Agilent Technologies 34401A - Manual (Page 184)

501 Isolator UART framing error
502 Isolator UART overrun error
511 RS-232 framing error
512 RS-232 overrun error
513 RS-232 parity error
514 Command allowed only with RS-232
There are three commands which are only allowed with the
RS-232
interface: SYSTem:LOCal , SYSTem:REMote , and SYSTem:RWLock .
521 Input buffer overflow
522 Output buffer overflow
531 Insufficient memory
There is not enough memory to store the requested number of readings
in internal memory using the
INITiate command. The product of the
sample count ( SAMPle:COUNt ) and the trigger count ( TRIGger:COUNt )
must not exceed 512 readings.
532 Cannot achieve requested resolution
The multimeter cannot achieve the requested measurement resolution.
You may have specified an invalid resolution in the
CONFigure or
MEASure command.
540 Cannot use overload as math reference
The multimeter cannot store an overload reading (9.90000000E+37) as
the math reference for null or dB measurements. The math state is
turned off as a result of this condition.
550 Command not allowed in local
The multimeter received a
READ? or MEASure? command while in the
local mode. During RS-232 operation, you should always execute the
SYSTem:REMote command before sending other commands over the
interface.
Chapter 5 Error Messages
Execution Errors
178