摘 要:应用414-5H 冗余系统本身自带的PN 接口,在不增加CP443 的情况下实现与414-4H 系统之间的无扰冗余切换。软件使用SIMATIC Step7 5.5,在netpro 组态界面中的CPU 下添加S7-connection 链接,且使用西门子自带功能块SFD14(READ)和SFD15(WRITE)两个功能块,通过对其组态编程,实现两套冗余系统间数据的冗余交换。
关键词:414-5H;414-4H;SFD14;SFD15;S7-connection;冗余通讯
中图分类号:TP273 文献标识码:A 文章编号:2096-4706(2018)08-0170-03
Application of Redundant Communication Between Siemens 414-4H and 414-5H inIndustrial Control System
CHEN Tao,LI Bo
(Xi’an Aerospace Automation Co.,Ltd.,Electric Power Department,Xi’an 710000,China)
Abstract:The PN interface with 414-5H redundant system is used to achieve non disturbance redundancy switching between 414-4H system but without adding CP443. The software uses SIMATIC Step7 5.5 to add S7-connection links under CPU in the netpro configuration interface,and uses two functional blocks of SIEMENS’s functional block SFD14(READ)and SFD15(WRITE). By configuration programming,the data redundancy exchange between two sets of redundant systems is realized.
Keywords:414-5H;414-4H;SFD14;SFD15;S7-connection;redundant communication
参考文献:
[1] 西门子官方网站 [OL].[2018-06-03].https://www.siemens.com/cn/zh/home.html.
[2] 西门子400 系列产品手册 [OL].[2018-06-03].http://www.doc88.com/p-9095750398413.html.
[3] Siemens Step7 软件帮助.
作者简介:陈涛(1984.07-),男,陕西富平人,项目经理,学士学位,从事自动化行业,致力于自动化系统的智能信息化发展研究。