Level switching device applied to industrial communication

Abstract

The invention discloses a level switching device applied to industrial communication. The device comprises a power module and a level turning module, wherein the power module comprises a power input circuit and a booster circuit, the power input circuit is externally connected with an industrial power, and the output end of the power input circuit is connected with the booster circuit and the level turning module respectively; the booster circuit is also connected with the level turning module; the multi-path turning module comprises a level input wiring terminal, a level output wiring terminal and a multi-path level turning circuit; and the multi-path level turning circuit receives level signals via the level input wiring terminal, and outputs the signals via the level output wiring terminal after the level signals are turned. The invention provides the level switching device applied to industrial communication, which can achieve non-interference of multiple paths and improve level switching efficiency while the device is prone to install, small in size and low in power consumption cost.

Description

technical field [0001] The invention relates to a level conversion device applied to industrial communication. Background technique [0002] With the development of science and technology and the continuous improvement of the level of automation, PLCs and robots are more and more widely used in the industrial field; It also follows different standards; for example, PLC is divided into European standard and American standard. Some devices output low-level active, and some devices output high-level active, which brings trouble to the communication of different devices. [0003] In the process of industrial communication, it is often necessary to use level conversion devices to perform level conversion of IO ports for devices of different standards, so as to ensure normal communication and normal operation between devices, but at present, the practice of general electrical engineers Relays are used to achieve port level inversion; a group of bus communication will use a large ...

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Problems solved by technology

[0003] In the process of industrial communication, it is often necessary to use level conversion devices to perform level conversion of IO ports for devices of different standards, so as to ensure normal communication and normal operation between devices, but at present, the practice of general electrical engineers Relays are used to achieve port level inversion; a group of bus communication will use a large number of relay devices, which wastes the insufficient cabinet space; and the cost of relays is high, and the use of scattered relays will easily cause wiring difficulties and increase equipment failure rates. ; Moreover, the coil of the relay also has a heating phenomenon, which not only increases the overall power consumption, but also makes the coil easy to age, reducing the use of

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