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External SCADA Monitoring
A SCADA (supervisory control and data acquisition) system is comprised of software programs and hardware components that are used to gather data in real time and monitor processes and conditions from different locations. The SCADA system warns when a situation may potentially lead to accidents. SCADA is used in multiple industries e.g. oil and gas refining, water and waste control, power plants, transportation.
An oil company has implemented a network SCADA system for monitoring pipeline infrastructure, with VGA2Ethernet from Epiphan to capture, record and archive SCADA system displays. Operators and technicians located at the company’s headquarters control the SCADA system. All operations are performed through the HMI (Human-Machine Interface) in real time at the control panels.
The SCADA system supports daily operations and enables corporate functions by distributing real-time and historical information. Technicians are able to view the oil flow within the pipelines, control remotely compressors, pumps, regulation valves, and monitor the operation of pumping stations. The hardware gathers and feeds data into computers with SCADA software installed. This data is processed and presented in a timely manner.
For safety and training purposes, SCADA system control room displays need to be captured, recorded, and archived from the HMI. In order to not compromise security, no software or firmware modifications can be performed on the HMI machine. The solution has been found – a VGA2Ethernet frame grabber from Epiphan can acquire the VGA stream by intercepting the VGA signals coming from the SCADA HMI display without modification to SCADA software and hardware.
VGA2Ethernet is a network frame grabber so it doesn’t matter whether the operator viewing the captured SCADA display is located near the HMI machine or at another location. All captured display information is sent via the network. The VGA2Ethernet device captures high resolutions with lossless video quality. Since VGA2Ethernet acquires the VGA stream, digitizes and sends it over the LAN, all captured data related to remote controlling and monitoring of pipelines is also recorded and stored in a remote and secure location.
While the data from the HMI is being captured, operators and technicians are able to monitor the data in real time. If any hazardous situation is noticed, specialists can be contacted immediately ensuring efficient and problem-free SCADA control, while VGA2Ethernet captures, records and archives all events shown on the operator's display.
VGA2Ethernet proved to be an extremely reliable solution for industrial control and real-time SCADA monitoring. Since no modifications are made to the SCADA equipment or network infrastructure, it is also very simple to implement. The company has been able to integrate existing SCADA systems and data capturing hardware into a single corporate automation and information system. Starting from the acquisition and transmission of process values, then to oil specific data archiving, the SCADA with VGA2Ethernet frame grabbers function as a complete, scalable, and open system for the total management of pipeline infrastructure.
This case study is also available in the following languages:
Système de télésurveillance et d'acquisition de données externe
Внешний мониторинг с применением системы SCADA
Supervisión externa de sistemas SCADA
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