Modbus, was Help?

  • Thread starter Burgoon, Frank J. [WPC/PIT]
  • Start date

Thread Starter

Burgoon, Frank J. [WPC/PIT]

Modbus ASCII and Modbus RTU are composed of messages which contain the same information. The ASCII version sends the message as ascii characters representing the hex bytes as a string. i.e 4 byte message composed of binary 0 1 2 3 is sent as ascii 00010203. The RTU version sends the same information but in binary, thereby using half as many bytes.

> > In the meantime does anyone know just what actually
> > hits the wire for Modbus RTU? I don't have anything handy that spells it
> > out.

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