Error Messages and Troubleshooting
R&S
®
ZNC
733
User Manual 1173.9557.02 ─ 13
8 Error Messages and Troubleshooting
8.1 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 three categories:
●
Remote errors (SCPI errors) may occur during the execution of a remote control pro-
gram. 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
generally 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 in order to avoid damage. Hardware errors
with possible causes and remedies are listed in the following sections.
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 commands
and their character data parameters; see
chapter 5.1.2, "GPIB Explorer"
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 analyzer
is checked periodically for asynchronous errors.
●
Measurement errors are due to inadmissible hardware settings and states during the
measurement process.
Errors during Firmware Operation
