PDP SCADA系统与VAX PCS—32系统互联

THE INTERCONNECTION OF THE PDP SCADA SYSTEM AND THE VAX PCS—32 SYSTEM

本文描述在DECNET网络环境下采用非透明任务间通信机制实现PDP—11/24 SCA—DA系统与VAX 6210 PCS—32系统互联,完成VAX PCS—32系统与PDP SCADA系统间的双向数据通信,解决了国产CDT规约RTU接入引进PCS—32系统的问题。为国内研制的调度自动化系统与国外引进系统联网使现有运行系统扩充改造探索了一条可靠的道路。

This paper describes interconnection of the VAX 6210 PCS-32 system with the PDP-11/24 SCADA system by using Non-transparent Task-to-Task communication mechanism under the DECNET network environment,the CDT protocol RTU's data collected by the PDP-11/24 SCADA system can be sent to the VAX 6210 PCS-32 system,and the polling protocol RTU's data collected by the PCS-32 system also can be sent to the PDP-11/24 SCADA system.In this way,the problem of joining domestic made CDT protocol RTU to the PCS-32 system is solved,and a practicable approach for integrating the existing SCADA system with newly imported EMS system is developed.