Status and Error Messages
B-9
-420,
“
Query UNTERMINATED
”
This error occurs when you address the instrument to talk, and there is no response message
to send. The most likely causes are:
•
Not sending a query.
You must send a valid query to the instrument before addressing it
to talk.
•
Sending an invalid query.
If you have sent a query and still get this error, make sure that
the instrument is processing the query without error. For example, sending an ill-
formed query that generates an error -113,
“
Unde
fi
ned header
”
and then addressing the
instrument to talk will generate an error -420,
“
Query UNTERMINATED
”
as well.
•
Valid query following an invalid command.
This situation can occur when you send
multiple commands or queries (program message units) within one command string
(program message). When the Model 6430 detects an error in a program message unit,
it discards all further program message units until the end of the string; for example:
:SENS:DATE?; :SENS:FUNC?
In the above program message, the program message unit :SENS:DATE? will generate
error -113,
“
Unde
fi
ned header,
”
and the Model 6430 wi|| discard the second program
message unit :SENS:FUNC? even though it is a valid query.
Содержание 6430
Страница 26: ......
Страница 32: ......
Страница 78: ...2 14 Connections ...
Страница 98: ...3 20 Basic Source Measure Operation ...
Страница 138: ...5 30 Source Measure Concepts ...
Страница 156: ...6 18 Range Digits Speed and Filters ...
Страница 168: ...7 12 Relative and Math ...
Страница 176: ...8 8 Data Store ...
Страница 202: ...9 26 Sweep Operation ...
Страница 248: ...11 22 Limit Testing ...
Страница 310: ...16 6 SCPI Signal Oriented Measurement Commands ...
Страница 418: ...17 108 SCPI Command Reference ...
Страница 450: ...18 32 Performance Verification ...
Страница 477: ...A Specifications ...
Страница 489: ...B StatusandErrorMessages ...
Страница 498: ...B 10 Status and Error Messages ...
Страница 499: ...C DataFlow ...
Страница 503: ...D IEEE 488BusOverview ...
Страница 518: ...D 16 IEEE 488 Bus Overview ...
Страница 519: ...E IEEE 488andSCPI ConformanceInformation ...
Страница 523: ...F MeasurementConsiderations ...
Страница 539: ...G GPIB488 1Protocol ...
Страница 557: ......