Patent ID: 6708069
Filing Date: 2004-03-16
Classification: C04B,H04L

Abstract:
A distributed control system in which a plurality of nodes are connected to a transmission line, each node controlling components connected to this node and transmitting messages to each of the other nodes,wherein a controller provided in each node includes a processor for controlling circuits in said controller and message-transmission with other nodes, a plurality of transmission processors for selecting messages taken-in from said transmission line based on predetermined message-receiving conditions and for storing a taken-in message to be received, and a transceiver connected to said transmission line, for taking in each of said messages transmitted on said transmission line and for sending each of said taken-in messages to said transmission processors, said plurality of processors coupled in parallel with said transceiver; wherein each transmission processor includes a message storing part, a registration part for registering data of message-receiving conditions, a comparison part for comparing contents of said condition-identifying portions in each of said taken-in messages with said data of message-receiving condition registered in said registration part, a received message part for storing a message to be received in this node, and a control part for determining whether or not each of said messages is to be received in this node based on a result of said comparison and for transferring taken-in messages to said received-message storing part; and wherein said control part includes a register for storing a position and a size of each one of condition-identifying portion in each message sent by each node, said one being allocated to a transmission processor including this control part.