HP 8920B Programmer's Manual page 658

Error −128
Error −130
Error −131
Error −134
Error −138
Error −140
Error −141
Error −144
Error −148
658
Numeric data not allowed
A legal numeric data element was received, but the device does not accept one in this
position for the header.
Suffix error
This error, as well as errors −131 through −138, are generated when parsing a suffix.
Invalid suffix
The suffix does not follow the syntax described in IEEE 488.2 7.7.3.2, or the suffix is
inappropriate for this device.
Suffix too long
The suffix contained more than 12 characters (see IEEE 488.2, 7.7.3.4).
Suffix not allowed
A suffix was encountered after a numeric element which does not allow suffixes.
Character data error
This error, as well as errors −141 through −148, are generated when parsing a character
data element.
Invalid character data
Either the character data element contains an invalid character or the particular element
received is not valid for the header.
Character data too long
The character data element contains more than twelve characters (see IEEE 488.2,
7.7.1.4).
Character data not allowed
A legal character data element was encountered where prohibited by the device.