Design and Performance Simulation of Computer Control System for Automatic Monitoring of Upper Computer Communication Operation State

The upper computer communication operation state automatic monitoring system is mainly used to remotely monitor the equipment, obtain various parameter indexes in the operation process of remote equipment, realize remote monitoring and fault diagnosis, and improve the management efficiency of decentralized equipment. This paper completes the design of communication, data storage, query, and other subsystems of upper and lower computers. The lower computer establishes a data channel with the OPC server through the MPI protocol and uploads the collected data to the OPC server in real time. The upper computer reads the data through the OPC server and displays the changes of monitored parameters in real time through the monitoring interface, so as to give an alarm under abnormal conditions. In addition, since the default database of Kingview is access, considering that the Microsoft Access database can store up to 2G of content, in order to upgrade and expand the subsequent system, SQL Server database is selected for data query, backup, and saving. The parameter setting method of communication control system is analyzed, the simulation model of industrial boiler control system is established by using Matlab/Simulink, and the interface between host computer software (IBCCS-e) and the model is provided. This paper analyzes the results of communication parameter adjustment. The simulation results show that the industrial boiler computer control system (IBCCS) has stable performance, low cost, convenient operation, and good maintainability. After further improvement, it has certain application value in the operation transformation of new small- and medium-sized boilers and original boilers.

MỘT KIẾN TRÚC SCADA LINH HOẠT CHO TỰ ĐỘNG HÓA QUÁ TRÌNH KIỂM TRA XE MÁY ĐIỆN TRÊN CƠ SỞ OPC SERVER VÀ PLC

Bài báo trình bày giải pháp thiết kế và thực thi một hệ SCADA có kiến trúc 4 lớp bao gồm máy tính công nghiệp IPC, bộ điều khiển logic khả trình PLC, các cơ cấu chấp hành và các cảm biến. Phần mềm SCADA được thiết kế với WinCC Flexible; các đối tượng được nhúng và liên kết nhờ công cụ OPC Server KEPware Ex. Giải pháp được áp dụng cho quá trình kiểm tra đầu cuối xe máy điện xuất xưởng ở một số đơn vị nhằm đánh giá xe có đạt tiêu chuẩn lưu hành hay không.

Industry Communication Based on TCP/IP Protocol

The design of control systems needs to ensure communication between multiple PLCs or external IoT devices. Furthermore, there are several ways of communication between them. This article dealt with the PLC communication based on TCP/IP protocol, and compared several communication options between two PLCs of the S7-300 and S7-1200 series connected using Profinet with a solution built in C# connected to the PLC via an OPC server. We used MODBUS TCP, TCON, and PUT/GET program blocks for comparison. We transmitted a digital Boolean data type and an analogue value of the integer data type via Profinet to read data from the S7-300 PLC and send data to the S7-1200. We compared the programming instructions standardly used as a client/server PLC programming with a Windows Forms application, and evaluated the advantages and disadvantages of this solution even when using external IoT devices. The solution was applied and successfully tested for communication between PLC S7-1200 and Nvidia Jetson Nano. We wrote program instructions for PLC in Siemens Tia Portal V15.

Improved control and monitor two different PLC using LabVIEW and NI-OPC server

<span>This paper proposes an improved control and monitors between two different PLCs, the Mitsubishi, and Omron. The main advantage is interoperability and communication between both PLC. The use of NI OPC server as the software interface reached interoperability and communication. There were developed two field applications to test interoperability. Laboratory virtual instrument engineering workbench (LabVIEW) uses as the software application for creating the user interface to control and monitor. This improvement show OPC server technology solves data compatibility issue between different driver controller’s and reducing development cost. Regardless of whether there are more than two different PLCs, it's enough to use the NI OPC server. So the benefit of the NI OPC server is not limited to two types of PLC used right now but can also use the other manufacturers. Besides, the improvement of the previous study is the use of the LabVIEW makes data from the OPC server displayed more realistic. The use of LabVIEW allows additional monitoring functions, one of which is LabVIEW vision. Data utilization becomes more flexible, and so it can use for more complex purposes. It is envisaged that this is very useful for Integrator engineer to implement this method in industrial automation</span>

DEVELOPMENT OF THE OPC-SERVER OF THE EMULATOR OF THE TECHNOLOGICAL PROCESS FOR SCADA AND PI SYSTEM

The concept of developing an OPC-server for integrating the process emulator with SCADA and PI-System.

DESIGN OF DECY-13 CYCLOTRON DAQ SYSTEM

PSTA BATAN (Center of Science and Accelerator Technology) has been developed the 13 MeV cyclotron named DECY-13 for producing radioisotope. That cyclotron has five subsystems and hasn’t established by communication standard protocol yet. In order to make cyclotron communicate effectively, this paper presented the design of data acquisition with OPC (OLE for Process Control) based standard protocol and it has established in DECY-13’s Instrumentation and Control System by case study method. We used Modbus TCP/IP architecture to make all of HMI from five subsystems building communication with each other to Server Computer (OPC Server). OPC Server and OPC Client has configured by NI OPC Server and NI LabVIEW. Data acquisition has monitored by LabVIEW. Configuration of the system for 13 MeV cyclotron and performance test result showed in RMSE value from Reflected Drive Amp Power is 13,94 %, Magnetic Field is 11,2 % ; Forward Final Amp Power is 5,24 % ; Forward Drive Amp Power is 1,98 % ; MPS current is 1,87 % ; Beam Current and A2 Sensor are 1,85 % ; B2 Sensor is 1,77 % ; Bias Current is 1,71%. Based on monitoring and test result, the design of DAQ system has succeeded and established the communication from several different data types from subsystems with OPC protocol standard

Development of a highly automated mobile rig for the Australian CSG market

In Q2 2020, a fully automated rig will enter the coal seam gas fields of Queensland, to work for a major operator. It is expected to be 20–30% faster than current operations. This document describes the upfront iterative design process with local potential users. Following discussions with various contractors and operators it became evident that there was a gap to bridge between operator and contractor targets and in what current operations have to offer. Both strive for the highest safety levels and operational efficiency, reducing the overall time per well, completed by minimising environmental impact. The above fits in the overall industry trend of transformation from mechanised rigs towards fully automated hands-free operated rigs. It was with these ingredients that the basis of a new iterative design process was formed, in which input from the operator field lieutenants, contractor rig crews and the supporting office was translated into a technical design. The target was set to reduce 20–30% of time per well. Key elements were the choice for road legal trailerised loads with no loose items, which resulted in rig moves of 4–6 h. Fully automated sequenced pipe tripping and casing running contributed to big improvements in efficiency and safety level (no people on the floor during standard operations). Performance can be real-time evaluated and optimised by collecting all rig and downhole data on the OPC server. The server also controls the mud system, downhole data and other important systems. This enables through-life time optimisation.

Kajian Penggunaan Opc Server Untuk Pembuatan Penampil Daya Reaktor

Mode operasi reaktor RSG-GAS meliputi daya rendah (kW) hingga daya tinggi (MW). Saat ini penampil daya hanya menampilkan daya dalam orde MW. Untuk itu perlu dibuat penampil daya yang mampu menampilkan daya dalam range yang lebih lebar untuk melengkapi penampil daya yang ada. Perangkat penampil digital daya reaktor dibangun dengan perangkat OPC server, labview dan memanfaatkan kanal daya JKT04 yang digunakan sebagai pedoman penentuan besar daya reaktor. Dari hasil pengujian, program penampil digital daya reaktor berhasil menampilkan daya reaktor dari orde kW sampai dengan MW dan perhitungan faktor konversi arus JKT04 (ampere) ke skala daya (watt) dapat dilakukan secara akurat dan otomatis. Semua hasil perhitungan program dapat disimpan ke dalam file dalam format excel sebagai basis data. Perangkat ini dapat diterapkan di RSG-GAS dengan harapan dapat digunakan sebagai penampil daya untuk operasi daya rendah hingga daya tinggi dan sebagai sarana untuk menunjang penelitian tentang daya kalorimetri reaktor.Kata Kunci :Penampil daya, Faktor Konversi, Kanal daya, OPC server