Extensible programmable logic controller

Abstract

The invention discloses an extensible programmable logic controller comprising a device body and a mounting base. An operation panel is fixedly installed at the inner surface of the front end of the device body; a state indication lamp is fixedly installed below the operation panel at the inner surface of the front end of the device body; and fastening screws are arranged at positions, approachingthe two sides, of the inner surface of the front end of the device body. A cooling trench is fixedly installed in the inner surface of one end of the device body; a connection port is fixedly installed below the cooling trench at the inner surface of one end of the device body; and a dustproof outer cover is fixedly installed on the outer surface of the upper end of the device body. According tothe extensible programmable logic controller, with the dustproof outer cover and the mounting base, the dustproof performance of the wiring latch is improved; and the controlled is installed or dismounted conveniently. The extensible programmable logic controller having the broad application prospects is suitable for different working conditions.

Description

technical field [0001] The invention relates to the field of control equipment, in particular to an expandable programmable logic controller. Background technique [0002] Programmable logic controller, referred to as PLC, is a digital electronic device with a microprocessor, a digital logic controller for automatic control, which can load control instructions into the memory for storage and execution at any time. The programmable controller is composed of internal CPU, instruction and data memory, input and output unit, power module, digital simulation and other units; the traditional programmable logic controller has certain disadvantages in use, and the dustproof performance Poor, in the process of use, the plug is easy to accumulate external dust, resulting in poor contact of the line and troublesome cleaning, and it is troublesome to install and fix, which is not convenient for the staff to operate. Bring some troubles, for this reason, we propose a kind of extensible ...

AI Technical Summary

Problems solved by technology

The programmable controller is composed of internal CPU, instruction and data memory, input and output unit, power module, digital simulation and other units; the traditional programmable logic controller has certain disadvantages in use, and the dustproof performance Poor, in the process of use, the plug is easy to accumulate external dust, resulting in poor contact of the line and troublesome cleaning, and it is troublesome to install and fix, which is not convenient for the staff to operate. brings some troubles, for this reason, we propose a scalable programmable logic controller

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