HP E8402A, User And Service Manual, Page: 153 / 249

Programming the Enhanced Monitor 155
Chapter 3
SYSTem:SNUMber < string >
SYSTem:SNUMber?
SYSTem:SNUMber sets the serial number of the mainframe.
SYSTem:SNUMber? returns the serial number of the mainframe.
Parameters
Returned Data
Comments
•
This number is set during manufacturing. However, the owner of the
mainframe can choose to store their own identifying number for the
mainframe.
SYSTem:NAME may be a better choice for an identifying name.
The serial number is reported through the *IDN? command. Once changed, the
original serial number is only available from the serial number label on the rear
panel of the mainframe. It will not be returned to memory with the
SYSTem:NVDefault command. Instead, the SYSTem:NVDefault command
restores the value 0 to SYSTem:SNUMber.
•
You may supply 15 characters in addition to enclosing quotation marks (“).
You may need up to 17 characters of buffer space to receive the response
because it include the quotation marks.
•
This command determines if <string> is within the valid 15 character range. If
it is not, the string is truncated to 15 characters. No error is generated.
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 resets serial number the last value saved by the SYST:NVS command.
Related
Commands
SYSTem:NAMe
Name Type Range Default Description
< string> string 15 characters none Serial Number of mainframe.
Type Range Default Description
string 15 characters “0” Serial number of instrument
Number Message Probable Cause
-128 “Numeric data not allowed” Requires quotes around string.
-148 “Character data not allowed” Requires quotes around string.
-221 “Settings Conflict” The mainframe’s power is off.