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IO Error while querying to measure AC voltage and Frequency

Question asked by srinivasjr04 on Mar 10, 2011
I am using Agilent 34405A DMM, I am querying the DMM to measure AC voltage and Frequency of the input signal, some times I am getting an IO error.

I have looged the communication with Event Logger.

Here with I am attaching snapshots of the error events.

when ever this error occurs, I am forced to restart my application as well the DMM.

Please any one can give, on what occasion the IO error normally occurs. how to recover from this, with out restarting the DMM and my application?