FieldTalk Modbus® Master Protocol Library
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MODBUS/TCP Protocol


Detailed Description

The MODBUS/TCP master protocol is implemented in the class MbusTcpMasterProtocol.

It provides functions to establish and to close a TCP/IP connection to the slave as well as data and control functions which can be used after a connection to a slave device has been established successfully. The data and control functions are organized different conformance classes. For a more detailed description of the data and control functions see section Data and Control Functions for all Protocol Flavours.

Using multiple instances of a MbusTcpMasterProtocol class enables concurrent protocol transfers using multiple TCP/IP sessions (They should be executed in separate threads).

See section The MODBUS/TCP Protocol for some background information about MODBUS/TCP.

See section Using MODBUS/TCP Protocol for an example how to use the MbusTcpMasterProtocol class.


Compounds

class  MbusTcpMasterProtocol
 MODBUS/TCP Master Protocol class. More...