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An automated process safety monitoring system based on modbus protocol

A process safety and monitoring system technology, applied in the direction of comprehensive factory control, electrical program control, comprehensive factory control, etc., can solve the problems that the Modbus protocol cannot communicate with each other, and cannot realize direct linkage control of slave machines, so as to improve safety redundancy , simple structure, and the effect of improving timeliness

Inactive Publication Date: 2019-04-30
张晓华 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This solution includes a monitoring master, a full-featured slave and a simple-function slave. Different types of slaves are responsible for different tasks. The full-function slave has monitoring and linkage control functions. The machine is bound with the full-featured slave machine to solve the problem that the Modbus protocol cannot realize the direct linkage control between the slave machines because the slave machines cannot communicate with each other.

Method used

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  • An automated process safety monitoring system based on modbus protocol
  • An automated process safety monitoring system based on modbus protocol
  • An automated process safety monitoring system based on modbus protocol

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Embodiment Construction

[0026] The present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. Such as figure 1 As shown, an automated process safety monitoring system based on the Modbus protocol, as a safety protection system in the automated production control process, is independent of the automated production process control, and monitors the safety of the production device online in real time. In some cases, it does not need to go through the production automation control system, and the process safety monitoring system directly sends an interlock signal to protect the on-site equipment.

[0027] The system consists of a monitoring host, a full-featured slave and a number of simple-function slaves. The full-function slave has monitoring and interlock control functions, and the simple-function slave only has the monitoring function. The slaves are bound and set to form a functional cluster. The monitoring host is co...

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Abstract

The invention discloses an automation process safety monitoring system based on a Modbus protocol. The automation process safety monitoring system comprises a monitoring main machine, a full-function slave machine and simple-function slave machines. The full-function slave machine has a monitoring function and a linkage control function, and each simple-function slave machine only has a monitoring function. In automation process safety monitoring, the full-function slave machine is bound with a plurality of appointed simple-function slave machines, the full-function slave machine starts a Modbus communication network message to recognize a receiving program, monitoring data sent by the bound simple-function slave machines are analyzed out, whether the monitoring signal parameters of the bound simple-function slave machines are normal is judged, and linkage interlock protection is carried out if abnormity is found. The automation process safety monitoring system solves the problem that direct linkage control between slave machines cannot be achieved due to the fact that the slave machines cannot communicate with each other. Furthermore, the timeliness of the monitoring system is improved.

Description

technical field [0001] The invention relates to the field of automation control, in particular to a safe operation monitoring system in the automation control process. Background technique [0002] With the rapid development of automation control technology, automation production and control equipment are widely used in various fields of industrial and agricultural production. This highly automated and integrated development trend puts forward higher requirements for safe operation in the automation control process. [0003] Modbus communication protocol is a bus protocol used in industrial field. It is famous for its simple and compact frame format, simple user system development and easy use. In 2008, my country promulgated GB / T 19582-2008 "Industrial Automation Network Based on Modbus Protocol "Specification" national standard, which further promotes the popularization of the application of Modbus communication protocol in the field of automation control in my country. Ho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 张晓华
Owner 张晓华
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