3HAC029855-001

3HAC029855-001

3HAC029855-001

3HAC029855-001

3HAC029855-001

3HAC029855-001

PLC的工作速度要快。速度快、執(zhí)行指令時(shí)間短，是PLC實(shí)現(xiàn)控制的基礎(chǔ)。事實(shí)上，它的速度是很快的，執(zhí)行一條指令，多的幾微秒、幾十微秒，少的才零點(diǎn)幾，或零點(diǎn)零幾微秒。而且這個(gè)速度還在不斷提高中。
圖1－1－1所示的過(guò)程是簡(jiǎn)化的過(guò)程，實(shí)際的 PLC工作過(guò)程還要復(fù)雜些。除了 I/O刷新及運(yùn)行用戶程序，還要做些公共處理工作。 
公共處理工作有：循環(huán)時(shí)間監(jiān)控、外設(shè)服務(wù)及通訊處理等。
監(jiān)控循環(huán)時(shí)間的目的是避免"死循環(huán)"，避免程序不能反復(fù)不斷地重復(fù)執(zhí)行。辦法是用"看門狗"（Watching dog）。只要循環(huán)超時(shí)，它可報(bào)警，或作相應(yīng)處理.

LCS-CC-48 LAMBDA

NEMIC LAMBDA PWB-78H POWER SUPPLY PWB78H MITSUBISHI EDM DWC 90SB 

PERKIN ELMER LAMBDA 35 UV/VIS SPECTROMETER VERY NICE

LAMBDA LCS-E-5-OV USPP LCSE5OV

Coutant Lambda Power Supply DRP-480-3H DRP4803H DRP-48O-3H DRP48O3H


Nemic Lambda Power Supply ES-8-15 FS _ ES815FS _ PWB-49A _ PWB49A


Lambda Regulated Power Supply RWS-600A-24 Rev B _ RWS600A24


Used Cryostatic Gas Purifier From A Lambda Physik Steel 2000 ExCL Excimer Laser

Nemic Lambda Power Supply EC-9- _ EC9 _ 5V _ 5.0 A _ 90-110 V _ 47-440 Hz


Micro Lambda Synthesizer 6-13 GHz BERT Bit Error Rate Tester Tektronix Synthesis

R87114 Lambda Physik PSL-4000 LaserTechnik 208V 3.8KVA Laser & Power Supply

A88644 Perkin Elmer Lambda 35 UV/VIS Spectrometer(L600000C)

7 LAMBDA PHYSIK LASER TECHNIK POWER CONTROLS

9KVA LAMBDA PHYSIK LASER Power Supply 40KV Triple Stac

Lambda Physik EMG 150 LASER 248 nm Excimer Kr-F Head

PERKIN ELMER UV/VIS SPECTROMETER LAMBDA BIO 20 NICE

LAMBDA EMI VARIABLE DC POWER SUPPLY ESS 300-33-2-D-0806

LAMBDA LS SUTTER INSTRUMENTS LB-L5/30 XEON ARC LAMP WITH 10-3 CONTROL

LAMBDA LK343A USPP LK343A

Power Supply A3060874-001 Lambda / Novatronics / Harris 

LAMBDA Electronics- Lambda LZS-1500-3 - REGULATED POWER SUPPLY, NIB, New

DAVID ROSETZKY AUSTRALIAN LAMBDA DIGITAL PRINT "LIVING TOGETHER IS EASY #3 2002

R87235 Lambda Physik FL4000T Dye Laser Parts Repair

Lambda-Emi ESS220-40

Perkin Elmer Lambda UV/VIS Spectrophotometer

LAMBDA TECHNOLOGIES MicroCure 2100 Variable Frequency Laboratory Microwave Used

LGS-FA-24-OV-R LAMBDA

Lambda TDK Genesys 40V - 125A Gen 40-125 Programable DC Power Supply 5 kW

Keba / Lambda Hand Held Terminal HT501 #25242

Perkin Elmer Lambda 3A UV Visible Spectrophotometer 

LAMBDA Programmable Power Supply ZUP60-7 0-60V 0-7A

6 power supply with NL100 Rackmount kit

Perkin Elmer Lambda 3B UV/ VIS Spectrophotometer & Acc.

Lambda Power Supply 80-185-2-1417 working

Lambda Physik LP-4189 Hydrogen Thyratron

TDK-Lambda GEN30-110 Genesys Power Supply, 30V, 110A, 3300W / 3-Phase 208VA

VARIAN LAMBDA POWER SUPPLY, ANALYZER E19009031 00481639

LAMBDA 26290831 FRONT OPTICS MODULE, K2010A

LAMBDA PS-060901-108 *USED*


LAMBDA PS-339125-103 *USED*


LAMBDA 26286027 ROM K2010/K2005, REAR

LAMBDA 27079431 WCM, WT_STD

LAMBDA 9090-00077ITL LEAP AMAG SUPPLY ASSY

Lambda Physik Power-Gator 355-10 Diode Pumped DPSS / Controller Power Supply 10W

LME-24 LAMBDA

Lambda GEN150-22 DC Power Supply 3.3kW 0-150V 0-22A Output NEW
New Out of Box! Includes connecting accessories

NEMIC LAMBDA YM-03-1039TA PLVPS POWER SUPPLY 30 DAY WARRANTY

TDK-Lambda GEN 20-165 / Agilent N8734A

Lambda TCR 250T20-4 Electronic Measurements DC Power Supply 250VDC 20A (C)

Lambda TCR 250T20-4 Electronic Measurements DC Power Supply 250VDC 20A (B)

Lambda TCR 250T20-4 Electronic Measurements DC Power Supply 250VDC 20A (A)

Perkin Elmer Lambda 20 UV/VIS Spectrophotometer

LAMBDA 00493279 NSPP 00493279

Lambda Genesys GEN150-22 DC Power Supply 3300w ***Excellent!***

LAMBDA LXS-EE-20-R NSFP LXSEE20R

LAMBDA LT-862-GPIB USPP LT862GPIB

LME18-2913 LAMBDA

Lambda Invensys GEN100-15 DC Power Supply 00507237 Rev.A GEN1500W working

LAMBDA PHYSIK LEXTRA 200 LASER ABLATION INFLUENCE (USED) @ SINGAPORE 

Lambda Regulated Power Supply SE-500-3 115VAC - 24VDC


TDK-Lambda Genesys GENH750W Programmable DC Power Supply, 750W, qty 2, rackmount

LAMBDA LS SUTTER INSTRUMENTS LB-L5/30 XEON ARC LAMP

(AB01) LAMBDA ELECTRONICS INC 22C2841 WORKING

METROHM BISCHOFF LAMBDA 1010 UV/VIS HPLC CE DETECTOR

LAMBDA Electronics Inc. TVL-5R0 Versa Load

LAMBDA 00493279 USPP 00493279

TDK-Lambda GEN 20-165 / Agilent N8734A DC Power Supply, 0-20 Volts, 165 Amps

Lambda/EMI EMS20-250

LAMBDA LM-EE014 USPP LMEE014

LAMBDA LGSEEA-24-OV-R USPP LGSEEA24OVR

Lambda LLS-9008 DC Power Supply

LAMBDA EMS-160-15.6-2 USPP EMS1601562

LRS-57-5-4 LAMBDA

ZUP36-24 LAMBDA programmable power supply UP36-24


Nemic-Lambda DC Power Supply YM-01-557A working

University Sound * SONY * Altec Lansing / Soundoiler * LAMBDA * NEC * IRP * LOT

Lambda LT-863 Regulated Power Supply

Lambda/EMI BOSS 100-2-1-D Bipolar Operational Source

PREKIN ELMER LAMBDA EZ210 UV/VIS Spectrometer C6950801


LAMBDA REGULATED 0-34VDC POWER SUPPLY

Lambda MX 13150

Lambda/EMI ESS150-100

LAMBDA REGULATED POWER SUPPLY LMF-28-OVMY-3397-3 12A 31V LMF28OVMY33973

LAMBDA REGULATED POWER SUPPLY LMF-28-OVMY-3397-3 12A 31V LMF28OVMY33973 B

LAMBDA LRS-59-28 NSFP LRS5928

LDS-P-48 , LAMBDA POWER SUPPLY

ERG Contract Lambda Metal Series 700/BTSX Chair 

ERG Contract Lambda Metal Series 700/BTDX Chair 

LAMBDA LLS-6120 POWER SUPPLY 0-120V 1.4A DIGITAL NEW


LAMBDA CSF350EQ NSPP CSF350EQ

LAMBDA MC555 USPP MC555

LAMBDA LZSA-1500-3 NSFP LZSA15003

Lambda TCR 20T250-1 Electronic Measurements DC Power Supply 20VDC 250A (D)

Lambda PDC305-202 6 Slot NT ATX Processor Power Supply Unit (PSU) PDC305202

Lambda LMPS power supply, 8-in-one!, NIST-certified


LAMBDA LZS-1500-2 USPP LZS15002

TDK- Lambda ZUP120-3.6 Power Supply


Lambda 05849497 ESS60-60-7-TP-LB-CE-1568A 00510054S

Lambda LT-863-GPIB 0-36V DC Regulated Power Supply 0-115A IEEE-488


Nemic-Lambda AC 50A 200V Power Conditioner PS-1210 working

Nemic Lambda 5V 24V Power Supply Lot LWD30-0524 working

QUALIDYNE LAMBDA SWITCHING POWER SUPPLY 23082 NSN: 6130-01-286-9530 234AA0A-293

Electronics Measurements Lambda/EMI BOS/S 20-20-1-D

ERG Contract Lambda Metal Series 700/B Chair 

LAMBDA REGULATED POWER SUPPLY LRS-54-48 NSN: 6130-01-311-2597

Lambda LK351-FM DC Power Supply 0-36V 0-25A LOAD TESTED

Perkin Elmer UV/VIS Lambda 12


Nemic Lambda EWS1500-12 EWS150012 Power Supply 12VDC 125A +S

LAMBDA LXS-E-5-OV-R USPP LXSE5OVR

TDK-Lambda GENH750W Power Supply, Input Rating 100-240V ~9.5A, 50/60Hz

Lambda LFS-48-12 DC Regulated Power Supply 12V, 48A


LCS-D-48 LAMBDA

LAMBDA LXS-D-5-OV-R USPP LXSD5OVR

Nemic-Lambda DC Power Supply YM-01-557A working 30 DAY WARRANTY

Lambda FE5K-NE/FE5KNE Power Supply Rack System


LAMBDA OMS1000/24 USPP OMS100024

LAMBDA LRS-58-28 NSFP LRS5828

LAMBDA EMI TCR 40T125 DC POWER SUPPLY EXCELLENT 0-40VDC 0-125A 5,000 WATTS 

New ASM 830036067 Power Supply 400w 7amp RMS Lambda 400PFC

EMI 452-94 Inverter Assembly 115-230 Lambda Baker Electronic Measurement Inc TDK

LAMBDA LMS-7018 USPP LMS7018

LAMBDA UEZ1HIJK NSPP UEZ1HIJK

Power One Lambda Astec FAW5-30K HCC15-514 DC Power Supply Lot of 8 Used Working

AGENCY POWER Exhaust Catback for 09-11 Hyundai Genesis Coupe Lambda 3.8L

Lambda GEN 50-30 DC Power Supply, GEN50-30, 50V, 30A

TDK-Lambda FPS3000-24/P 3000W 24V/120A 12V/0.75A Power Supply

TDK-Lambda FPS3000-48/P 3000W 48V/63A 12V/0.75A Power Supply

Panasonic Track Bike. Black. Suntour Hubs Campagnolo Lambda rims new IRO Crank

TDK-Lambda Genesys GENH750W Programmable 750W DC Power Supply Unit Half-Rack PSU


Lambda LMS-7018 Regulated Power Supply 450 Watts


(AB01) MOTOR LAMBDA ELECTRONICS INC RG3S5V610 UPPER MOTOR ASSY WORKING

(AB01) POWER SUPPLY LAMBDA ELECTRONICS INC PFHC-2600 WORKING

Alton LM-30 LambdaMeter Wavelength Lambda Meter LM-30A / Fiber Optic Analyzer


Lambda 110v Power Supply MCAV0106975 PS-369926-002

Lambda Physik EMG-50E Lab UV Excimer Laser Power Supply

LAMBDA PHYSIK EMG-101 LASER WITH POWER SUPPLY NET2 

Nemic-Lambda NND30-1515


Lambda LYS-Y-24