In-system reprogrammable (ISR) units provide dynamic online automation and control

In modern control systems, there is a tremendous demand and requirement to implement the necessary control dynamically and also remotely. In addition, with the availability of the programmable devices such as complex programmable logic devices (CPLD) and field programmable gate arrays, it is now possible to design the systems with these type of devices and reprogram them online from remote locations. In this paper, the authors discuss the nature of the dynamic control methodology that is being followed and the model systems which are being implemented at the Florida International University Electrical and Computer Engineering Research Laboratories. The remote and dynamic control methodologies are implemented using the VHDL coding and remotely programming the CPLDs at the remote locations, using the VHDL code from host and network based data transfers.