The supply The EM12 supply modules for the power input of the REX system are available in different versions providing genuine flexibility with regard to costs and functionalities Besides the conventional EM12 T01 BASE supply modules with integral group fault signalling by means of a relay contact there are also the EM12D TIO for IO link and the EM12D TMB for Modbus RTU ControlPlex COM supply modules They provide a great amount of diagnostic information via the superordinate IO link or Modbus RTU master as a basis for targeted remote maintenance In addition there are supply modules for further potential supplies In this process the EM12 T00 100 supply module connects all DC 24 V points of supply The EM12 T00 200 supply module serves as DC 24 V disconnect terminal for the supply of e g DC 24 V voltages buffered by the DC intermediate circuit or as group supply point for safety related trips by means of an upstream safety switchgear The EM12 T supply modules for GND take up the 0 V potential and complete the supply THE REX SYSTEM The supply modules Potential free auxiliary contact COM BASE 4

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