|本期目录/Table of Contents|

[1]王晓斌.PROFIBUS PA总线在炼钢连铸控制系统中的应用与研究[J].工业仪表与自动化装置,2021,(04):122-125.[doi:10.19950/j.cnki.cn61-1121/th.2021.04.025]
　WANG Xiaobin.Profibus field bus in steel-making continuous casting control system application and research[J].Industrial Instrumentation & Automation,2021,(04):122-125.[doi:10.19950/j.cnki.cn61-1121/th.2021.04.025]
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PROFIBUS PA总线在炼钢连铸控制系统中的应用与研究

《工业仪表与自动化装置》[ISSN:1000-0682/CN:61-1121/TH]

卷:
期数:
2021年04期
页码:
122-125
栏目:
出版日期:
2021-08-15

文章信息/Info

Title:
Profibus field bus in steel-making continuous casting control system application and research
作者:
王晓斌
甘肃酒钢集团宏兴钢铁股份有限公司 检修工程部，甘肃 嘉峪关 735100
Author(s):
WANG Xiaobin
Maintenance Engineering Department of Hong Xing Iron & Steel Co. Ltd of JISCO, Gansu Jiayuguan 735100,China
关键词:
现场总线; 通讯中断; PROFIBUS-PA 总线; 环形冗余; 分配器
Keywords:
Fieldbus;  communication interrupt;  PROFIBUS-PA bus;  ring redundancy;  distributor
分类号:
TP273
DOI:
10.19950/j.cnki.cn61-1121/th.2021.04.025
文献标志码:
A
摘要:
为了研究不锈钢二号连铸机结晶器PROFIBUS现场总线控制系统DP/PA 耦合器故障和单台仪表故障引起整个控制系统通讯中断的原因，分别做了总线仪表短路实验、总线仪表开路实验、单台总线仪表绝缘测试实验、2#连铸机二冷水总线通讯对比实验，获得DP/PA 耦合器故障和单台仪表开路或短路均会引起PROFIBUS现场总线通讯中断的结果，得到DP/PA Link中的DP/PA 耦合器未采用冗余模式在系统加速老化阶段稳定性差和现场分配器无隔离功能或终端电阻配置错误都会引起通讯中断的结论，最终提出DP/PA Link中使用环形冗余的DP/PA 耦合器方案、现场选型带高级故障隔离功能分配器和正确配置终端电阻方案来提高系统运行稳定性。
Abstract:
To study the causes of the communication interruption of the whole control system caused by the mould PROFIBUS field bus control system DP/PA coupler fault and single instrument fault of stainless steel No.2 caster, the bus instrument short circuit experiment, bus instrument open circuit test, single bus instrument insulation test experiment ,2# caster two cold water bus communication contrast experiment were carried out respectively. The results of DP/PA coupler failure and single instrument open circuit or short circuit were obtained, and the DP/PA coupler in the DP/PA Link was not used to accelerate the old system by redundant mode The conclusion that the poor stability of the stage and the non isolation function of the field distributor or the wrong configuration of the terminal resistance will cause the communication interruption is put forward. Finally, the DP/PA coupler scheme using ring redundancy, the field selection with advanced fault isolation function distributor and the correct configuration terminal resistance scheme are put forward to improve the stability of the system.

参考文献/References:

[1]白泽,周春燕,许杰,等.Profibus-PA总线技术在三废处理系统中的应用[J].仪器仪表用户,2020,27(04):55-57.

[2]张军峰.某碳黑厂尾气处理锅炉区PA仪表干扰问题分析与处理[J].中国仪器仪表,2019(01):38-40+55.
[3]孙磊,王丽红.火电厂DCS现场总线电缆安装技术探究[J].山东工业技术,2016(18):155.
[4]董明亮.西门子PA总线仪表系统改造[J].水泥,2015(09):42-43.

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备注/Memo

备注/Memo:
收稿日期；2020-05-02
作者简介：
王晓斌（1988），男，甘肃天水人，本科，工程师，主要从事自动化仪表工作。
更新日期/Last Update: 1900-01-01