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The paper introduces a design method that the S7-200 PLC uses as a modbus RTU master station. According to the free-port communication protocol of Port 0, the part functions of modbus RTU master station are realized by program. The details of the program will be discussed and explained carefully in the paper.
Calcium carbide industry is a high-energy and high-polluting industry. The available effective heat of high temperature flue gas waste heat of two 16500KVA semi-closed calcium carbide furnaces are calculated in this paper. It is technically feasible that use the waste heat of high temperature flue gas of semi-closed calcium carbide furnace to generate electricity. The scale of Waste heat power generation...
Talent is related to the fundamental problems of three-zone construction and development in Weifang City. This article selects the AHP method, and constructs dynamic capability evaluation index system of three-zone human resource planning, which helps diagnose their human resource planning dynamic capabilities, and finds out the key factors affecting the ability, thus science formulation and implementation...
Different manufactures have various user interfaces (UIs) for the similar devices, which bring great inconvenience to the user. A method is presented in this paper to make interfaces that can be customized by users. It employs the approach of separating widgets of UIs from functions and binding functions to device drivers dynamically. The customized interfaces can be applied to all similar devices...
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