TRICONEX-3351 The application of touch screen TP and PLC in the production control of mixing building

The application of touch screen TP and PLC in the production control of mixing building (This article is reproduce

d in the official website of Xinjie)

TRICONEX-3351 This paper mainly introduces the practical application of the touch screen as the upper computer management system and PLC communication in the concrete mixing building, and mainly expounds the superiority of the system using the centralized control mode and the production method. The system is characterized by the touch screen through RS232 serial communication, to achieve the combination of management and control, easy to real-time monitoring, reduce the failure rate, greatly improve the construction production efficiency.
Keywords: touch screen PLC stirring floor application characteristics

1. TP Introduction

(1) Introduction
TP touch type industrial graphic display (referred to as touch screen) is a human-machine interface (foreign known as HMI or MMI) that connects humans and machines (mainly PLC), known as the face of PLC. It is an intelligent operation display that replaces the traditional control panel and keyboard. Can be used for parameter setting, data display, curve, animation and other forms to describe the automatic control process, and can simplify the PLC control program.
Compared with the analog instrument, the advantages of the console control:
1) The volume is small, almost no space;
2) Connection simplification.

(2) The main role of TP touch screen

Monitoring: In the form of data, curves, graphics, animation and other forms to reflect the internal bit state of the PLC, memory values, so as to intuitively reflect the process and direction of the industrial control system.
Control: You can change the internal bit state and memory value of the PLC by touch operation, so as to participate in process control.

(3) TP touch screen main functions

1) TRICONEX-3351 Display the control process in the form of animation, which can realize the working condition diagram and flow chart, the equipment from static to running, and the screen simulation animation display;
2) ON/OFF representation of discrete points; It can realize the color change of pipes, valves and indicators, the opening and closing of the electric switch knife, the switch of the stop plate, and the realization of multiple switch.
3) Parameter setting and data display; It can design the data table and make the simulation image of the operation panel.
4) Bar chart, (half) pie chart, container chart, trend chart and various instrument representations; The simulation image of the operation panel can be made, and the signal quantity value and liquid depth can be changed. Simulate the movement of the pointer or cursor of the watch head;
5) Various alarm actions: when there is an abnormal situation in the production process, automatic alarm and text display of the fault type, and the screen automatically switches to the process screen where the fault is located;
6) Report printing (non-screen hard copy), alarm information printing, printing time can be determined by the user; CCTV monitoring head (NTSC standard) can be connected to display real-time information on the scene.
7) Move the original switch, indicator light, etc. to the touch screen, you can save the input and output points of the original switch, indicator light, etc., on the PLC, thus reducing the scale of the PLC system.
8) Rights management: Only after the operator enters the correct login password when starting up, the touch screen can enter the running state

(4) TP touch screen in harsh conditions of use characteristics

1) Dustproof, seismic
2) Waterproof, anti-electromagnetic

TRICONEX-3351 Second, the application characteristics of programmable controller (PLC) in mixing floor control:

1) TRICONEX-3351 High reliability PLC in hardware and software to take a series of anti-interference measures, so that it can be directly installed in the industrial site and stable and reliable work, anti-magnetic, anti-seismic, dust.
2) Programming is simple and easy to master.
3) Strong adaptability and flexible application. The PLC system in the central control room of the mixing building can simultaneously control the auxiliary equipment of the mixing building, such as the pulse control system of the aggregate feeding belt, cement and fly ash in the mixing building.
4) The control system design, modification, debugging is convenient, less workload.
5) Powerful. PLC has switching input/output, analog input/output, a large number of internal intermediate relays, time relays, special relays, data registers, can be logic control, data processing, analog processing.