Using  4G LTE established Remote PLC network

• Solving issues： Solved the system problems of  PLC wiring and communication 

• Solutions：Using 4G LTE VPN tunnel of  controller for data exchange via cloud

• Methods：

• The controller is set as VPN CLIENT to establish a connection to Maxlong cloud server

• Cloud Server assists in the exchange of packets, direct connection and establishment of VPN Tunnel structure to form a local area network between PLC and PLC

• Support  Layer 2  

• Solved long-distance construction and wiring issues