ASYNCHRONOUS NETWORK SYSTEM, SYNCHRONOUS INFORMATION TRANSMISSION DEVICE, AND SYNCHRONIZING METHOD AND PROGRAM OF ASYNCHRONOUS NETWORK SYSTEM

摘要

PROBLEM TO BE SOLVED: To solve the problem that all devices constituting a system can be placed in synchronous operation in single operation timing, but can not be placed in synchronous operation in different operation timing.

SOLUTION: A synchronous network system comprises an asynchronous network and a plurality of information processors connected to the asynchronous network. This asynchronous network system is provided with a plurality of synchronism information transmitting devices which multicast synchronism information needed for corresponding multicast groups through the asynchronous network so that the synchronism information transmitting devices correspond to a plurality of multicast groups set in the system.

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