HP 8647A - System Subsystem

SYSTem Subsystem SYSTem
: ERRor?
Returns any system error message. The format of the response is
<error number>, <error string>.
Returns a formatted numeric value corresponding to the
SCPI version
number
for which the instrument complies. The format of the
response
is YYYYV. The Ys represent the year version (for example,
1990) and the V represents an approved revision number for that
year.
: VERSion?
2.20 HP-IB Programming