PLZ-U Appendix A-23
A.6 Error Messages
A.6.1 Overview
Errors, when detected, are placed in the queue. The queue functions as a FIFO.
When the queue overflows, the last error in the queue is replaced by Error -350
(queue overflow). When all the errors are read from the queue, 0 (no error) is
returned for subsequent error queries.
When one of the following occurs, the error queue is cleared (section 11.4.3.4 in
IEEE 488.2).
• A *CLS command is received.
• The last item is read from the queue.
All negative values are reserved by the SCPI Standard. All errors specific to the
PLZ-U are positive values.
A.6.2 A List of Errors
Command errors
An <error/event number> in the range [ -199, -100 ] indicates that an IEEE 488.2
syntax error has been detected by the instrument's parser. The occurrence of any
error in this class shall cause the command error bit (bit 5) in the event status regis-
ter to be set.
Error Code Error Message Description
-100 Command error Command error. This is the generic syntax error.
-101 Invalid character A data element different from those that are allowed was encountered.
-102 Syntax error An unrecognized syntax was encountered in the command string.
-103 Invalid separator An invalid separator exists in the command string.
-104 Data type error The parser recognized a data element different from the one allowed.
-105 GET not allowed A Group Execute Trigger was received within a program message.
-108 Parameter not allowed More parameters were received than expected for the header.
-109 Missing parameter Fewer parameters were received than required for the header.
-110 Command header error An error was detected in the header.
-120 Numeric data error
This error is generated when parsing a data element which appears to
be numeric, including the non-decimal numeric types.
-130 Suffix error This error is generated when parsing a suffix.
-131 Invalid suffix
The suffix does not follow the syntax, or the suffix is inappropriate for
this device.
-134 Suffix too long The suffix of the numeric element is too long.
-138 Suffix not allowed
A suffix was encountered after a numeric element which does not
allow suffixes.
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