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  • The Ups and Downs of Taking the Bus: Part Two
    DP instrumentation and controls. Personnel experienced with the startup and commissioning of Profibus DP fieldbus systems were not available. Eventually, the problems were traced to wiring problems, such as improper connector and wire combinations. Profibus DP wiring requirements were not well
  • The Ups and Downs of Taking the Bus
    . In contrast, Profibus DP requires that each device be wired in sequence with either a Profibus DP sub-D connector or a Euro type 5-pin connector. The installation of busbased instrumentation and controls resulted in a clean, uncluttered design because fewer wires, interface devices and controls
  • Various Interfaces for Rotary Encoders
    via one cable. There is no need to connect each component with the master. The bus cable runs simply from one component to another. Specific protocols, such as Device Net, Can Bus, Profibus, Ethernet, etc. "organize" the communication between the bus components. Benefits: In addition to cost
  • The Ups and Downs of Taking the Bus
    at the lowest level of the process control hierarchy; it is used to connect measurement and control equipment to the process controller. Conventional instrumentation and controls use a pair of wires for each device to carry analog signals for communication. In contrast, fieldbus instrumentation
  • Tales from the Front: Applying Fieldbus at Genzyme, Part 1
    communications systems to connect sensors, actuators and control elements so that process control can be distributed across a Local Area Network, and processes controlled at the field level. Fieldbus standards took decades to take shape, and warring protocols are out there, including Foundation

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