描述
采用并行总线,其I/O模件必需与控制器模件相邻。采用串行总线的情况下,I/O板和控制器之间的距离也要比较近才行。最好把控制器模件和I/O模件装在一个机柜内或相邻的机柜内。远程I/O应该采用现场总线。如CAN、LONWORKS、HART总线等。现场总线是90年代初发展起来的
MKS 252C Exhaust/Throttle Valve Controller (2) Availble
NEW THK HSR45 HSR 45 Linear Slide + 730mm (28.75″) Rail
P/N HSR45ASSCOE+730LSPE II
Gefran GTS Solid State Relay SSR Power Module 440v 55a
MKS 253A-1-40-1 32mm Exhaust Throttle Control Valve
Headway Vac Steal 26G Vacuum Pump Ballast stabilizer
Vision Engineering Beta Alpha Lynx Microscope Head
GE Druck Unomat TRX-II iS Documnting Process Calibrator
Simulates/Reads RTD’s/thermocouples, pressure, volt/amp