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西门子PLC的通信协议主要是PPI、MPI、Profibus、CP243CP343CP443 网络协议,prodave是早期完成的程序接口,除了网络协议外其它的主要协议都支持-Siemens PLC' s communication protocol is mainly PPI, MPI, Profibus, CP243CP343CP443 network protocols, prodave early complete programming interface, in additio
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串口与OPC通信,将信息通过通过串口小助手实现与OPC的通信-Serial communication with the OPC, through the serial port information through the helper' s communication with the OPC
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为了实现对船舶电站的实
时监控,对PLC编写程序,并在LabVIEW作为监控界面的情况,PLC与工控
机之间采用OPC技术实现通讯,GPC与工控机之间采用Modbus串口协议实现
通讯。最后在实现通讯的的基础上,对本系统进行了试验调试,并开发监控界
面。-In order to achieve real-time monitoring of ship power plant, the PLC programming and control interface as in the
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工业上广泛应用的数据OPC通讯协议,该文章可用于想二次开发OPC程序,跟JX300X系统进行通讯的用户提供参考-Data OPC communication protocol widely used in the industrial, the article can be used to secondary development of the OPC program to communicate with the user system with JX300X provide referen
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手把手教你 vb 编写 OPc 协议通讯-Taught you how to write OPc protocol communication vb
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工控行业的OPC通信协议的源码,广泛用于能源,电力等行业,opc通信的协议使用比较多。电力DCS等系统必备的通信协议源码-OPC communication protocol source code of the industrial sector, and is widely used in the energy, power and other industries, opc communication protocol to use more.
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X2Modbus相当于一座通信桥梁,将其它非标准通信协议网关转化成Modbus标准通讯协议和OPC DA规范,使得支持Modbus协议的上位机软件-X2Modbus equivalent to a communication bridge to other non-standard communication protocol gateway into standard Modbus protocol and OPC DA specification supports Modbus protoc
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优点:1,PPI协议通讯速度快,比OPC ,PCAccess,Modbus 快4-5倍左右。(就这一条优点就足了,呵呵)
2,PLC端无需编写任何通讯程序。
3,可以直接对PLC进行,RUN STOP等操作。
4,本程序全部采用LABVIEW底层程序框图,没用调用任何的DLL ,API等。这点对你学习还是修改程序功能都很有帮助,方便。-Advantages: 1, PPI protocol communications faster than OPC, PCA
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OPC通讯协议案例代码
含組属性修改和写入
作者:潇洒草Email:zhkai868@163.comQQ:44649029-OPC communication protocol Case Code
Mgroup properties modify and write-
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用VB实现的Client,实现S7—PLC和计算机通信,遵照OPC协议实现-Using VB to achieve the Client, the realization of S7- PLC and computer communication, according to the OPC protocol implementation
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用VB实现的Client,实现S7—PLC和计算机通信,遵照OPC协议实现-Using VB to achieve the Client, the realization of S7- PLC and computer communication, according to the OPC protocol implementation
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用VB实现的Client,实现S7—PLC和计算机通信,遵照OPC协议实现-Using VB to achieve the Client, the realization of S7- PLC and computer communication, according to the OPC protocol implementation
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用VB实现的Client,实现S7—PLC和计算机通信,遵照OPC协议实现(Using VB to achieve the Client, the realization of S7 - PLC and computer communication, according to the OPC protocol implementation)
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用VB实现的Client,实现S7—PLC和计算机通信,遵照OPC协议实现(Using VB to achieve the Client, the realization of S7 - PLC and computer communication, according to the OPC protocol implementation)
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