【工控老马出品，必属精品，质量保证，亲测能用】 资源名：C#使用S7.Net，Sharp7连接读写PLC实例源码 资源类型：程序源代码 源码说明： 里面有S7.Net.dll以及使用说明英文版的，不用区网上下载了。实现C#连接PLC1200，并读写DB块数据。项目工程师完整的，可以直接学习使用。 更新：内部添加sharp7连接PLC增加读写bool变量，增加读PLC string类型，Wstring类型。 适合人群：新手及有一定经验的开发人员

【工控老马出品，必属精品，质量保证，亲测能用】 资源名：基于.NET（C#）的西门子PLC读写组件源码 资源类型：程序源代码 源码说明： 基于.NET（C#）的西门子PLC读写组件，直接引用S7.Net.dll文件即可使用，有演示代码。亲测可以用。 适合人群：新手及有一定经验的开发人员

【工控老马出品，必属精品，质量保证，亲测能用】 资源名：松下PLC通信示例源码 资源类型：程序源代码 源码说明： C#和西门子PLC通讯例子源码C# VB例子都有 注释详细 适合学习借鉴 适合人群：新手及有一定经验的开发人员

工业水处理设备自动消毒设备PLC控制程序

西门子plc调试软件，功能强大。具体https://www.mhj-tools.com/winplc-analyzer/ 直接看网页。 先安装软件，然后用文件夹中的破解覆盖。本人亲自破解，只此一家。分数高了点。 With WinPLC-Analyzer you can record signals of a S7-PLC (S7-300, S7-400, S7-1200) or S5-PLC (Simatic S5 series). You can record signals like input, output, flags, data, timer and counter. If you want, you can define a Trigger with S7-STL code. Then you can use this trigger to control the recording or to create a user message. When using S7-300, S7-400 you can also record cyclic exact. This means, that a short program will be transfered into the PLC. This ensures that you see every single edge in the recording. Without modifying the PLC progam you can record "scan exact". That means you can define the sampling rate in ms. With the special recording type "Offline recording", you can record the data within the PLC (without the PC connected). The next day you can transfer the results to your WinPLC-Analyzer project. Additional to the normal trend data, you can define "Snapshots". A "Snapshot" is a range of additional data, that will be stored, if a trigger event is raised. WinPLC-Analyzer also stores the data of the "i-stack" in case of a unexpected "PLC-Stop". Then you can examine the reasons for the PLC-Stop even after days. All software driver are included in the licence of WinPLC-Analyzer. You don't have to pay for every single driver separatly. To access a PLC over TCP/IP you don't need any other software or driver. Only if you want to use a SIEMENS Interface, the driver of it must be installed on the PC.

与西门子PLC通讯的Labview库，还不错。 以下是英文声明： Warning, the attached files are experimental VIs provided for educational purposes only. No warrantee is expressed or implied. You should test your code and completely understand the implications of writing to or reading from an operating PLC. PLCs are often used to control hazardous processes and/or equipment. Writing to or reading from a PLC in active control of equipment or process can result in the disruption of the PLC program or data areas, potentially causing economic loss, property damage, generation or release of hazardous substances and/or personal injury up to and including death. Test your software in a controlled environment and qualify it before using it on active equipment or processes. To my knowledge, Siemens has never released the details of the S7 protocol. Much of what is publicly available on S7 is based on observations of the protocol by others. There is an open source S7 data exchange package available at http://libnodave.sourceforge.net/ that documents many S7 features. These VIs were based upon the example posted at http://decibel.ni.com/content/docs/DOC-5467. They were modified by observing and mimicking a S7 data exchange between a protocol converter and a S7-300 series PLC. The observations were accomplished with the wireshark network protocol analyzer, available at http://www.wireshark.org/ and the Wireshark Plugin f黵 S7-Protokoll, available at http://sps-forum.de/showthread.php?p=202763. The Address Area parameter determines which PLC memory area is the target for the reads and writes. I have only tested reads and writes to the Data Block (DB) Area. Your application should read and write to separate read and write DBs dedicated for transfer only. By confining reads and writes to dedicated Data Blocks, the risk of unintended overwrites may be reduced. The data type: S7Com_Transport_Size.ctl is a ring variable that contains the parameter for the size or type of the transfer. I have only had success with the BYTE, INT and DINT transport sizes on an S7-300 series PLC. The other sizes remain in the ring variable for testing on other PLCs. I do not know if the bytes of a multiple-byte variable are read or written atomically. The example contains two top-level VIs: S7Com_Once.vi and S7Com_W+R_Loop.vi. S7Com_Once.vi performs one read or write per execution. It writes to the target PLC from an array of I32, it reads from the target PLC into an array of I32. The number of bytes written is proportional to the number of elements in the array to be written and the transport size parameter. S7Com_W+R_Loop.vi regularly writes to and reads from a pair of DBs in the target PLC. In order to use it, your Step7 PLC project should provide two Data Blocks, DB11 and DB12. See the screen capture image db11&12.PNG for their layout. After downloading the DBs to your PLC, monitor and change DB VAlues with a VAT. As can be seen in the VI, the transfer size is DWORD. Included are example VIs (S7Com_to_PLC(SubVI).vi and S7Com_from_PLC(SubVI).vi) to map variables between Labview and the S7 PLC DBs. In the example, they use the same cluster type definition (S7Com_PLC_Data.ctl) but that is not a requirement. When you change the mappings, you must calculate the size of the variables to be read from the PLC in order to use the correct Read Length parameter. The read length parameter is in transport size units. The write length parameter is taken from the size of the write data array, so if the write data array is larger than you anticipate, data may be overwritten. The hex byte and hex byte array type definitions were created to format the internal data structures to show hex values so that they could be easily compared to the wireshark packet dumps. These VIs have been minimally tested on a NI 9072 cRIO. This is not finished. Needed are better error checking, cleaner S7 Response decoding, and stress testing with malformed data.

电子-西门子PLC上所使用的软件PID程序.rar,单片机/嵌入式STM32-F3/F4/F7/H7

【亲测实用】上位机语音识别控制西门子PLC程序完整源码 文件类型：程序源代码 主要功能： 上位机语音识别控制PLC源码（含西门子PLC程序，详细注释） 适合人群：新手及有一定经验的开发人员

西门子PLC课程设计 自动门控制装置 仅供参考

西门子1200PLC字符串分割函数，采用SCL语言写，通过“外部源文件”添加到项目中，然后对该文件右键--选择“由源生成块”即生成该函数。