DSQC227

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　扫描周期是PLC的一个重要指标，小型PLC的扫描周期一般为十几毫秒到几十毫秒。PLC的扫描周期长短取决于扫描速度和用户程序的长短。毫秒级的扫描时间对于一般工业设备通常是允许的，PLC对输入的短暂滞后也是允许的。但对某些I/O快速响应的设备，则应采取相应的处理措施。如选择高速CPU，提高扫描速度；选择快速响应模块、高速计数模块以及不同的中断处理等措施减少滞后时间。对于用户来说，要提高编程能力，尽可能优化程序；而在编写大型设备的控制程序时，尽量减少程序长度，选择分支或跳步程序等，都可以减少用户程序执行时间。
GOULD ITE MC1A22 NEMA 1 Motor

SCHNEIDER ELECTRIC GV2P08

PARKER T20025D2F01M16 110/120V 150 PSIG

TURCK BL67 8DO 0 5A P Digital Output Module 6827172

TYCO POTTER & BRUMFIELD CDB 38 70014 .1-10

GROUPE SCHNEIDER MODICON FD6Q Quad Shield 6 Connector Set MA 001

EDISON Dual Element Time Delay Bullet Fuse 400 AMP 600V ECSR400

OPTO 22 PB16HQ Relay Control Module 001824D

ITT BLACKBURN T2BFGKT 8.3KV 200 Amp

ELECTROSWITCH Series 101 CKT 6.7 Rotary Selector Switch 3 Pos 102702LJ 9021

LIMATHERM Pt100/3P Tx Rail

ABB AL9 3010 Contactor 24 VDC 25 Amp 1SBL143001R8110

MARSH BELLOFRAM 960 069 001 T50 0-120 PSI

CATERPILLAR CAT 7E 5816

DILM7 10 EATON Klockner Moeller XStart 24 VDC CONTACTOR XTCE007B10A DILM7-10

GROUPE SCHNEIDER TELEMECANIQUE Load Break Switch 3 Pole 40 Amp V2 055170

G E FBN16TEO50RV 1 pole 50 amp

ABB Fourth Pole Adder OTPS125ED 1SCA022379R7980

Eaton Klockner Moeller DILM12 10 XTCE012B10B

General Electric G E FBV16TEO50RV 1 pole 50 amp

SSAC ENTRELEC ARP215 0302X 24 VAC

BRINKS ARROWHEAD 16 Zone RF Receiver Security Card 4600 ZIB RF

F&F Timing Relay PCU 511 UNI

HONEYWELL 621 1160R 115VAC














ASCO 8030G010 3/8" 110 120 V 5 PSI - 7 PSI

ABL SURSUM RCCB FIP2303

Single Oil Filter Mount HP4 Filter 3303

TELEMECANIQUE RMPT13BD RM PT Module RMPT 13BD

NUMATICS Solenoid Valve 031SS 6252000030 150 PSIG

HONEYWELL Q7300B1008 T7300

ELECTRO SWITCH 101202LN 1109 SR99 Series 101

FIREX ICCNA 544 Fire

BANNER SM31E 26884 Mini Beam 10-30 VDC

ELECTROSWITCH 101304LN 1029 SR99 M800700

RUSSELLSTOLL THOMAS BETTS F34359X 8704R 8705R

OMRON Proximity Switch 12 to 24 VDC E2EV X2E2 1

FAIRCHILD KENDALL 10172 Model 10 Pressure Regulator 3-200 PSI

CARRIER Temperature Sensor 30GT 412 176

CROWN CURTIS ALBRIGHT AFS819L 24B R06 49138

PARKER SHRADER BELLOWS F32VXPG083A Solenoid Valve Block HY992A

CATERPILLAR CAT HARNESS AS 239 7414

OMRON S8VS 01505 ED2 100-240 AC

ASCO Red Hat JKF8262G2 24 V

CURTIS ALBRIGHT SW180 327 24 V Contactor 110613 001 SW180/ 327

TELEMECANIQUE LC1 D2510B6

TURCK MS133EX0R

CARLO GAVAZZI PS31L NS11W1 M00

KB BALLUFF 5823 610A4 24 VAC .1-5 Sec Timer Assembly Series 5800 MLT

SPEEDAIRE 4ZM18A 1/4" Air Pressure Regulator 150-300 PSIG

IFM EFECTOR Proximity Sensor w/ Terminal Block IE8511

IFM EFECTOR Proximity Sensor w/ AMP Terminal Connector IE8508

SCHNEIDER ELECTRIC NSYTRV22PE 2Pts 2.5MM

HONEYWELL Temperature Sensing Element LP914A 1045 5

STANCOR P-6287 40VA Primary 230 Secondary 115 Auto Transformer P6287

MICROSWITCH 206LS1 3-62

TRI TRONICS MDIR5 Polorized Retro MITY-EYE Sensor 16384

ATC DIVERSIFIED ELECTRONICS TUC 120 AKA 300 Time Delay Relay 3-300

RELIANCE ELECTRIC 410403 77AW 9310 Thyristor Diode 0112

FESTO On Off Valve HEE 1/4 D MINI 24 NP

SPRECHER & SCHUH CEP7 B32 2.9 Thermal Overload Relay 1-2.9 Amp 25 211 121 03

ABB OS30ACC12 Disconnect Switch 3 Pole 30 Amp 1SCA022548R9720

DAYTON Current Sensor Relay IEJF5

SPRECHER & SCHUH CRZA7 30 120 V

HONEYWELL 621 0021R

Honeywell 621 1550

SOLA HEVI DUTY Power Supply 24-25.7V SDP 4 24 100LT

GOULD SHAWMUT A4J225 600V 225 Amp HRCI-J

OMRON C200H MR831 Memory Unit Module RAM 16KB

MCI 2021 36140 6 High

EATON KLOCKNER MOELLER XTCD032 Contactor 220V XTCD032D11A0

EATON KLOCKNER MOELLER XTCD016 Contactor 220V XTCD01610AO

MIDLAND ROSS 615 21T200 Time Delay .1-10










AMF POTTER BRUMFIELD 689 CDD 38 30012 DPDT 10 Amp 24 VDC

ABB NFZ31E 21 24-60 V DC

GROUPE SCHNEIDER TELEMECANIQUE ZELIO Timing Relay Timer .1 Sec-100 Hr RE11LMBM

SUPERIOR 591WAS 11ST 118BVT B16 858 700 PSIG

Moeller FAZ C103 Miniature Circuit Breaker 10 AMP 3 Pole

Black Box MicroTransceiver LD Model No. LE2110A

PHOENIX CONTACT UK 10 N BU

TRANSTECTOR DRIZO 220 330 VP Superior Surge Protector DR-120 FSCM 30902

MITSUBISHI A38B MELSEC 8 Slot

PHOENIX CONTACT 189 Input Output Module IB IL 24 DO 2 NPN PAC

SPORLAN TEV SJE 2 1/2 CP60 Thermostatic Expansion Valve 128928

KYOCERA TYCOM 560.0120.220 83 Drill @.800" 0.0120 Dia IR3125327 560 0120 220

CROWN 129377 001 Forklift Wiring Harness 24534 C761331 REV F JC601 JC602

CROWN 115919 Forklift Wiring Harness REV F 26691 PC207

CROWN 143953 PC225 POLLAK

SKINNER V53ADB2100 V5

SCHROEDER A CF 2548

EMM EH6 Terminal Blocks 300 V 12-22 AWG EM EH6

LEVITON 70620 L6-20 250 V 20 Amp

REES 40053 000 P-P R-5B RED

COOPER BUSSMANN FWH 600A 500V 600 Amp

CATERPILLAR CAT D9R Track Type Tractor Parts Manual SEBP2932

CATERPILLAR CAT D8R Series 11 Track Type Tractor Parts Manual SEBP2876 15

RoH5 MCBK09GR VR1 Control Board Module PCB14PC9G 819898

JOHNSON CONTROLS V-2410-2 120 V Solenoid Air Valve V2410 2

DANIEL WOODHEAD Watertight Receptacle 3 Pole 30 Amp 277/480V 69W82 L22-30