描述
DCS网络的结构形式大致是三种,分别是总线形、环形和星形。星形结构通常只用于小系统。通讯协议有令牌广播式,问询式和存储转发式。问询式协议的网络要有交通指挥器。所有人机界面要向控制器请求数据时,必需通过交通指挥器,由交通指挥器来向控制器请求数据。控制器才能发送信息给人机界面。
INDRAMAT NAM 1.3-08 LINE FORMER
BUSSMANN LPJ-80SP LOW PEAK FUSES, LOT OF 154, NNB
BUSSMANN LPJ-60SP LOW PEAK FUSES, LOT OF 443, NNB
ALLEN BRADLEY 1756-A13 CONTROL LOGIX CHASSIS W/ PWRSUP*
GRACO 218-599 SENATOR AIR POWERED PUMP
GRACO LSA-117 AGITATOR W/ ¼ HP MOTOR
GRACO 217-623 PRESIDENT AIR POWERED PUMP