System components: Analog input module SFC445

This module is able to measure temperature from a large variety of thermocouples (TC) and RTD's as well as millivolts and resistance with high accuracy. Temperature measurements are linearized internally. In the case of thermocouples a cold junction compensation is already built-in close to the terminals of the module In order to feed conventional analog, discrete and pulse signals into the control system and to provide facilities for controlling valves, starters, pumps, switches etc., a number of local I/O modules can be added to the Field Controller rack assembly. The modules are addressed by means of a channel number in a special Field Controller hardware transducer block and, depending upon type and function, connected to the fielbus system by means of multiple or standard input and output blocks. Depending upon I/O type, an Analog or Discrete Multiple function block provides a connection for up to 16 input or output signals.

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