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 SoMachine programming software b Remote control and monitoring of machines; receipt of information and sending commands on GSM phone. This offer comprises 2 Schneider Electric modems (PSTN modem, GSM modem) and a VPN router made by eWon . For modems, router, and connection cables, see page 24. M251 logic controller GSM modem 2 1 3 4 5 6 7 8 9 10 2 1 3 4 5 6 7 8 9 10

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