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SYSTem:NVDefault
Comments
Error Conditions
Reset Condition
Related
Commands
148 Programming the Enhanced Monitor
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resets many non-volatile mainframe settings to factory defaults.
SYSTem:NVDefault
This includes temperature limits, current limits, total power limits, status enable
settings, PSC flag, beep frequency, beep duration, system name, and mainframe
serial number. RS-232 settings are not reset; use SYST:COMM:SER:PRES to reset
RS-232 settings to the factory defaults.
•
This command is similar to
the factory defaults -- not those set by the last
SYST:NVD places the defaults into registers but does not alter non-volatile
memory.
•
Note that the mainframe serial number is set to "0", not the actual serial
number of the mainframe. Refer to the
•
If *PSC was set to 0 prior to power-down, then at power-on, the enable
registers are loaded from non-volatile memory. Therefore, any values that you
have stored (
SYSTem:NVSave
However, if *PSC was set to 1, then at power-on, the factory defaults are
returned. The factory defaults are listed in the following table:
Register
STATus:OPERation:ENABle
STATus:QUEStionable:ENABle
STAT:QUES:BLOWer:ENABle
STAT:QUES:CURRent:ENABle
STAT:QUES:TEMPerature:ENABle
STAT:QUES:VOLT:ENABle
STAT:QUES:VOLT:PTR
STAT:QUES:CURR:LIM
STAT:QUES:TEMP:LIM
The following table lists the most common error conditions and causes. Error
numbers and corresponding messages can be found using
Number
Message
-221
"Settings Conflict"
-311
"Memory Error"
*RST has no effect on this command.
SYSTem:NVRecall, SYSTem:NVSave
except that SYST:NVD recalls
SYSTem:NVRecall
SYSTem:NVSave
SYSTem:SNUMber
command) are returned to the registers.
Default
Register
Value
0
STAT:QUES:POW:LIM
0
SYST:BEEP:FREQ
7
SYST:BEEP:TIM
487
SYST:NAME
32767
SYST:SNUM
487
HIST:UNIT:TIME
511
*PSC
none
*ESE
65, 20,
*SRE
55
SYSTem:ERRor?
Probable Cause
The mainframe's power is off.
Non-volatile memory failure.
command.
command.
Default
Value
none
1000
0.2
none
none
Hour
query.
Chapter 3
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