Agilent Technologies ESA-E Series Programmer's Manual page 351

Error Messages
-199 to -100: Command Errors
-100 Command error
This is a generic syntax error for devices that cannot
detect more specific errors . The code indicates only that
a command error as defined in IEEE 488 .2, 11.5.1.1.4
has occurred.
-110 Command header erro r
An error was detected in the header. This message is
used when the device cannot detect the more specific
errors described for errors -111 through -119 .
- 104 Data type error
The parser recognized a data element that is not
allowed . For example, numeric or string data wa s
expected, but block data was encountered .
- 123 Exponent too large
The magnitude of an exponent was greater than 3200 0
(see IEEE 488 .2. 7 .7.2.4 .1) .
- 170 Expression data error
This error, as well as errors -171 through -179, i s
generated when parsing an expression data element .
This particular error message is used if the devic e
cannot detect a more specific error.
- 178 Expression data not allowed
A legal expression data was encountered, but was no t
allowed by the device at this point in parsing.
- 105 GET not allowed
A Group Execute Trigger was received within a
program message (see IEEE 488 .2, 7 .7) . Correct the
GPIB controller program so that the GET
does not occur
within a line of GPIB program code.
-111 Header separator error
A character which is not a legal header separator was
encountered while parsing the header.
Chapter 7 7-23