Multi-input PLC (Programmable Logic Controller) module group for metering logic operation

The utility model belongs to the technical field of PLC modules, and particularly relates to a multi-input type PLC module group for metering logical operation, which comprises a PLC operation module assembly, an L-shaped mounting frame connected inside the PLC operation module assembly in a sliding manner, and a plurality of wire fixing assemblies corresponding to wiring terminals of the PLC operation module assembly, the wire fixing assembly is rotatably connected with the L-shaped mounting frame, and the top of the PLC operation module assembly is slidably connected with the L-shaped mounting frame through a convex sliding block; the PLC operation module assembly is matched with the limiting sliding groove through the inverted-T-shaped sliding block to be suspended, and the wire fixing assembly is installed at the bottom of the L-shaped installation frame, so that the wire fixing assembly can limit a line, the situation that the line is bent to damage a connector or contact is not solid when wires are gath