PLC还具有即时反馈的功能，人们在进行操作的过程中，可以及时了解到系统的运行情况，可以了解到设备的运行情况，对于设备得到及时有效的测。设备在运行过程中如果发生问题或者故障，系统会进行报错处理，并对故障发生的位置进行显示，通过PLC设备的提示操作进行故障处理，也能够根据PLC设备的反馈情况进行手动处理，增加了人们对故障的应急处理。

MTL 3041 Repeater Power Supply 4/20mA for 2-Wire Transmitters
Weidmuller 7940011718 DPADCV 0-10V
Weidmuller 7940010172 Microseries Signal Converter
Sick iE 1000 SK2 Safety Key Adaptor
Weidmuller 7940010174 Relay Output Module - New No Box 
Weidmuller 7940014450 Relay Output Module - New No Box
Honeywell DC200C-2-00F-200000-0 Temperature Control Minipro - New Surplus
Sick i1001 6021013 Lock Safety Switch
Sew DEH11B Incremental Encoder Card Hyperface Option - New Surplus Open
Triconex 4000056-006 Cable Assembly 6 Feet 
XP DNR18US15 AC-DC Converter 18W 1.2A 15VDC DIN Rail Mount 
Foxboro P0971RE Cable Assembly - New Surplus 
ABB 120204-002 Ion Chamber
Honeywell LSYAC3KPC-FP Heavy Duty Limit Switch - New Surplus Open
SMC EX126D-SMJ1-X2 EX300 Serial Interface Unit - New Surplus Open
Patlite NE-24-Y LED Yellow Beacon
David Brown AH1:280 Radicon Parallel Speed Reducer, 400HP, Ratio 1.84:1
DuPont Kapton RS, Conductive Polyimide Film 200RS100, 8", 1676 ft roll, 16.5 lbs
Cutler-Hammer Medium Voltage Vacuum Contactor, SLN014S7A-554, 400A, 7200V
Schneider Electric Variable Speed Drive, ATV71HD55M3X, 75hp, 55kw, 200-240V
GE, General Electric, 115D2227G3, Printed Circuit Board,
Square D Well-Guard Combination Starter, 8940SSF4100Y1071, Size 4, Rainproof NEW
Westinghouse Insulated Bearing, 519D939G01, NSN: 3110-00-690-4405
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