Modicon M251 Plc Page 6 Modicon M251 logic controllers

6 Presentation (continued) Modicon M251 logic controllers Communication via modem and router The communication via modem and router offer is dedicated to the following applications: b Synchronization between remote machines; direct data exchange between controllers. b Remote maintenance; access to the controller via the SoMachine programming software. b Remote control and monitoring of machines; receipt of information and sending commands on a GSM/UMTS phone (1). This offer comprises a Schneider Electric modem, GSM/UMTS modem and a VPN router made by eWon. For the modem and router, please consult our website www.schneider-electric.com. (1) Global System Mobile (2G)/Universal Mobile Telecommunications System (3G). Communication via modem Programming PC with SoMachine Basic/SoMachine software TM221M ppp TM221C ppp TM241C ppp TM251C ppp GSM/UMTS link Serial link Communication via router Programming PC with SoMachine Basic/SoMachine software Firewall TM221M ppp TM221C ppp TM241C ppp TM251MES p Ethernet link

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