As another example, the global automotive industry produces countless different combinations of each vehicle model at an incredible rate. It’s typical for an assembly plant to produce a complete vehicle at a rate of more than one per minute.
Producing these countless different versions at such a pace demands a huge amount of flexibility and a great deal of bandwidth to cope with both the production instructions and the quality control. Most models today have literally thousands of different model configurations depending on customer option choice. To complicate things further, it’s not uncommon for one assembly plant to produce a variety of models. Again, it’s easy to see how this puts huge demands on the networking that deliver this information to the assembly line systems that ensure the correct parts are fitted on the correct vehicle.
As well as the sheer quantity of data that the Internet of Things (IoT) element of Industry 4.0 demands, there is also an interoperability question raised by the M2M (Machine to Machine) issue.
If our factories are full of machines prompting other machines to take action, we had better hope that those machines can talk to each other effectively without any compatibility problems.
In order to make sure that machine X can talk to machine Y we need to ensure that a rigorous conformance testing process is in place. You have to be confident that anything designed for the network, works with the network.
It’s for this reason that the CLPA devotes a great deal of effort to ensuring that our partners’ products have been tested to the necessary standards. We have created a global network of conformance testing centres that ensure no matter where a partner is located, they have access to convenient local conformance test labs that help speed their time to market.
The evidence is compelling - there is an installed base of over nine million CC-Link devices, but every year the CLPA only discovers a handful of instances of incompatibility.
refer to:http://www.connectingindustry.com/automation/the-networking-implications-of-industry-40.aspx