Technical data

Getting Started with Remote Operation 1
Agilent N8211A/N8212A Performance Upconverter Synthetic Instrument Module, 250 kHz to 20 / 40 GHz 23
Error Messages
If an error condition occurs in the N8211A/N8212A, it is reported to the SCPI (remote
interface) error queue.
For additional general information on troubleshooting problems with your connections,
refer to the Help in the Agilent IO Libraries and documentation.
When accessing er ror message s using th e SCPI (remot e interface ) error queu e, the error numbers and the <erro r_descripti on> portions of the error qu ery response are displayed on the host terminal.
Error Message File
A complete list of error messages is provided in the file errormessages.pdf, on the CD-ROM
supplied with your instrument. In the error message list, an explanation is generally
included with each error to further clarify its meaning. The error messages are listed
numerically. In cases where there are multiple listings for the same error number, the
messages are in alphabetical order.
Error Message Types
Events generate only one type of error. For example, an event that generates a query error
will not generate a device-specific, execution, or command error.
Query Errors (–499 to –400) indicate that the instrument’s output queue control has
detected a problem with the message exchange protocol described in IEEE 488.2, Chapter 6.
Errors in this class set the query error bit (bit 2) in the event status register (IEEE 488.2,
section 11.5.1). These errors correspond to message exchange protocol errors described in
IEEE 488.2, 6.5. In this case:
Either an attempt is being made to read data from the output queue when no output is
either present or pending, or
Characteristic SCPI Remote Interface Error Queue
Capacity (#errors) 30
Overflow Handling Linear, first-in/first-out.
Replaces newest error with: -350, Queue overflow
Viewing Entries Use SCPI query SYSTem:ERRor[:NEXT]?
Clearing the Queue Power up
Send a *CLS command
Read last item in the queue
Unresolved Errors
*
* Errors that still exist after clearing the error queue. For example, unlock.
Re-reported after queue is cleared.
No Errors When the queue is empty (every error in the queue has been read, or the queue is
cleared), the following message appears in the queue:
+0, "No error"