描述
如果主要是模拟量控制、并且函数运算很多,最好采用dcs。dcs在控制器、i/o板、通讯网络等的冗余方面,一些高级运算、行业的特殊要求方面都要比plc好的多。plc由于采用通用监控软件,在设计企业的管理信息系统方面,要容易一些。
SHIMADZU GC O-RINGS FOR GLASS LINERS 036-11203-84 NEW
Shimadzu OptionBox L + ( 2)FCV-14AH + (1)FCV-11AL Valve
SHIMADZU FILTER ELEMENT FOR HPLC EASY TO INSTALL FILTER
Shimadzu RF 5000 U Spectrofluoroph?otometer
SHIMADZU FILTER LENSES (4) for Chromatograph, R,Y,C, UV
SHIMADZU TOC MICRO SYRINGE P/N: 638-59296-00 BRAND NEW
LOT OF 2 SHIMADZU CONTROLLERS MODEL# CFC-14PM!
Shimadzu ELECTROCHEMICAL DETECTOR HPLC L-ECD-6A
Shimadzu Liquid Chromatography Pump Model LC-6A
Shimadzu RF-551 PC Spectrofluorome?tric HPLC Detector
Shimadzu RF-535 Fluorescence Detector HPLC
RF5301PC Shimadzu Spectrofluoroph?otometer 381 hours use
SAVE $14,000 Includes Computer, Flow Thru HPLC cell