Description
相同i/o点数的系统,用plc比用dcs,其成本要低一些(大约能省40%左右)。plc没有专用操作站,它用的软件和硬件都是通用的,所以维护成本比dcs要低很多。如果被控对象主要是设备连锁、回路相对很少,采用plc较为合适。
Welch DuoSeal Two Stage High Vacuum Pump 1397 17.7 CFM
Allen-Bradley Electric Starter 509-CEB-1 Type 7-9 600V
ALUMINUM PLATE BAR 7075 T6 Size: 62.25x48x1.42
Foundry Source: ALCOA Specification: AMS 250/2 Lot# 6
Stone Machinery Cutoff Saw Model M750
Dahl Green Engraving Machine WIZZ-2000M
R & M LOADMATE 2 TON ELECTRIC Chane Hoist LM10 2 Speed