What is the Network and why use it?

In the real meaning of the word  Network is collections of independent electronic devices or machines that connected Through one media together for exchange informations. independent, meaning of that machine can work independently without any connection to others and only using network for exchange informations. network  divided to two large categories,Computer Network and Industrial Network. creation of network in each categories have some features for human, like be cost effective for some of duties.


                                                                                                              Industrial network Switch                     Computer network switch
  • Computer Network

We have a computer network With the make a connection between at least one computer to other computers. in this network we have to make convenient topology for data transactions between all of members, like point to  point ,bus, star, ring, mesh, tree, hybrid and daisy chain.

Some of the advantage of Computer network:

  • Communication
  • Data sharing
  • Instant and multiple accesses
  • Video conferencing
  • Internet Service
  • Photographs and large files
  • Broad casting
  • Saves Cost
  • Remote access and login
  • Flexible
  • Provides broader view
  • Data transmission
  • Reliable


Computer Network works with types of reference models: OSI and TCP/IP that includes some layers, and use of layer by layer make some traits like below:

  • Interoperability
  • Greater Compatibility
  • Better Flexibility
  • Flexibility and Peace of Mind
  • Increased Life Expectancy
  • Scalability
  • Mobility
  • Value Added Features
  • Cost Effective Quality
  • Modularity
  • The Graduated, Blended Approach to Migration
  • Standardization and Certification
  • Task Segmentation
  • Portability
  • Compartmentalization of Functionality
  • Side-Kicks
  • Reduced Debugging Time
  • Promotion of Multi-Vendor Development
  • Easier Binding Implementation
  • Enhanced Troubleshooting and Fault Identification
  • Enhanced Communications Flow and Support
  • Support for Disparate Hosts
  • Reduction layer effect on the others
  • Rapid Application Development (RAD)



  • Industrial Network

Industrial network is a network in an industrial environment and manufacturers are rapidly migrating to Industrial Ethernet technology for reach to industrial automation and control system. for many years ago communications between industrial equipment happened over an RS232 or RS485 in physical layers that working very slow and inflexible but this method was reliable for data transactions. industrial network applies especial standard and protocol for data communication to manufacturing control networks Using IEEE standards-based of the most important in industrial network have ability to connect different network such as linking Profibus to Ethernet in this link we can connect industrial equipment to computer equipment.

this picture show you type of intelligence Ethernet for automation control.

Industrial network have some features:

  • Using IP & Ethernet & TCP/IP
  • Using Power over Ethernet (PoE) technology
  • Using Ethernet instead types of serial interfaces like (RS232, RS422 or RS485)
  • Using Industrial Ethernet switches
  • Fast network redundancy in Industrial Ethernet
  • Most industrial Ethernet hardware working in wide temperature range
  • Wide range of industrial application work with Ethernet use TCP/IP
  • Mobile phone networks to communicate


one of the most useful industrial protocol is CAN(Controller Are Network) read more

 From Mohsen Najafi