As S7-300/400 series PLC(Programmable Logic Controller) is node controller based on field bus net,it is difficult to develop the communication software on Lab Windows/CVI platform for its privacy of communication protocol.
英
美
- 西門(mén)子S7-300/400系列可編程邏輯控制器(PLC)是基于現場(chǎng)總線(xiàn)網(wǎng)絡(luò )的節點(diǎn)控制器,其通信協(xié)議不開(kāi)放增加了在Lab Windows/CVI等平臺上開(kāi)發(fā)通信驅動(dòng)軟件的難度。
