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Based on Modbus EPS emergency power supply supervisory system’s research
Tuesday, April 7th, 2009 at 09:08 | No commentsCategories: Power SupplyShort Content: 1 introduction Along with the environmental protection and the fire request's enhancement, the diesel electric engine loses the superiority gradually, but as a result of the contravariant technology's mature development, new does not have the environmental damage, redundant reliable, power large-scale emergency power supply EPS (Emergency Power Supply) to become gradually replaces the diesel dynamo "the green power source", at present already obtained the big area promotion in the construction domain. At the same time, along with the microprocessor, ... -
Modbus the RTU communication protocol realizes - en.51rd.net on MCF51QE128
Thursday, December 11th, 2008 at 03:42 | No commentsCategories: Communication NetworksShort Content: Introduction The industrial control moved toward the centralized monitor, the collection and distribution control from the single plane control, now entered the network intensive manufacture time. Industry controller Lian Wang has also provided for the network management conveniently. Modbus is in the industry controller's network protocol one kind. The Modbus agreement is applies on the electronic controller's one kind of communication protocol. Through this agreement, the controller, the controller (e.g. ethernet) and between other equipment may correspond by way ... -
Under Modbus agreement monolithic integrated circuit and eView touchscreen means of communication
Sunday, December 7th, 2008 at 08:35 | No commentsCategories: Communication NetworksShort Content: Because the abstract Modbus agreement it has openness, the transparency, the cost lowly, easy to develop and so on characteristics, has become now the industrial field communication protocol first choice. This article introduced one kind based on Modbus the communication protocol eView touchscreen and the commonly used 51 monolithic integrated circuit's means of communication. This method realizes the Modbus correspondence through the C51 programming, has the versatility on 51 series monolithic integrated circuits, has certainly certainly profits from the function.Key ... -
Realizes between the monolithic integrated circuit and PLC communication - 51RD based on the Modbus agreement the Chinese electronic net
Sunday, November 16th, 2008 at 23:52 | No commentsCategories: Communication NetworksShort Content: Key word: Programmable controller Modbus Communication protocol 1 introduction HMI (man-machine contact surface) is small by its volume, high performance, strong real-time and so on characteristics, more and more applications in industrial automation system and equipment. It has the letter, the Chinese character, the graph and the picture and so on different demonstration, the contact surface simple friendly. Has the long life thin film button keyboard, the simplicity of operator. It uses generally has the integration rate to be high, speed quick, high ...
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