What’s the Difference Between Traditional and Hosted VPNs?

Download this article as a .PDF Connecting programmable logic controllers (PLCs), human machine interfaces (HMIs), and other automation system components to the Industrial Internet of Things (IIoT) for remote access is important for many manufacturing plants, and to the machine builders providing equipment and services to these plants. With access point mode, wireless devices connected to the router are on the LAN network, allowing plant personnel to access the control system local area network (LAN) wirelessly, rather than opening the panel to access the physical LAN connection ports. Configuring firewalls Addressing subnet conflicts across sites with similar network design Controlling user management and access Implementing event logging Creating and managing security certificates Applying advanced networking knowledge Configuring clients at each connection point Even with these challenges, a tradition VPN is preferred if the required IT staff is available and the application requires high data bandwidth, or if there is a requirement to not rely on a vendor for a hosted VPN solution. Each printing press has a full-featured PC-based HMI installed to provide local viewing and data storage, with high-speed remote access to the HMI and its stored data required at all times. [...]large amounts of operating data must be continuously transmitted to the remote corporate control center.