描述
DCS是在运算放大器的基础上得以发展的。把所有的函数和过程变量之间的关系都做成功能块(有的DCS系统称为膨化块)。dcs和plc的表现的主要差别是在开关量的逻辑解算和模拟量的运算上,即使后来两者相互有些渗透,但是还是有区别。
MOTOR ASSEMBLY HEADWAY RESEARCH EC101 PN 9-05198 – NEW
DIGITAL PROCESS INDICATOR LONDON ELECTRONIC SYSTEM LTD
EMS ELECTRONIC MEASUREMENTS POWER SUPPLY – TESTED
SIERRACINE/MAGNEDYNE MAGNET DRIVE 1100-0051-00 – TESTED
ALCATEL DE OIL FILTER – TESTED
ALCATEL DE OIL FILTER / TESTED
ALCATEL DE OIL FILTER / TESTED /
ALCATEL OIL FILTER – REFURBISHED
CONTROLLER MKS 919 HOT CATHODE HPS PRODUCT – TESTED
CRYOGENIC VACUUM PUMP CTI 100 CRYOPUMP – REFURBISHED
CTI ON-BOARD WATERPUMP PN 8120949G001- REFURBISHED
DIAPHRAGM VACUUM PUMP VARIAN MD 4V – TESTED