Agilent Technologies 8163A Programming Manual page 260

Error Codes
Table 18 Overview for Supported Strings
New/Old/Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
260
Error
Number String
-150 "String data error"
[This error, as well as errors -151 through -159, are generated when pars-
ing a string data element. This error message is used when the device can-
not detect a more specific error.]
-151 "Invalid string data"
[A string data element was expected, but was invalid for some reason (see
IEEE 488.2, 7.7.5.2); for example, an END message was received before the
terminal quote character.]
-158 "String data not allowed"
[A string data element was encountered but was not allowed by the de-
vice at this point in parsing.]
-161 "Invalid block data"
[A block data element was expected, but was invalid for some reason (see
IEEE 488.2, 7.7.6.2); for example, an END message was received before the
length was satisfied.]
-168 "Block data not allowed"
[A legal block data element was encountered but was not allowed by the
device at this point in parsing.]
-170 "Expression error"
[This error, as well as errors -171 through -179, are generated when pars-
ing an expression data element. This particular error message is used
when the device cannot detect a more specific error.]
-171 "Invalid expression"
[The expression data element was invalid (see IEEE 488.2, 7.7.7.2); for ex-
ample, unmatched parentheses or an illegal character.]
-178 "Expression data not allowed"
[A legal expression data was encountered but was not allowed by the de-
vice at this point in parsing.]
-181 "Invalid outside macro definition"
[Indicates that a macro parameter placeholder ($<number) was encoun-
tered outside of a macro definition.]
-183 "Invalid inside macro definition"
[Indicates that the program message unit sequence, sent with a *DDT or
*DMC command, is syntactically invalid (see IEEE 488.2, 10.7.6.3).]
Agilent 8163A/B, 8164A/B & 8166A/B Mainframes, Fifth Edition
GPIB Error Strings