Description
市场上控制类产品繁多，无论DCS还是PLC，均有很多厂商在生产和销售。对于PLC系统来说，一般没有或很少有扩展的需求，因为PLC系统一般针对于设备来使用。一般来讲，PLC也很少有兼容性的要求，比如两个或以上的系统要求资源共享，对PLC来讲也是很困难的事。而且PLC一般都采用专用的网络结构，比如西门子的MPI总线性网络，甚至增加一台操作员站都不容易或成本很高。
LITHONIA GALVANIZED STEEL MOUNTING/ROUGH-?IN FRAME
Appleton Tcc-125200G Cable Tray Clamp
LINE ELECTRIC COMPANY, 10 AMP, 3 PDT, 12 VDC COIL ICE
POTTER & BRUMFIELD, 10 AMP, 3 PDT COIL 12 VDC
MUELLER NO. 35 VINYL INSULATORS (SET 1 RED & 1 BLACK)
ORIGINAL DIAZED BOTTLE FS, 50 AMP, 500 VOLT
FINDER ICE CUBE RELAY 60.12.8.120.004?0 120VAC COIL
ECG ICE CUBE RELAY DPDT 10 AMPS, COIL 120VAC 50/60Hz
POTTER & BRUMFIELD, 10 AMP, DPDT COIL 120VAC 50/60Hz
LINE ELECTRIC COMPANY, 10 AMP, DPDT COIL 120VAC 50/60Hz
ORIGINAL DIAZED BOTTLE FS, 35 AMP, 500 VOLT
3/4″ EMT COUPLINGS COMPRESSION CAT. NO6075S BOX OF 20
FINDER ICE CUBE RELAY 60.13.9.012.004?0 12VDC COIL
Teradyne ICT 1880 Z1880 1890 1888 Incircuit Test System
