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A gateway for communication between cloud server and plc PPI

A cloud server and gateway technology, which is applied in the field of computer communication, can solve the problems of heavy tasks, affecting the real-time performance of system data collection, the timeliness of command execution, and the limited communication speed of cloud servers, so as to reduce traffic, improve convenience, and reduce The effect of the task of communication

Active Publication Date: 2019-06-21
江苏中天电气有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In essence, the communication between the cloud server and the S7-200 PLC is completely serial communication, and the communication speed of the cloud server is limited by the ability of PLC PPI communication
When there are many remote monitoring object points and multiple users access multiple object points at the same time, the task of communication between the cloud server and the remote PLC will be very heavy, which will seriously affect the real-time performance of system data collection and command execution

Method used

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  • A gateway for communication between cloud server and plc PPI
  • A gateway for communication between cloud server and plc PPI
  • A gateway for communication between cloud server and plc PPI

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Embodiment Construction

[0020] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in more detail below in conjunction with the accompanying drawings of the present invention. Apparently, the drawings shown are only for better illustrating the technical solution of the present invention, not the best configuration of the present invention, and the illustrated embodiments are only part of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] The invention provides a gateway and a data exchange method for communication between a cloud server and a PLC PPI, wherein the gateway includes a microprocessor, a 3G / 4G wireless module, an RS485 interface module, a Wifi module, a storage module, a s...

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Abstract

The invention provides a gateway for communication between a cloud server and a PLC PPI, including a microprocessor, a 3G / 4G wireless module, an RS485 interface module, a Wifi module, a storage module, a status display module and a power supply module. The microprocessor applies to the cloud server with a fixed IP address to establish a communication connection through the 3G / 4G wireless module. After the communication connection is established, it listens to and receives the operation instructions from the cloud server in the 3G / 4G wireless module, and generates commands in the PPI protocol format after parsing package, using synchronous communication to complete the operation of reading and writing data in the PLC, and then send the operation results to the cloud server through the 3G / 4G wireless module. The gateway of the invention can greatly reduce the task of communicating between the cloud server and the remote PLC, and improves the convenience of the cloud server remotely accessing the PLC.

Description

technical field [0001] The invention belongs to the technical field of computer communication, and in particular relates to a gateway for communication between a cloud server and a PLC PPI. Background technique [0002] With the development of automation, computer, communication, and network technology and the popularization of Internet applications, computer control and automation systems have gradually moved from stand-alone control, field bus, and industrial Ethernet to Internet cloud control systems. As the core of the underlying field control - PLC system is still irreplaceable in the current control field because of its ease of use and high reliability, especially the small PLC system, in the electric power, chemical industry, environmental protection, railway, gas, water, medical and other industries It is often used as a remote data acquisition and control unit. The more popular and mature application mode is that the server communicates with the PLC remotely throug...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/66H04L29/08H04L29/06H04L29/12H04W84/12G06F13/42
CPCH04L12/66H04L67/025H04L67/10H04L69/161H04W84/12G06F13/4286G06F2213/0002H04L61/5007
Inventor 夏明亮韩磊
Owner 江苏中天电气有限公司
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