Industrial environments have complex connectivity needs. Industry 4.0 means that devices and cloud applications are connected, whether they’re on one shop floor, or operating across multiple sites. Connectivity demands are not universal but differ in terms of bandwidth, latency, reliability, mobility and power consumption. So, the means of connectivity also vary.

Read more at https://www.smartindustry.com/tools-of-transformation/industrial-networks/article/33002451/industry-40-networking-choices-should-not-create-security-holes