SERC816/TR

SERC816/TR is a SERCOS interface controller. It is an integrated circuit for SERCOS interface communication systems. The SERCOS interface is a digital interface for communication between systems that have to exchange information cyclically at short, fixed intervals (62.5s to 65ms). It is appropriate for the synchronous operation of distributed control or test equipment (e.g. connection between drives and numeric control). A SERCOS interface communication system consists of one host and several servers. These units are connected by a fibre optical ring. This ring starts and ends at the host. The server regenerate and repeat their received data or send their own telegrams. By this method, the telegrams sent by the host are received by all servers while the host receives data telegrams from the server. The optical fibre assures a reliable high-speed data transmission with excellent noise immunity.

• Single-chip controller for SERCOS interface, timing control signals
• Real time communication for industrial control systems, automatic service channel transmission
• 8/16bit bus interface, Intel and Motorola control signals, dual port RAM with 2048 word *16bit
• Data communications via optical fibre rings, RS 485 rings and RS 485 busses
• Maximum transmission rate of 16Mbaud with internal clock recovery
• Internal repeater for ring connections, full duplex operation
• Automatic transmission of synchronous and data telegrams in the communication cycle
• Watchdog to monitor software and external synchronization signals
• Power dissipation is 850mW typical at (16Mbaud, MCLK = 64MHz, Tamb = -40°C to +85°C)
• Operating temperature range from -40°C to 85°C, PQFP100 package

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