摘要
Abstract
According to two 600t gantry cranes in Shenhua Ningxia Coal Industry Group,the paper introduces the cranes in parallel operation based on Ethernet bus communication in the S7-400H PLC+PROFIBUS-DP bus grid +ABB frequency conversion electric control scheme,and describes typical application of S7-400H,PROFIBUS-DP site bus,and Ethernet bus in cranes.关键词
门式起重机/S7-400H/PROFIBUS-DP/以太网/并车Key words
gantry crane/S7-400H/PROFIBUS-DP/Ethernet/parallel operation分类
机械制造
