HP 1650B Programming Reference Manual page 332

Command Errors
Error Messages
c-2
-100 Command error (unknown command)(generic error)
-101 Invalid character received
-110 Command header error
-111 Header delimiter error
-120 Numeric argument error
-121 Wrong data type (numeric expected)
-123 Numeric overflow
-129 Missing numeric argument
-130 Non numeric argument error (character,string, or block)
-131 Wrong data type (character expected)
-132 Wrong data type (string expected)
-133 Wrong data type (block type #D required)
-134 Data overflow (string or block too long)
-142 Too many arguments
-143 Argument delimiter error
-144 Invalid message unit delimiter
HP 1650B/HP 16618
Programming Reference