Modeling software tests design and system logic: real-time emulation and simulation are the keys.
Tooling & Production › Vol. 63 Nbr. 6, September 1997
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Summary
Simulation and emulation models reflecting actual plant conditions enable testing of programmable logic controllers (PLC) software before installation to identify operational glitches before they occur. Emulation models need to accurately reflect the plant system to allow effective testing of the completed PLC software. Simulation, on the other hand, functions to verify design concepts and applicable configurations on a simplified basis to provide a preview on actual system performance. The model can afterwards be used to monitor and diagnose actual daily operations.
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Modeling software tests design and system logic: real-time emulation and simulation are the keys.
In the early 80s microcomputers and programmable logic controllers (PLCs) revolutionized industry. Industrial designers used these powerful tools to develop complex control programs, yet meaningful laboratory testing for control software did not exist. Back then neither the control engineers - nor the designers of the plant - could forecast how well the controls would perform, how long it would take to bring the plant into production, or...
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