一种节省PLC输出点的方法在船舶电站模拟器中的应用  

The Application of a Method to Save Output Points of PLC in Ship Power Station Simulator

作　　者：于风卫[1] 何文雪[2] 吴庚申[1] 何法明[1] 

机构地区：[1]青岛远洋船员学院,山东青岛266071 [2]青岛大学,山东青岛266071

出　　处：《船电技术》2008年第5期285-287,共3页Marine Electric & Electronic Engineering

摘　　要：在开发的基于PLC的船舶电站模拟器中,用32个LED来模拟主配电板并车屏上的同步表。由于LED数目多,占用PLC输出点数多,成本高。为了降低成本,设计了一种译码输出电路,在PLC输出端与同步表LED之间增加少量的硬件电子电路,配合软件编程,仅用PLC的6个输出点就可控制同步表的32个LED。32 LEDs are used to simulate the synchroscope on synchro panel of main switchboard in ship power station simulator which is developed based on PLC. It is high cost because of occupying too many output points by LED. In order to reduce the cost, a decoding output circuit is designed. We can use only 6 output points of PLC to control 32 LED of synchroscope by increasing a few electronic circuits between outputs of PLC and LED and combined with programming.

关 键 词：船舶电站模拟器 同步表 译码器 PLC输出省点 

分 类 号：TP15[自动化与计算机技术—控制理论与控制工程] U665.11[自动化与计算机技术—控制科学与工程]