Title:
METHOD FOR INFORMATION TRANSMISSION AND RECEPTION BETWEEN CONTROLLERS
Document Type and Number:
Japanese Patent JPS5983202
Kind Code:
A
Abstract:
PURPOSE:To input accurately and easily information corresponding to a process state to controllers by confirming that the state is not changed in input information to transmit and receive information between controllers. CONSTITUTION:Two controllers, for example, a main controller 1 and a slave controller 2 to which information corresponding to the state of a process is inputted independently of each other are provided. When information is transmitted and received between these controllers in case of the restart of the main controller 1 or the slave controller 2, a synchronizing signal is outputted from one to the other of these controllers to acquire the synchronization of information input processings between controllers. In each of these controllers, it is confirmed that the state is not changed in input information. By the interruption based on this confirmation, information is transmitted from one to the other of controllers. By this processing, information corresponding to the process state is inputted accurately and easily to controllers.
Inventors:
HIROTA NORIAKI
KAWAI YOSHINORI
KAWAI YOSHINORI
Application Number:
JP19242682A
Publication Date:
May 14, 1984
Filing Date:
November 04, 1982
Export Citation:
Assignee:
HITACHI LTD
International Classes:
G05B9/03; G05B7/02; G06F11/16; H04Q9/00; (IPC1-7): G05B7/02; G05B9/03; H04L11/00; H04Q9/14
Attorney, Agent or Firm:
Tatsuyuki Unuma (3 others)