Error Messages 5
Keysight 34970A/34972A User’s Guide 237
-420 Query UNTERMINATED
The instrument was addressed to talk (i.e., send data over the interface) but a
command has not been received which sends data to the output buffer. For
example, you may have executed a CONFigure command (which does not
generate data) and then attempted to read data from the remote interface.
-430 Query DEADLOCKED
A command was received which generates too much data to fit in the output
buffer and the input buffer is also full. Command execution continues but all
data is lost.
-440 Query UNTERMINATED after indefinite response
The *IDN? command must be the last query command within a command string.
The *IDN? command returns an indefinite length string which cannot be
combined with any other query command. Example: *IDN?;*STB?