成品油管道SCADA系统的跨平台时间同步技术

在具有实时性要求的管道SCADA系统内,由于不同平台的设备晶振时钟不一致、网络传输延迟等因素,导致时间的准确性难以保证,严重影响了生产数据传输的及时性和有效性.介绍一种基于GPS时钟源、NTP协议和CIP协议构建实现跨平台的SCADA系统的主动对时体系的方法,保证了系统内网络设备、服务器、客户端以及现场的PLC的时间的准确性与一致性,实践证明,该方法有效可行.

Cross-Platform Time Synchronization Technology in SCADA System of Product Oil Pipeline

Real time character is the common request of a pipeline SCADA system, as the own BIOS clock of the Cross-platform devices are not same and the transit delay of the network, time accuracy cannot be guaranteed which influent the product data transit in time and valid. This paper introduces a method of using the GPS clock source, NTP protocols and CIP protocols to achieve the initiative synchronizing system for Cross-platform SCADA system, which can ensure time accuracy and consistency with all the network devices, servers, clients and programmable logic controllers. Practice proved this method is valid.