This article defines a very cheap alternative for acquisition of chromatograph signals and/or custody measurements in the process plants of oil and gas pipelines. The devices possess standards and diverse communication ports, demanding a modular architecture to acquire the values of the devices and provide the signals by Web/Intranet, using corporative network, dial-up PSTN line, leased line or cellular phone. This solution is applicable to sets of field devices that need to collect data in real time or in periods of time pre-configured and provide the information for visualization by a browser, load in a database or monitor the devices remotely by the supervision central. The architecture has the following characteristics: • Modularity; • Conversion of the out signal of the devices into standard Ethernet; • The Modbus-rtu is a network protocol; • Provide the signals by Web/Intranet; • Visualization of the signals in Browser; • Historical register of the data read in web Server devices; • Operational environment Windows 2000, Windows CE; • Configuration of the time of frequency of the equipments signals; • Allow integration with supervisory system; • Allow integration with corporative Data Base. To validate the architecture, we made tests in a Pilot Project, carried through in a PETROBRAS receiving station of Natural Gas, using the hardware and software components described in the article.
- International Petroleum Technology Institute
Pilot Project for Acquisition System of Chromatograph Signals and Custody Measurements Via Web
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Cerqueira de Santana, JP, & Fonseca, OB. "Pilot Project for Acquisition System of Chromatograph Signals and Custody Measurements Via Web." Proceedings of the 2004 International Pipeline Conference. 2004 International Pipeline Conference, Volumes 1, 2, and 3. Calgary, Alberta, Canada. October 4–8, 2004. pp. 2139-2146. ASME. https://doi.org/10.1115/IPC2004-0169
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