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Chapter 4 Remote Interface Reference
Status Reporting Commands
98
Status Reporting Commands
See diagram “SCPI Status System”, on page 90 in this chapter for detailed
information of the status register structure of the power supply.
SYSTem:ERRor?
This query command reads one error from the error queue. When the
front-panel
ERROR annunciator turns on, one or more command syntax or
hardware errors have been detected. A record of up to 20 errors can be
stored in the power supply’s error queue.
See “Error Messages” in chapter 5
• Errors are retrieved in first-in-first-out (FIFO) order. The first error
returned is the first error that was stored. When you have read all errors
from the queue, the
ERROR
annunciator turns off. The power supply
beeps once each time an error is generated.
• If more than 20 errors have occurred, the last error stored in the queue
(the most recent error) is replaced with -350, “Too many errors” . No
additional errors are stored until you remove errors from the queue. If no
errors have occurred when you read the error queue, the power supply
responds with
+0, “No error” .
• The error queue is cleared when power has been off or after a
*CLS
(clear status) command has been executed. The
*RST
(reset) command
does not clear the error queue.
STATus:QUEStionable[:EVENt]?
This command queries the Questionable Status event register. The power
supply returns a decimal value which corresponds to the binary-weighted
sum of all bits in the register.
STATus:QUEStionable:ENABle
<enable value>
This command enables bits in the Questionable Status enable register. The
selected bits are then reported to the Status Byte.
STATus:QUEStionable:ENABle?
This command queries the Questionable Status enable register. The power
supply returns a binary-weighted decimal representing the bits set in the
enable register.