3 Remote Interface Reference
SCPI Status Registers
110 E364xA User’s and Service Guide
Questionable Status register
The Questionable Status register provides information about
unexpected operations of the power supply. Bit 4 reports a
fault with the fan, and bit 13 summarizes questionable
outputs for any of the two supplies. For example, if one of
the two supplies is in constant voltage mode and due to an
overload looses regulation, bit 13 is set (latched). To read
the register, send the command STATus:QUEStionable?.
To make use of bit 13, you must first enable registers you
wish to summarize with bit 13. Send the command
STAT:QUES:INST:ENAB 6 to enable the Questionable
instrument register, then send the command
STAT:QUES:INST:ISUM<n>:ENAB 515 for each supply to
enable the Questionable instrument summary register, where
n is 1 or 2.
Table 3 - 4 Bit definitions — Questionable Status register
Bit Decimal value Definition
0-3 Not Used 0 Always set to 0.
4 Overtemperature 16 The fan has a fault condition.
5-12 Not Used 0 Always set to 0.
13 ISUM 8192 Summary of QUES:INST and QUES:INST:ISUM registers.
14-15 Not Used 0 Always set to 0.
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