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modbus crc calculation

hi,

  can anyone help how to go through full concept of crc in modbus rtu as i am not able to understand the concept clearly. please give examples.

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If you're still around, you would be better off posting this in the support forums here:

http://forums.ni.com/t5/Industrial-Communications/bd-p/260

However, if you're using one of the modbus APIs you shouldn't have to deal with the crc at all. It should be handled for you.

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