Agilent Technologies N8900 series Operating Manual page 114

SCPI Error Messages
Either the character data element contains an invalid character, or the element is not valid.
-144 Character data too long
The character data element contains more than 12 characters.
-148 Character data not allowed
A discrete parameter was received, but a string or numeric parameter was expected.
-150 String data error
Generic string data error
-151 Invalid string data
An invalid character string was received. Check that the string is enclosed in quotation marks.
-158 String data not allowed
A character string was received, but is not allowed for this command.
Execution Errors (these errors set Standard Event Status register bit #4)
-200 Execution error
Generic syntax error
-220 Parameter error
A data element related error occurred.
-221 Settings conflict
A data element could not be executed because of the present instrument state.
-222 Data out of range
A data element could not be executed because the value was outside the valid range.
-223 Too much data
A data element was received that contains more data than the instrument can handle.
-224 Illegal parameter value
An exact value was expected but not received.
-225 Out of memory
The device has insufficient memory to perform the requested operation.
-230 Data corrupt or stale
Possible invalid data. A new reading was started but not completed.
-231 Data questionable
The measurement accuracy is suspect.
-232 Invalid format
The data format or structure is inappropriate.
-233 Invalid version
Agilent N8900 Series Operating and Service Guide 113