摘要
针对工业生产饱和蒸汽链条锅炉生产工艺和控制系统的实际要求,介绍了基于PLC的DCS控制系统和网络选择。通过对控制网络和通讯方式的研究和比较,以及考虑将来在工业生产中的推广前景,着重阐述了德国Siemens公司的Profibus现场总线技术和IndustrialEthernet工业以太网技术在现场的实际应用情况,证明了两种工业网络技术的成熟性、可靠性和先进性,特别适合于在具有大通讯量和较高的通讯速率要求的工业现场的使用,而且可以结合现场控制设备的实际分布采用集中或分布式灵活的布置方式,最大程度满足工艺生产和用户需求。事实证明,以PLC组成DCS技术为核心,结合工业控制网络和组态软件,采用Profibus现场总线技术和工业以太网通讯技术,能完全满足现代企业生产和管理的需要。
With the production craftwork of the industrial production saturation stream-chain boiler and the actual request of the control system, DCS control systems based on PLC and network choices are introduced. Through the study and comparison of the control network and the communication mode, and with the consideration of the spread prospect in industrial production in future, profibus technology of German SIMENS company and the actual applied situation of industrial Ethernet technology are presented, which demonstrates maturity,reliability and advance of the two industrial network technolog ies. Especially they are fit for industrial spot which owes a lot of communication and high communication rate. Also through combining spot control facility's actual distribution, they can apply the configuration modes with concentration or distribution, satisfy the craftwork production and user demand at maximum level. It is shown that, with the core of DCS technology composed of PLC, and with the industry control network and configuration software, adopting profibus technology and industrial Ethernet communication technology can fulfil modern corporation production and management request fully.
出处
《控制工程》
CSCD
2004年第3期254-256,共3页
Control Engineering of China
