HP E8402A, User And Service Manual, Page: 146 / 249

148 Programming the Enhanced Monitor Chapter 3
SYSTem:NVDefault
SYSTem:NVDefault resets many non-volatile mainframe settings to factory defaults.
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.
Comments
•
This command is similar to SYSTem:NVRecall except that SYST:NVD recalls
the factory defaults -- not those set by the last SYSTem:NVSave command.
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
SYSTem:SNUMber
command.
•
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 command) are returned to the registers.
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:
Error Conditions
The following table lists the most common error conditions and causes. Error
numbers and corresponding messages can be found using
SYSTem:ERRor?
query.
Reset Condition
*RST has no effect on this command.
Related
Commands
SYSTem:NVRecall, SYSTem:NVSave
Register Default
Value
Register Default
Value
STATus:OPERation:ENABle 0 STAT:QUES:POW:LIM none
STATus:QUEStionable:ENABle 0 SYST:BEEP:FREQ 1000
STAT:QUES:BLOWer:ENABle 7 SYST:BEEP:TIM 0.2
STAT:QUES:CURRent:ENABle 487 SYST:NAME none
STAT:QUES:TEMPerature:ENABle 32767 SYST:SNUM none
STAT:QUES:VOLT:ENABle 487 HIST:UNIT:TIME Hour
STAT:QUES:VOLT:PTR 511 *PSC
STAT:QUES:CURR:LIM none *ESE
STAT:QUES:TEMP:LIM 65, 20,
55 *SRE
Number Message Probable Cause
-221 “Settings Conflict” The mainframe’s power is off.
-311 “Memory Error” Non-volatile memory failure.