Cyclic data communication system

摘要

A data communication system carries out transmission and reception of periodic data between a plurality of computers, and especially an improved data communication system which aims at more effective utilization of a system bus in each computer and which also aims at more effective utilization of a data transmission channel transmitting periodic data, so that the load imposed on the system bus during transfer of periodic data in each computer can be minimized, and the rate of occupation of the data transmission channel during transmission and reception of periodic data can also be minimized.