描述
状态继电器是PLC在顺序控制系统中实现控制的重要内部元件。它与后面介绍的步进顺序控制指令STL组合使用，运用顺序功能图编制高效易懂的程序。状态继电器与辅助继电器一样，有无数的动合触点和动断触点，在顺控程序内可任意使用。状态继电器分成四类
LEYBOLD INFICON TSP TH200 (5506) TRANSPECTOR
Leybold D4A Trivac Vacuum Rotary Vane Pump
Leybold Heraeus Turbovac 150 on 15 & 3/4″ dia. plate
NEW LEYBOLD INFICON RGA SENSOR ELECTRON PROBE
LEYBOLD-INFICON H200M-4754 ELECTRON MULTIPLIER PROBE
Leybold-Heraeus NT1500 Turbo Pump Controller
LEYBOLD VACUUM 10″ ANGLE VALVE EV-250-ISO-K-EP-VA
Leybold SOGEVAC SV16
Leybold Trivac (LH): D1 6B Pump w/ Groschopp Motor
TURBO PUMP CONTROLLER LEYBOLD TURBOTRONIK NT20 – TESTED
Leybold WA1000 Vacuum Pump
Leybold ZEG 15682 New in box spare
LEYBOLD HERAEUS 85472-1 USPP 854721
