Abstract: Using LabVIEW environment a trial has been made to create a set of programmable virtual
instruments, which resemble the traditional PLC programmable functions and networks. The target of this work is to improve the programmability of PC-based control systems. Bringing the PLC to the industrial type computer it becomes possible to make use of the advantages of computer based DCSs. It will be possible to have unlimited number of programmable objects, and to run more than one program at the same time. By utilizing LabVIEW front panel it is an easy job to realize MMI as required, and by creating sub VIs the program becomes more compact and easier to debug.
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