PLC在旅客登机桥上的运用

The use of PLC in the passenger boarding bridge

登机桥是连接机场候机楼和各种飞机的活动通道,为确保靠接飞机的安全有效,登机桥一般采用PLC对其复杂的机电系统进行控制。本文介绍登机桥的组成结构及主要的电气控制原理。

The passenger boarding bridge（PBB）is the Active channel which connects Airport terminals and the plane at the airport,to ensure the connecting is safe and effective,the passenger boarding bridge general y uses PLC to control the complex electromechanical system.This airticle introduced the composition structures and main electric control principle of the passenger boarding bridge.