Communication control system

一种通信控制、通信站的技术，应用在传输系统、数字传输系统、安全通信装置等方向，能够解决兼容性不够、不能充分满足开放协议通信要求、不能充分地满足实时性和可靠性等问题
CN1894901AActive Publication Date: 2007-01-10YOKOGAWA ELECTRIC CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
YOKOGAWA ELECTRIC CORP
Publication Date
2007-01-10

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Abstract

A communication control system is provided that performs communications satisfying a request for industrial applications and a request for open protocol communications at the same time. To this end, in the invention, a high-priority communication section performing critical communications to provide real time property and reliability, and a low-priority communication section performing communications based on an open standard protocol coexist in a same communication station.
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Description

technical field

[0001] The present invention relates to a communication control system used in a distributed control system and the like. Background technique

[0002] Distributed control systems are used for plant operation control in a variety of fields such as petrochemical, steel, pulp, food, pharmaceutical, and electric power.

[0003] figure 1 An example structure of a general distributed control system is shown.

[0004] refer to figure 1 , the operation monitoring device 1 and the controller 2 are connected to the control bus 3 . The controller 2 controls the plant 4 under the monitoring of the operation monitoring device 1 . The operation monitoring device 1 is in charge of operating and monitoring the plant. The operation monitoring device 1 displays a screen to perform control operations and monitoring. Depending on the size of the plant, there are several controllers distributed in the plant. The operation monitoring device 1 and the controller 2 communica...

Claims

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