TRICONEX 3008

2.3 条件分隔扩展技术
在各种数控装置中，自动和手动是较常用的两种控制方式。手动工作方式的大量按钮，占用了很多的输入点，操作面板上的控制按钮大多是为手动方式准备的，仔细分析会发现有些手动控制中使用的按钮在自动方式中根本就不会出现。因此，我们可将这些不会同时出现的输入信号按工作方式分成两组，使它们在不同的工作方式中接入相同的输入点，从而达到节省输入点的目的，这种方法即为条件分隔扩展技术。具体方法如图８所示。
图8中，HK为工作方式转换开关(如1位为自动，2位为手动方式)，必须占用一个点X0，以便在梯形图中区分不同的作用;X1、X2、X3为重复使用的输入点，这3个点分别接不同作用的开关，通过转换开关方式的选择，使点在不同时期起不同的作用，又为了避免寄生电路引起各点互相牵扯，各开关必须通过二极管或门再接到输入点上。像图８所示电路可节省6－4=2个输入点，达到了节省输入点的目的。Ingersoll Rand 10SC 10" Split Case Water Pump 2800 GPM 1750 RPM


YAMADA DP20-F DP20F 0.5Ma 


ASHCROFT GPSN4HV25XCG3A ASHCROFT PRESSURE SWITCH 200PSI GPSN4HV25 


Teledyne Farris Valve 187 5-OL 5-0L 1875-0L 1875-OL 2" 


ENDRESS & HAUSER 4" 8 BOLT LSC-1145  LSC1145PUMO 


TLV STEAM TRAP 1 1/2" 600 PSIG JH7RL-X14 JH&RLX14


Refrigerating Specialties A4AL Valve 2 1/2" 2.5" 0-150psi NH3 R12 R22 R502 


PCC Valves & Controls Valve PCC QSR07-60 


304 Stainless Steel Flex 12" X 19" 


HOWE Vintage Antique Industrial 


BURKERT 8630 VALVE SYST-2031-15, 0 ABVSS042-8630 US50X14, 2031 A 15.0


316 Stainless Steel Flex 6" X 12" long Pipe Expansion Joint Fitting SS 8 - Bolt


Schroeder Hydraulic Return line filter TFSKBPVS1 300psi 300 Psi


316 Stainless Steel Flex 6" X 12" long Pipe Expansion Joint Fitting SS 8 - Bolt


Long Stainless Steel Woven Mesh Flexible Coupling Flanged 4" ID 304 SS


FREELIN WADE 1A-025-27-1000 


VERSA FOOT LEVER AIR VALVE VNT 3601 VNT-3601 VNT3601 3/4" 


HYDROSEAL Safety Relief Valve 4FRV00F/E0 


NEW ABB PRESSURE TRANSMITTER 544TB01341A0110-1000-56412


12" Long 2" ID Stainless Steel Flexible Coupling 2150 F316 316 SA182 B16.5 SS


Flow components 12" Long 2" ID Stainless Steel Flexible Coupling 304 SA182 B16.5


Heizelement 7 kW 3x 480V 011.325.016-10 Daetwyler ET1210199 


IDEAL 12" Long 2" ID Stainless Steel Flexible Coupling SA182 B16 150 304 SS


316 Stainless Steel Flex 4" X 12" long Pipe Expansion Joint Fitting SS 8 - Bolt


Flow components 12" Long 2" ID Stainless Steel Flexible Coupling 316 316L A182


Brooks Flow Meter Totalizer Tri-10 9853AC2A1B1A1A2 


SMC Valve EAV4000-F04-5YO-Q 


CEPEX CPX22272VIT CPVC SOC 3" 


SKINNER XH935HB2150 XH935HB2150 30-150 psi 120 v


HYDROSEAL 1EV00 


TELEDYNE 18500L PRESSURE RELIEF VALVE 3/4 X1 50 psig 561 lbs/hr.sat.STEAM


CEPEX CPX21162 IND. BALL VALVE T/U 3" SOCKET THREAD PVC TEFLON VITON 21162


Asahi AV Gate Valve Type C 2" Type-C PVC U-PVC 7110425 NEW


CEPEX VALVE 4" Butterfly CPX02583 PVC-U PVC D110 D110x4" D.110 EDPM 02583 


4" 304 STAINLESS STEEL SS, Rigid Coupling THREADED Pipe fitting, YIH150


ROSEMOUNT ANALYTICAL 524-019500 


CEPEX Industrial VALVE 2-1/2" Butterfly, PVC, Viton, D63-75, 2.5",1.0MP


ECN KORNS 3" RIGID STEEL CONDUIT ELBOW 90 Degree GALELB3X90 3" 90DEG 18" SPAN


CAB, Bag Filter, Water, 100 MI, filter bag, 50-117C, 11-3/4" X 17"


SUN 8H79 FXEA-XAN 20 GPM 


KTR ROTEX GS 24 Expansion Hub Coupling 5/8" Bore 13/16" Bore


ECN KORNS 3" EMT ELB 90 Degree Elbow Tubing Conduit EMTELB3X90 18" SPAN


ASCO Red Hat 168-677 Spare Parts Kit for 8210A30.A38 8211A30.A38


ME MADISON ELECTRIC 2 1/2" EMT CONDUIT ELBOW 90 Degree 90DEG 2.5" TT-1021


Apollo 161T-LF Bronze Swing Check Valve, 3/8" NPT, Potable Water Class 125


CEPEX CPX27362 


NIBCO 8" Socket 4501 Coupling PVC Pipe Fitting Coupling schedule 80 829-080


ECN KORNS 1 1/2" RIGID STEEL CONDUIT ELBOW 90 Degree GALELB1-1/2X90 DEG 11" SPAN