湛江电厂卸船机1994年投入使用,其电控系统全部由国外成套引进。该机采用了西门子S5-135UPLC及80、90年代应用较普遍的点对点通讯方式。随着工业现场总线技术的广泛应用,2001年对该机进行了技术改造,将PROFIBUS-DP工业现场总线应用到S5与人机界面的通讯中,实现了其状态信息的可视化,给操作者和电气维修人员带米了极大的方便。目前,电厂及港口许多老的装卸 Zhanjiang Power Plant ship unloader put into use in 1994, all of its electronic control system imported from abroad. The machine uses a Siemens S5-135UPLC and 80, 90’s more common point-to-point communication. With the widespread application of industrial field bus technology, in 2001 the technological transformation of the aircraft, the PROFIBUS-DP industrial field bus application to S5 and human-machine interface communication, to achieve the visualization of the state information to the operator and Electrical maintenance staff with a great convenience. At present, many old loading and unloading power plants and ports