Operation Order Management in power system was first developed in late 1980s. In traditional Operation Order System, the operation logic is embedded into program using process description language. 电力系统倒闸操作票生成技术是从上个世纪80年代发展起来的一门技术。传统的操作票系统使用过程性描述语言，将操作逻辑混合在程序中。
After the functional and timing simulation, the FPGA program developed by hardware description language is put into practice by actually writing into the device through the JTAG download cable. Together with the remote data server, the preliminary test of the overall system is completed. 在对硬件描述语言编写的FPGA程序进行了功能及时序仿真后，通过JTAG下载电缆写入到设备上进行了实际运行，配合远程数据服务器，完成了整体系统的初步调试。
Also, in my paper a design of chaos-based SS sequence generator is done by using field programmable logic device FPGA as hardware circuit carrier, and a hardware circuit program is written in Verilog hardware description language. 另外，本文以现场可编程逻辑器件FPGA为硬件电路的载体设计了混沌扩频序列发生器。
CPLD have the advantages of high running speed and many I / O ports. Combining the inside program coded by very high speed integrated circuit hardware description language ( VHDL ), this method can quickly realize the synchronization of the merging unit. 该方法利用CPLD硬件执行速度快、I/O端口多的特点，结合甚高速集成电路硬件标准语言（VHDL）编写的内部运行软件，能够快速、准确地实现合并单元的同步。
Mainly concern to program the SAS Static configuration file by using substation configuration description language ( SCL ), HTTP / XML non real time communication mode and a simple communication system demo based on HTTP / XML. 主要包括用变电站配置描述语言编写SAS静态配置文件，HTTP/XML非实时数据通信方式，以及一个基于HTTP/XML的简单的通信演示系统。
