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Smart Distributed System (SDS) protocol was developed by Honeywell and is supported by Holjeron. SDS is an open event-driven protocol used over Controller area network based industrial networks. It is used for a highly reliable Smart device-level network. The SDS Application Layer Protocol is optimized for smart sensors and actuators, where configuration, diagnostic, and process information can be embedded cost-effectively in a very small footprint. ==Key features== * Supports communication rates up to 1 Mbit/s. * 1500 ft maximum distance at 125 kbit/s (longer with Bridge). * Can support 64 maximum electrical loads (Nodes) per network without repeater & 126 with repeater. * Uses 12-24VDC, 2 power wires + 2 communication wires + shield * Multiple physical layer topologies * Can have 126 logical addresses (logical devices) - not related to physical location on the network * Each logical device can have 32 objects containing attributes, actions and events * Proven event driven architecture for maximum throughput (<1ms) * Event-Driven, Master-Slave, Multicast and Peer-to-peer Services * Network heartbeat to ensure device health every 2.5 seconds * Have Robust Network Management capabilities (Microsoft architecture) 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「SDS Protocol」の詳細全文を読む スポンサード リンク
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