top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

VxWorks: What is modbus protocol? How it works?

+6 votes
476 views
VxWorks: What is modbus protocol? How it works?
posted Dec 10, 2013 by Vikas Upadhyay

Share this question
Facebook Share Button Twitter Share Button LinkedIn Share Button
I think you want to ask modbus not modus

1 Answer

+2 votes
 
Best answer

Modbus protocol is application layer protocol used for serial communication between devices, mainly to exchange data typical for the field of automation.

At this level Modbus is a stateless client-server protocol (e.g. much like HTTP), based on transactions, which consist of a request (issued by the client) and a response (issued by the server). In the field where this protocol is usually applied, there exists a concept that is one of the possible schemas governing the lower level communication behavior on a network using a shared signal cable: Master-Slave. To prevent confusion, the following directed relations describe Master-Slave in terms of the Client-Server paradigm:

the Master is a Client
the Slave is a Server

answer Feb 5, 2014 by Anuj Yadav
...