Java的s7connector连接库，用于连接西门子PLC，支持西门子S7系列及更低版本的PLC(The s7connector connection Library of Java is used to connect Siemens PLC, and supports Siemens S7 Series and lower PLC)

西门子下位机PLC连接示例程序，S7connector。使用java语言实现(PLC s7connect demo project, with language Java.)