Remote service access allows you to implement programming, configuration or diagnostics of automation equipment connected to WebHMI, for example, controllers or frequency drives remotely with the help of standard utilities and development tools of the equipment manufacturer.

The scheme of work is given below. To implement remote service access, VPN technology is used. Both WebHMI and the developer's computer must be connected to the same VPN network, and in the WebHMI network settings, the appropriate rules have to be set for translating network addresses from the VPN network to the target equipment network.

In case the equipment uses a serial port instead of Ethernet, it is enough to install the virtual COM port driver on the computer and use the built-in WebHMI function Virtual COM port. The user can either setup his own VPN network or use the network provided by the Level2 system (recommended).

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