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原创 博途FB背景块优化的块访问灰色不能更改

添加链接描述1、离线;2、在FB块属性中将优化的块访问不选择,但是此时DB块还是不能取消,不能保持;3、在引用位置更新块调用;4、修改DB块的属性;...

2019-03-20 08:54:30 11952

转载 浅谈FB与FC块的区别及其实际的工程运用

网上转载简单的说FB是具有存储功能的,FC没有存储功能,这是一般的理解:FB需要背景数据块,而FC是没有的;参数的传递方式不同,FB的输入输出对应背景DB地址,而FC的输入输出没有实际地址对应的,只有程序调用时,才会和实际的地址产生关系。FB参数传递的是数据,FC参数传递的是数据的地址。FB功能块的处理方式是围绕着数据块处理数据,它的输入输出参数都是数据块里的数据,以及STAT的数据都是数据块里...

2019-03-04 18:03:04 12689 1

转载 设置S71500OPC服务器并测试

1、激活OPC UA服务器2、在防护与安全那边启用全局安全设置,然后设置证书设置允许的加密策略3、这边其实最好禁用自动接收证书4、设置用户名密码5、证书管理器6、下面是测试软件的设置图已经成功连上另外PLC是需要购买授权的,否则在激活OPC服务器PLC的维护指示灯会一直亮着登录成功在PLC端也会有诊断...

2019-02-12 16:30:32 5897 2

Programming_guideline_DOC

Application examples illustrate the solution of automation tasks through an interaction of several components in the form of text, graphics and/or software modules. The application examples are a free service by Siemens AG and/or a subsidiary of Siemens AG (“Siemens”). They are nonbinding and make no claim to completeness or functionality regarding configuration and equipment. The application examples merely offer help with typical tasks; they do not constitute customer-specific solutions. You yourself are responsible for the proper and safe operation of the products in accordance with applicable regulations and must also check the function of the respective application example and customize it for your system. Siemens grants you the non-exclusive, non-sublicensable and non-transferable right to have the application examples used by technically trained personnel. Any change to the application examples is your responsibility. Sharing the application examples with third parties or copying the application examples or excerpts thereof is permitted only in combination with your own products. The application examples are not required to undergo the customary tests and quality inspections of a chargeable product; they may have functional and performance defects as well as errors. It is your responsibility to use them in such a manner that any malfunctions that may occur do not result in property damage or injury to persons

2019-02-12

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