Frame collision avoidance control method

Abstract

Abstract PURPOSE:To prevent the occurrence of collision of frames due to simultaneous timeout of plural stations by setting a timer count of a controller of a data communication system so as to be deviated from that of other station automatically, thereby allowing the user to eliminate the consciousness to other station. CONSTITUTION:A host processor 20 of a frame collision avoidance control system processes a data and a communication control processing unit 21 controls the communication. Moreover, a program group operating the unit 21 is stored in a network control program 22. A multiple address control section 23 of the program 22 controls the multiple address communication. Furthermore, a timer value is set to a multiple address communication control table 14 to supply it to transmission acknowledgement waiting timer start of the control section 23. The timer is set so as to diviate the value from the other station automatically, thereby eliminating the need for the user to be aware of the other station and preventing the occurrence of collision of frames due to simultaneous timeout of plural stations.

Inventors

• 👤 Kazuhiko Yamada

Bibliographic Details