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  • The What, Why & How of PLCs
    . A PLC consists of several PLC controlled system, the only investigate and implement new tools components: a CPU (Central change would be to the program and automation concepts will find Processing Unit) and I/O (Input/ stored in the memory. For example, their products being produced with a Output
  • PLCs Pack it in
    Programmable automation controllers enhance PLC's process-control capabilities. Programmable automation controllers, like these from National Instruments Corp., complement and enhance PLC operations by performing special tasks above and beyond an average PLC's capabilities, such as machine vision
  • FPGAs put PLCs in motion
    to get around the problem combines embedded control systems with PLC technologies. PLCs typically operate according to the IEC-61131-3 specification. This specification details guidelines for operating-system execution, data definitions, programming languages, and instruction sets. Unlike the PC world
  • Machine control beyond PLCs
    are actually implemented in an FPGA that is programmed with LabView. Unlike traditional PC or PLC processors, FPGAs are parallel processors. Additional loops do not affect the performance of other independent loops. In this example, the counter and the PID loop execute in parallel on the FPGA
  • Medical Device Link .
    , Ethernet can extend access to remote users through Web browsers and e-mail. But for an engineer tasked with automating a process, the challenge is to connect devices to other devices to integrate automatic functions. For example, a temperature controller may need to get its set point from a PLC
  • The good stuff may cost less
    vendor can outweigh modestly higher costs. And minimizing maintenance training brings additional savings with automation components that use software, such as HMIs, PLCs, and drives. However, there are cases when using best-of-class components make sense. For example, motion controllers are one
  • Monitoring and Control of Multiple EtherNet/IP Control Groups (.pdf)
    This white paper, written by N-TRON Corporation, explains network architecture for process control networks using EtherNet/IP. Allen-Bradley Logix PLCs, for example, communicate using this protocol. The white paper offers specific advice on configuring your network for better troubleshooting
  • AN114 Accuracy versus Resolution
    System error budgets should be developed and analyzed as an integral part of system designs. System engineers must determine the necessary levels of accuracy for system elements such as field sensors, actuators, signal conditioning modules (SCMs), and controlling units (PCs and PLCs). In addition

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