Patent ID: 9673572
Date: 2017-06-06
CPC Classifications: G05B,H01R

Claim:
1. Connection module for field devices in the explosion-protected area, having a housing with a plurality of controller-end terminals to connect to at least one input/output module, and having field-end terminals to connect to the field devices, wherein different resistors are present in the housing to provide intrinsically safe pairs of field-end terminals with different characteristic values, said different resistors being hardwired in the housing to different field-end terminals and/or controller-end terminals, characterised in that at least one series connection of resistors is present in the housing, a plurality of pick-ups of the series connection are connected to controller-end terminals or field-end terminals, a plurality of controller-end terminals are present to connect a plurality of current/voltage supplies, and a plurality of field-end terminals are present to form a plurality of intrinsically safe pairs of field-end terminals, a different resistance for the intrinsical effective in safety being effective in dependence of the respectively used terminals.