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Error -410 in answer of 34401A command (SCPI RS-232)

Question asked by bufarrio on Mar 14, 2014
Latest reply on Mar 18, 2014 by Dr_Frank
Hello everyone,

I am trying to connect my PC to a 34401A trhough SPCI commands (RS232). I have no problems to send some commands as SYST:REM, SYST:LOC, *RST, etc. When I send these commands the multimeter works in consequence. My problem is about commands which required a answer, for example, If I send the command "MEAS:VOLT:DC? 10,0.001" an error appears with a value of -410, every command which required an answer has the same result ( "*IDN?", "CONF?", etc). User manual explains that this error is:

Query INTERRUPTED
A command was received which sends data to the output buffer, but the
output buffer contained data from a previous command (the previous
data is not overwritten). The output buffer is cleared when power has
been off, or after a *RST (reset) command has been executed.

So I apply it a reset (Even a clear too ("*CLS") ) before the command. The steps I follow are:

SYST:REM
*RST
*CLS
MEAS:VOLT:DC? 10,0.001 (Or any command wich  requiered an answer)

I've tried also:

*RST
*CLS
SYST:REM
*RST
*CLS
MEAS:VOLT:DC? 10,0.001 (Or any command wich  requiered an answer)

And a lot of different combinations


Someone know what's happening?? Do you have any idea what should I do? 

Thank you so much!  

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