COMMUNICATION NETWORKS AND ROLES

Communication Networks and Roles

Communication Networks and Roles

Introduction

Communication networks founded on serial facts and figures transmission are the platform of up-to-date automation systems. Whether this is office automation or automation of constructing or process plants, the task continues habitually the same, swapping data between different apparatus or participants inside a system. Communication networks supply a number of benefits over schemes in which a point-to-point line endows only two participants to communicate with each other.

Roles of communication networks

Depending on the submission, i.e. manufacturing, process, agency or construction automation, the connection tasks to be performed vary in complexity and are occasionally even contradictory. The use of only one connection network would thus not yield optimum results. So the market offers very distinct systems and coach systems that are more or less tailored to a exact application. Aquite general classification benchmark is the expanse over which communication takes place. There are localized systems, LANs (Local Area Networks), as well as broadly circulated systems, WANs (Wide Area systems) (Fig. 1). With LAN, focus is put on very quick and mighty data exchange inside a in the local area constrained locality, whereas WAN should be adept to convey facts and figures on very different facts and figures newspapers and over some thousand kilometers.

Fig. 1: Radius of activity of connection networks

The Internet is an example for a wide locality network. This network is a worldwide group of greatly varying communication networks which in turn can comprise many subnetworks. Due to the expanding attachment of LANs to the Internet, facts and figures which was only in the local area accessible is now accessible at any location in the world. Latest developments endow plants utilising area bus connection to be remotely monitored and functioned by commercially available Internet browsers. Demands on connection networks disagree ...