BAILEY NETWORK 90

process control instrumentation; namely, operator interface units; namely, digital control stations, configuration and tuning modules, operator consoles; process control units; namely, controller modules, logic master modules, digital slave modules, analog slave modules, analog master modules, analog output modules, controller interface modules; termination units for computer interface and process input and output wiring; and power systems, which provide both modulating and sequential control, data acquisition, operator interface, and computer interface for industrial and utility applications