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花生壳一类的可以用。没有vpn稳定。万泉河版主做了wanq路由器,现场和远端各一个,能联网就行了。
WL-550V-LT Wireless Modem can be widely applied to Oil & Gas, Coal-Mining, Iron & Steel,Water, New-Energy and other industrial system. Connected your PLC, VFD, DCS, instruments via the modem. Use the GPS function get the machine’s location.
WL-550V-LT Supports dynamic or static IP addressed assigned by cell carriers. VPN Client and DDNS Client has been designed for the module, PLC program can be uploaded/downloaded at anyplace. This enables configuration, programming or debugging of almost any industrial device from any location. you can use your regular configuration software just as you would if you were on site. Allowing HMI, PLCs, sensors etc to communicate with each other. Remote Access removes boundaries, eliminates the need for time consuming site visit and provide a network infrastructure suitable for today’s “always-on” society.
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