Abstract
Mechanical and electrical systems have developed into more complex interdependencies that, by their nature, require more sophisticated control systems. Industrial computer-based processors, such as programmable logic controllers (PLCs), have been developed to perform control functions and provide the operator with visual information to allow him to operate and control the plant. The PLCs first used by United Utilities had limited functionality and display capability. Nowadays the equipment used typically comprises several networked PLCs and colour human machine interfaces (HMIs) offering both graphical and tabular displays. Connection of the telemetry outstation to the plant control and monitoring system is commonly via the PLC network. The outstation accesses data tables within the PLC memory to avoid the need for costly telemetry I/O and its associated wiring.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
