At left is a Fisher-Rosemount RS3 Computer Control System being interfaced with a variety of sensors and transmitters. Instruments being added to the control system include RTD temperature transmitters, thermocouple sensors, thermistor transmitters, pressure measurement, pressure control valves, flow measurement and control valves, weight measurement, weight control by pumps, RPM monitoring and control, and diaphragm and ball valves used in automatic sterilization and in operating modes.
All information acquired by the Fisher-Rosemount RS3 is transmitted to a "Host Computer" capable of intervening with "change of strategy" command decisions, which are then transmitted back using a RS422 Serial interface (26, 136, 196, 199, 226, 230, 255).
This is a Local Area Network (LAN) Diagram of Workstations, Server, RS3, Process Mass Spectrometer, and Printer used in a Pilot/Production Plant environment. Large control systems like the Fisher-Rosemount RS3 have been linked using high speed serial lines to several PC Workstations running Windows 2000, Windows XP, Windows Vista, or Mac OS X operating systems, allowing data and command interchange across a LAN.
The Process Mass Spectrometer "Questor IV" from ABB Extrel is able to communicate using SMARTlink, (a remote network product) with Service Engineers and Process Chemists, allowing them to take full control from any of ABB Extrel's Service Centers. This allows the instrument to be tuned by professionals, "off site", and help solve difficult analysis problems (26, 87, 136, 195, 199, 226).
Craig Bremmon
CEBTech Services
503 11 th Ave. SE, Suite 5
Aberdeen, SD 57401
bremm001@nvc.net Phone: 605 226-3595
Fax: 605 225-0467