Error Messages And Troubleshooting - R&S ZNC Series User Manual

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R&S ZNC/ZND

10 Error Messages and Troubleshooting

10.1 Errors during Firmware Operation
An error generally causes the analyzer to display a tooltip across the lower part of the
screen. The tooltip provides a textual description of the error, e.g.:
The errors can be divided into four categories:
●
Remote errors (SCPI errors) can occur during the execution of a remote control
program. They include an error code, followed by the short description of the error.
Remote errors are specified and described in the SCPI standard; they are cleared
upon *CLS.
●
Software errors (setting errors) can occur, e.g., if numeric entries in an analyzer
dialog are incompatible with each other or with the current analyzer state. These
errors are self-explanatory and easy to correct.
●
Hardware errors indicate an incorrect hardware state. Some of the hardware errors
cause the instrument to be switched off to avoid damage. Hardware errors with
possible causes and remedies are listed in the following sections.
●
Exceptions indicate anomalous or exceptional events that were not properly han-
dled by the R&S ZNC/ZND firmware.
Troubleshooting SCPI errors
A misspelled command header causes SCPI error –113, "Undefined
header;..."; a misspelled parameter causes SCPI error –141, "Invalid
character data;...". The GPIB explorer provides a list of all supported com-
mands and their character data parameters; see
on page 466.
Hardware error categories
Hardware errors can be detected at various stages of the start-up or measurement pro-
cedure.
●
Configuration errors occur on start-up of the analyzer, e.g. if a hardware module or
configuration file cannot be detected. Configuration errors cause an entry in the
error log ("SYSTEM > SETUP > Setup > Info... > Error Log").
●
Asynchronous errors can occur any time while the analyzer is operating. The ana-
lyzer is checked periodically for asynchronous errors.
●
Measurement errors are due to inadmissible hardware settings and states during
the measurement process.
User Manual 1173.9557.02 ─ 37
Error Messages and Troubleshooting
Errors during Firmware Operation
Chapter 7.1.2, "GPIB Explorer",
967