实现了dsPIC30f6012a通过SPC3与PLC通信，包含与西门子PLC通信用Gsd文件-PIC30f6012a communication with SPC3

一个西门子与plc通讯的实例，很好理解的一个东西，希望对你有帮助。-Two pilots have been suspended after a plane carrying 280 passengers plunged suddenly in the airspace over Turkey. Air regulators in India have set up an investigation into the “serious...suddenly in the airspace ove

西门子PLC编程软件授权，用于STEP7等软件的授权，可长期使用(SIEMENS PLC programming software licensing)

西门子PLC的PPI通讯协议上位机读写。PLC端无需编程直接读取。