Bnc 645 User Manual download pdf (Page 108)

108

7.4 Query Errors

-410 Query INTERRUPTED

A command was received, but the output buffer contained data from

a previous command (the previous data is lost).

-420 Query UNTERMINATED

A query command was sent to read the output buffer over the

interface, but no such command that generates data to the output

buffer was previously sent for execution.

-430 Query DEADLOCKED

An executed command generated too much data for the output buffer

and the input buffer is also full. The command continues to execute

but the data is lost.

-440 Query UNTERMINATED after indefinite response

The *IDN? command must be the last query command within a series

of commands in a command string.

7.5 Instrument Errors

501 Cross-isolation UART framing error

502 Cross-isolation UART overrun error

Internal hardware failure.

580 Reference phase-locked loop is unlocked

The PHAS:UNL:ERR:STAT has been turned on and the internal

phase-locked loop is currently unlocked.

7.6 Self-Test Errors

621 Self-test failed; square-wave threshold DAC

A possible malfunctioning DAC, failed DAC multiplexer (U803) channels,

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Bnc 645 User Manual Page 108