Modbus Primer

In this course, about the Modbusprotocol, we begin with the history of the Modbus.�

You also get to know the data model of Modbus, in the other lections of this course,. This is explained on the basis of practical examples.�

One of the bases to the understanding of the Modbus of protocol are the so-called Function codes and their use. Hence, we devote ourselves to this in a special section and get to know together the most important Function codes in their full extent. We will understand what is a Request and a Response and how this is built up.�

Also, the construction of a cross communication is explained in Modbus and how the client / server model works. Building up on this knowledge the difference between Modbus RS485 and Modbus Ethernet is explained.�

We will end the course, by seeing the learned theory in practical examples.

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