Transmitting data over the network using an OPC server

Abstract

The paper presents the way of transmitting the parameters of operation of a remote installation in a centralized control center of a company. The distance between the computers that collect the data and the data monitoring center is hundreds of kilometers. Data has to be transmitted through multiple physical environments and through multiple networks. This transmission channel must be very stable and secure against external threats to the company network. The monitored installation is comprised of 10 compressors each having a local control cabinet and transmitting data to monitoring computers in the control room. Centralized data in these computers are sent to the beneficiary. This transmission uses a tunneling solution provided by a company together with an OPC Server realized by using that function of the software in which the monitoring application is developed on the industrial computers in the control room of the respective installation. The results obtained in remote data transmission were very good. In conclusion, the configuration and software solutions adopted proved reliability and stability in operation.

Design, Application and Analysis of an OPC-based SCADA System

“…Nicola et al [16] developed an industrial LabVIEW application for SCADA system and applied OPC client-server communication for monitoring experimental indicators in controllers for a pneumatic system [17]. In [18], PLCs were used for controlling the air compressors' parameters for operation whereas SCADA application panels were employed to monitor these parameters, and the reliability of the OPC UA based SCADA system in multiple networks was proven. Hadi and Sallom [19] used OPC server and SCADA system on the same computer and accessed the parameters of the PLC that controlled the pneumatic equipment.…”

Desenvolvimento De Supervisório Visando a Integração Entre Variáveis Fieldbus E De Sistemas De Aquisição De Dados / Development of Supervision Aiming the Integration Between Fieldbus Variables and Data Acquisition Systems

“…Através do padrão OPC, sistemas de controle e instrumentos de fabricantes diferentes podem se comunicar sem entraves. Isso ocorre graças ao chamado OPC server que funciona como um conversor de protocolos, onde dados provenientes de CLPs, servidores físicos ou interfaces de usuário são convertidos para o padrão OPC e assim podem ser acessados pelos chamados OPC clients, instalados juntos aos softwares de controle (Niculescu et al, 2018).…”