PLC-based process flow monitoring device

Abstract

The invention discloses a PLC-based process flow monitoring device. The monitoring device comprises a display module, a control module, a power supply module, a data processing module, a heat dissipation module and a data communication module. According to the invention, by use of the Siemens S7-300 PLC, real-time monitoring of the process flows is achieved and an acquirer, a programmable controller, a switch power supply, an acquisition module and a network communication device in a PLC control box are integrated together. A control program is imported into a PLC chip, so all kinds of functions of the process flow monitoring can be achieved without a far-end industrial personal computer. The power supply module has a voltage stabilizing source and is capable of converting AC 220V civil electricity into DC 24V electricity, thereby facilitating power supplying to parts of modules. By additionally arranging the heat dissipation module, heating of devices is effectively controlled and electricity utilization safety is ensured. The device data supports flexible transmission of various kinds of media. The device monitoring data supports flexible checking of local and mobile ends. The monitoring device can be widely applied in an instrument automatic system in smart factories.

Description

【Technical field】 [0001] The invention discloses a process flow monitoring device based on PLC, which belongs to the field of intelligent instruments. 【Background technique】 [0002] With the development of smart buildings, the Internet of Things and computer information technology, more and more equipment and hardware products have been added to smart factories, and intelligence has gradually developed from a concept to a concept and reality. my country has a vast territory and many factories. With the installation and deployment of automation instruments, remote monitoring of process flow is imperative, especially in large factories or factories with certain risks. [0003] At present, large-scale factories have installed a large number of automated instruments for the convenience of monitoring the process. Restricted the work efficiency of the factory area. The concept of smart factories has been promoted in power plants, chemical plants, and nuclear power plants. Data ...

AI Technical Summary

Problems solved by technology

However, due to the complex network environment in the factory area, the data transmission is unstable; the automated supervision of the process requires the use of collectors, programmable controllers, switching power supplies, acquisition modules and network communication equipment, which occupy space, cost money, and have low integration

Supervisors can only monitor the process flow of the equipment on the industrial computer in the main control room. If they leave the main control room and are on the factory site, they cannot realize remote monitoring of the equipment.

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