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MODBUS RTU multiple request & response ( NI VISA )

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Re: MODBUS RTU multiple request & response ( NI VISA )

‎05-25-2014 09:37 PM

You're welcome.

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Re: MODBUS RTU multiple request & response ( NI VISA )

‎05-26-2014 12:02 AM

hi Ravens,

i have a problem again, on this communication sometimes error. i remember yesterday i tried this metering with no load ( no watt and no ampere ) if this device no load it can work correctly, but now i tried with load, and make it sometimes miss data. this is the video below :

https://drive.google.com/file/d/0B_94Z4CwsTYeWEJpZUx2cVJ0a2c/edit?usp=sharing

i tried to mod on MB Serial Master Query Read Input Register.vi by using Case Structure on Error. see that video and still didnt work. any suggestion ?

 

Thanks~

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