Chapter 4 Remote Interface Reference
Status Reporting Commands
100
Status Reporting Commands
See diagram “SCPI Status System”, on page 92 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, “Queue overflow”. 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.
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