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                     FIGURE 3.65  Minicell controller.


                          3.18.5  Fiber-Optic Sensory Links for Minicell Controllers
                          A minicell controller is typically used to coordinate and manage the
                          operation of a manufacturing cell, consisting of a group of automated
                          programmable machine controls (programmable controllers, robots,
                          machine tools, etc.) designed to work together and perform a complete
                          manufacturing or process-related task. A key benefit of a minicell con-
                          troller is its ability to adjust for changing products and conditions. The
                          minicell controller is instructed to change data or complete programs
                          within the automation work area. A minicell controller is designed to
                          perform a wide variety of functions such as executing programs and
                          data, uploading/downloading from programmable controllers, moni-
                          toring, data analysis, tracking trends, generating color graphics, and
                          communicating in the demanding plant floor environment. Successful
                          minicell controllers use fiber-optic links that can interface with a vari-
                          ety of peripheral devices. A minicell controller can be used in a variety
                          of configurations, depending on the optical-fiber lengths, to provide
                          substantial system design and functional flexibility (Fig. 3.65).


                     3.19  Versatility of Fiber Optics in Industrial Applications
                          A constant concern in communication is the ever-increasing amount of
                          information that must be sent with greater efficiency over a medium
                          requiring less space and less susceptibility to outside interferences.
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