This article explains the telecontrol platform for industrial installations developed by CARTIF Foundation. Using this system it will be able to send control orders and receive notification of alarms from the PLC thanks to SMS (Short Messages System) messages which use GSM technology. In case of requiring a greater flow of data it will use telephone line combined with MODBUS protocol. All this will enable us to monitor and control any industrial installation with a very low cost.
This paper describes an efticient Ethemet Medium Access Control (MAC) design, according to IEEE 802.3 standards for Fast Ethernet (100 M p s ) an IOBase-T (IO Mbps) implementations in full and half duplex modes, suitable for re-use as Intellechral Property (IP) core in
Svstem-on-Chip (SOC) designs. The description and contributed results exhibit that the main advantages of this design reside in a really low logic cost keeping a great tolerance far external clock changes, a suppression of high working clack ,frequencies and domains, and a high confgurability and flexibility for master processors interface.0-7803-8160-2/03/$17.00 02003 IEEE.
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