Agilent Technologies 4294A Programming Manual page 502

Error messages
Error number: -121
Numeric data (including numeric data without a decimal point) causes an error. A numeric
value error other than -121 to -129 occurred.
-121 Invalid character in number
An invalid character for the data type of the syntax analysis target was received. For
example, alphabetical characters exist in a decimal value, or "9" exits in octal data.
-123 Exponent too large
The absolute value of the exponent exceeds 32,000. (Refer to IEEE488.2,7.7.2.4.1.)
-124 Too many digits
The number of digits of the mantissa of the decimal value data element exceeds 255 except
preceding 0s. (Refer to IEEE488.27.7.2.4.1.)
-128 Numeric data not allowed
A numeric value data element (that did not violate the standard) was received at where the
4294A did not accept any numeric value data elements.
-130 Suffix error
A suffix error.
An error other than -131 to -139 occurred in the notation of a suffix.
-131 Invalid suffix
The suffix does not meet the syntax defined in IEEE488.2,7.7.3.2 or it is inappropriate for
the 4294A.
-134 Suffix too long
The suffix is too long.
The suffix contains the notation of 12 characters or more. (Refer to IEEE488.2,7.7.3.4.)
-138 Suffix not allowed
A suffix is added to a numeric value element to which no suffix can be added.
-140 Character data error
An error not included in error numbers between -141 and -149 occurred during the syntax
analysis of a character data element.
-141 Invalid character data
There are invalid characters in a character data element or the received parameter is not
valid. For example, though a correct program message was "MEAS LSR," a wrong program
message, "MEAS LSD," was received.
-144 Character data too long
The length of the character data element exceeds 12 characters. (Refer to
IEEE488.2,7.7.1.4.)
-148 Character data not allowed
A character data element (that did not violate the standard) was received at where the
4294A did not accept any character data elements. For example, a parameter must be
enclosed with double quotation marks (") but they are missing.
502 Appendix D