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Title: Basic Devices Ahd Techniques For Supervisory Control Ahd Telemetry Systems
Author: Donald C. Mcbride
Source: 1978 International School of Hydrocarbon Measurement
Year Published: 1978
Abstract: Supervisory control and telemetry can be defined as any system that receives data and sends control commands, that have an effect on the data. over some distance. In practice the complete system provides the equipment necessary to send the control commands and receive the data. It may he very complex such as controlling and receiving data from a spacecraft, or it may be simple such as starting, stopping and monitoring a compressor a short distance away. In the past these systems were hard wired and as more control and telemetering functions were added could become quite cumbersome. With the advent of the mini-computer, programmable microprocessors and cathode ray tube displays the speed, accuracy quantity and flexibility of control and telemetering information has greatly increased. The latest systems use an online dedicated computer at the dispatch center and stand alone programmable microprocessors at the controlled stations. The scope of this paper will be to cover the subject as it pertains to this type of equipment for pipeline control and telemetering.

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