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???
10/21/08 10:40
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#159230 - modbus frame error
Responding to: ???'s previous message
I am using slave as 8051 microcontroller (c8051f000),
I completed and tested the code and its not working.
Iam using simulator as a master and i am receivng slave id and function code at controller rx pin. but when i am sending data to master iam getting frame error and read error, i suspect that it might due to timing and I spent few days but I am still not able to solve it. This project is to receive command from any PC (serial port 0) with RTU format.plz help to solve this


thnks
saritha


List of 15 messages in thread
TopicAuthorDate
modbus for 8051 controller/At89c52            01/01/70 00:00      
   What help, exactly, do you require?            01/01/70 00:00      
      Modbus            01/01/70 00:00      
         Russel had code            01/01/70 00:00      
            modbus communication            01/01/70 00:00      
               Start in this way            01/01/70 00:00      
                  modbus frame error            01/01/70 00:00      
                     Post as code - or edit and correct            01/01/70 00:00      
      modbus RS485            01/01/70 00:00      
         Source code            01/01/70 00:00      
   modbus frame error            01/01/70 00:00      
      Real results contra expected            01/01/70 00:00      
         modbus            01/01/70 00:00      
            Frame error            01/01/70 00:00      
   board mạch            01/01/70 00:00      

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