描述
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。
DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM w/DIGITAL
DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM DIGITAL 1
DENTAL PORTABLE MOBILE X – RAY MACHINE SYSTEM w/DIGITAL
DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL b4
DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL b5
DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL b6
DENTAL PORTABLE MOBILE X- RAY MACHINE SYSTEM DIGITAL b7
X-RAY TUBE M-113T VARIAN MEDICAL SYSTEMS