This type of system is representative of high security applications such as those required by correctional, justice, military, financial and utility facilities.

The use of components such as video and access control is obvious. But what about the PLC? There are important questions which arise. For example, why is an industrial grade computerized component generally seen in a manufacturing plant used in a security system? Why can’t the access control system perform the functions of the PLC? Are there access control systems that can perform the same functions of the PLC?