
• You turn on the power (*PSC does not apply).
• You execute the STATus:PRESet command.
• You execute the STATus:ALARm:ENABle 0 command.
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Decimal
Value Definition
1 Alarm occurred on Alarm 1.
2 Alarm occurred on Alarm 2.
4 Alarm occurred on Alarm 3.
8 Alarm occurred on Alarm 4.
16 Alarm queue status (0 = empty, 1 = not empty).
32 Alarm data lost due to alarm queue overflow.
64 Returns "0".
32768 Returns "0".