A Modular Programmable Logic Controller

Abstract

The invention belongs to the technical field of controllers, in particular to a modular programmable logic controller; comprising a base body; a side wall of the base body is provided with an installation cavity, and a slot frame is fixedly inserted into the installation cavity; A flow cavity is opened inside the slot frame, and a plurality of conductive thimbles are arranged inside the slot frame; the slot frames are mutually inserted and matched with conductive plugs, and the inside of the insertion frame is slidably inserted with a sealing slide plate through an elastic cavity bag; The sealing slide is slidably sleeved on a plurality of conductive thimbles; the side wall of the elastic cavity bag is communicated with the flow cavity through the catheter; the inner wall of the slot frame is fitted with an elastic raised film, and the elastic raised film is connected to the slot An expansion cavity is formed on the inner wall of the frame, and the expansion cavity is communicated with the flow cavity through a guide groove; the elastic convex film elastically expands and snaps into the engaging groove on the outer wall of the conductive plug; effectively prevents the controller from being installed in an environment with frequent vibrations , and then lead to the phenomenon that the conductive plug is detached from the socket frame.

Description

technical field [0001] The invention belongs to the technical field of controllers, in particular to a modular programmable logic controller. Background technique [0002] A programmable logic controller (PLC) is a specialized computer control system configured to execute software that continuously collects data about the state of input devices to control the state of output devices. A PLC typically includes three main components: a processor (which may include volatile memory), volatile memory including an application program, and one or more input / output ( I / O) port. [0003] The existing patent discloses a programmable logic controller, the patent application number is 2013800750675, and the programmable logic controller has a control unit. In the programmable logic controller, the control units are provided such that the side surfaces of the control units adjacent to each other are spaced from each other. In the programmable logic controller, as the control unit, the ...

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Problems solved by technology

[0004] Although the above-mentioned patent can easily obtain heat dissipation characteristics adapted to the setting environment; but when the controller is used in an environment with high vibration frequency, since the conductive jack on the controller and the external conductive wire are basically simple Plug-in connection, when the vibration frequency is too high, it is easy to cause the conductive plug to be separated from the conductive jack of the controller, which will affect the stable electrical connection effect of the controller

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