4 Error Messages
154 E4418B Power Meter User’s Guide
–420 Query UNTERMINATED
The power meter was addressed to talk (that is, to 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 data is lost.
–440 Query UNTERMINATED after indefinite response
The *IDN? command must be the last query command within a command string.
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