MODBUS APPLICATION PROTOCOL SPECIFICATION V1

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MODBUS -IDA December 28, 2006 1/51 MODBUS APPLICATION PROTOCOL SPECIFICATION CONTENTS 1 Introduction ........................................ ........................................ ...................................2 Scope of this document ........................................ ........................................ ........2 2 Abbreviations.

The MODBUS protocol defines a simple protocol data unit (PDU) independent of the underlying communication layers. The mapping of MODBUS protocol on specific buses or network can introduce some additional fields on the application data unit (ADU).

  Applications, Protocol, Mapping, Ombud, Modbus application protocol