Agilent Technologies E1406A, User'S Manual And Scpi Programming Manual

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Appendix B
Agilent E1406A Error Messages
Using This Appendix
This appendix shows how to read an instrument’s error queue, discusses the
types of command language-related error messages, and provides a table of
all of the System Instrument’s error messages and their probable causes.
•
Reading an Instrument’s Error Queue . . . . . . . . . . . . . . . . . . Page 249
•
Error Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 250
•
Startup Error Messages and Warnings . . . . . . . . . . . . . . . . . Page 255
Reading an Instrument’s Error Queue
Executing the SYST:ERR? command reads the oldest error message from
the instruments error queue and erases that error from the error queue. . The
response format is:
<
error number
>
,"
<
error description string
>
".
Example error message; -113, "Undefined header"
Positive error numbers are specific to an instrument. Negative error
numbers are command language-related and discussed in “ Error Types” on
page 250. Command language-related errors also set a corresponding bit in
the Standard Event Status Register (refer to Chapter 4 for more information).
Example: Reading the
Error Queue
This program reads all errors (one error at a time, oldest to newest) from the
System instrument’s (command module) error queue. After reading each
error, that error is automatically erased from the queue. When the error
queue is empty, this program returns:
+0, "No error" .
10 OPTION BASE 1
20 DIM Message$[256]
Create array for error message.
30 REPEAT
Repeat next 3 lines until error
number = 0.
40 OUTPUT 70900;"SYST:ERR?" Read error number and message.
50 ENTER 70900;Code,Message$ Enter error number and message.
60 PRINT Code,Message$
Print error number and message.
70 UNTIL Code=0
80 END
Error codes read from the error queue are preceded by the number 21. For
example, error code 11 displayed on a monitor appears as
2111 if read
from the error queue instead.
Appendix B Agilent E1406A Error Messages 249