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Title: Communications Systems For Gas Measurement Data
Author: Darin Molone
Source: 2003 International School of Hydrocarbon Measurement
Year Published: 2003
Abstract: Pipeline companies have long since discovered the need for real-time pipeline system automation. Before the first SCADA (supervisory control and data acquisition) systems appeared, companies depended on employees to open and close valves and manually set controls for gas flow. These operational needs spawned the first SCADA systems. Companies often installedan RTU (remote terminal unit) for operational control of the pipeline and, if needed, a second RTU or chart recorder for custody measurement. This two-RTU philosophy forged two separate telemetry infrastructures. The first infrastructure communicated with the real-time operational RTUs, while the second collected the electronic flow measurement data.

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