Assembled plug for input-output module of PLC system

摘要

The present invention relates to a plug assembly of an input/output module for a PLC system, which can obtain stabilization in assembling the input/output module in an individual PLC assembly and consequently, obtain stabilization of connection between PLCs; and to a PLC case assembly using the same. A plug assembly of an input/output module for a PLC system, which is combined to a connector with multiple holes in the input/output module for the PLC system, comprises the following: a bare plug in which support blocks supporting a plurality of arranged terminals by surrounding lateral sides of the terminals are arranged at constant intervals in a longitudinal direction of the terminals; and a plug case through which the bare plug passes in a longitudinal direction thereof and which has a pipe shape surrounding the lateral sides of the connector and a catching portion protruding from an inner wall to be positioned between the support blocks, and a sliding movement of which is restricted as the support block at any one side is hung on the catching portion and an inner side of the plug case protruding in the opposite direction to the support block hung on the catching portion forms a guide portion guided by an outer wall of the connector.