​SST 5136-PFB-ISA@好价格​

SST 5136-PFB-ISA
SST 5136-PFB-ISA
SST 5136-PFB-ISA
逻辑错误检测编程法
PLC控制系统在正常的情况下各输入、输出信号，中间记忆装置之间存在着确定的逻辑关系，一旦出现异常逻辑关系，必定是控制系统出了故障。因此，我们可以事先编制好一些常见故障的异常逻辑程序加进用户程序中，当这种逻辑关系实现状态为“1”，就必然出现了相应的设备故障，即可将异常逻辑关系的状态输出作为故障信号，用来实现报警、停机等控制。例如某工作装置有X0、Xl两个输入，Y0、Y1、Y2、Y3共4个输出

GIDDINGS & LEWIS 502-03550-00R3 INPUT MODULE 16PT QTY

45X75X10 CF BEARINGS QTY

NIB 6C892 OMRON Relay, 5 Pins, SPDT G2R-1-T-AC24

Siemens C98043-A1210-L2?1 SIMODRIVE 6RA27 DC Converter Control Circuit Board

2MEJ3 DAYTON Run Capacitor, 30/5 MFD, 440 VAC, Round

TELEMECANIQUE LC1 D25 K7 100VAC

GE FANUC Genius Bus Controller 1 Channel IC697BEM731

McDonnell Douglas VME 8 CHANNEL RATE MULTIPLIE TRANSITION MODULE 257A092007-1003

McDonnell Douglas VME 8 CHANNEL RATE MULTIPLIE TRANSITION MODULE 257A092007-1001

6-7749 NIB CHAPIN Sprayer Extension Wand

NIB AH6202 6202 AH LOCKING PLUG 20A 125V 2P 3W GRD NEMA L5-20P ... LOT OF 2 ...

2FBT2 SUPCO Thermostat, Adjustable, Differential 40 AT014

NIB Avery 2923 Clip Style Photo ID Badge Holders, Clear NIB

YOKOGAWA SERTEC RM-H6A6ZMR039 W/ GEAR HEAD 6GHA7.5A-Y-1

NIB 6C626 HBL7594

DAYTON 2Z976A NIB DAYTON Pickup Kit, 1-1/4 In

NNB Rate meter scaleable Omega DPF78-A

OPC-G9S-PG 0PC BOARD

TAYLOR 58S402 Control module

ALLEN BRADLEY 1747-L40C SERIES A

NNB ABB 57619066E 1/4 58907987J NINT-52 W/ 58908185F NGDR-02 (TWO)

KTC A65-01384-004 Keyboard

ABB 3BSE006065R1 NAMC-03

Connector FMR0403-92 NEW

Lambda - EWS 50 12 - Power Supply

LOT OF 8 Gould USCC1I Ultrasafe Fuseholder

SIEMENS 6SN1161-1AA01-0?BA0 6SN11611AA010BA?0 SIMODRIVE QTY

USED PHOENIX CONTACT 2280323 DFLK-D25 SUB/B

5RMZ7 MILJOCO Industrial Glass Thermometer, -40 to 110F NIB

NIB PTCE Microswitch Honeywell Pushbutton Contact Block 9219 EQ A156

Gettys Module No. 44-0035-00 qty

STEVECO Relay, Switching 4E945 90-342

HEAT SINK ... LOT OF 8... 1"X1"X 1/2" MEASUREMENT ARE GUESSED

NNB L-COM RA096F LOT OF 7

NNB RST3 RKWT LEAD4 - 3 - 90/0.3

LOT OF 2 Phoenix Contact 5600461 Rail Mount Receptacle/Outl?et, 15 A, 120 VAC