福建中立恒自动化设备有限公司

输入/输出滞后时间又称系统响应时间，是指PLC部输入信号发生变化的时刻至它控制的有关外部输出信号发生变化的时刻之间的时间间隔，它由输入电路滤波时间、输出电路的滞后时间和因扫描工作方式产生的滞后时间这三部分组成。

输入模块的RC滤波电路用来滤除由输入端引入的干扰噪声，因外接输入触点动作时产生的抖动引起的不良影响，滤波电路的时间常数决定了输入滤波时间的长短，其典型值为10ms左右。

输出模块的滞后时间与模块的类型有关，继电器型输出电路的滞后时间一般在10ms左右;双向晶闸管型输出电路在负载通电时的滞后时间约为1ms，负载由通电到断电时的滞后时间为10ms;晶体管型输出电路的滞后时间一般在1ms以下。

PLC总的响应延迟时间一般只有几十ms，对于一般的系统是无关紧要的。要求输入输出信号之间的滞后时间尽量短的系统，可以选用扫描速度快的PLC或采取其他措施。

以下链接皆有货

NATIONAL INSTRUMENTS FP-2000 ETHERNET CONTROLLER RT SERIES

NATIONAL INSTRUMENTS PXI-8156B COMPACT PCI EMBEDDED COMPUTER #1

NATIONAL MATSUSHITA 8GH 10 M 8GH10M PULLEY INDICATORS

Nationwide Sliding Gate Roller Nylon Cantilever for 4" Square Post x 2"

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NEXEN Air Engaged Shaft Mount Friction Clutch 1.6250" Bore 1/8" NPT 807650 F

Nexen SolidPro Forklift Tire 16X6-8-4.33 EF NM White Non-Marking 27910M32

Nexgen Short Stroke Long Rod Diaphragm Actuator 874590

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Nibco LCS-6822 High Performance 4" Butterfly Valve Carbon Steel CF8M 285PSI

Nibco Lug 8" Blue Cast Iron Butterfly Valve 200PSI N200235LH NO HANDLE

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Nibco PC585-66-LF Silicon Bronze Full Port Press 2" Ball Valve P x P SP-145

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Nibco PC-FP-600-LF 2-1/2" Full Port Lead Free Press Ends 200 PSI Ball Valve

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Nickel Plated Copper 12" x 10/24 Ext Misting Nozzles 52500612N

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Nidec Corp. Hybrid Size 1 Power Brake Signal Extension Cable 13A

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Nidec Permanent Magnet Motor HP .75 RPM 300 36VDC P56SG686

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Nidec VRB-090-10-K3 VRB Series Inline Planetary Gearhead 10:1

 NIHON KOHDEN SON-128 100V POWER TRANSFORMER

Nikko F10 Precision Hydraulic Cylinder 2500Min, 2.9Mpa, 40.1kN

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Nippon Tanshi KC-134AR Female Terminal Connector Pin Inserts

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Nitroset Concrete Impact Driver Set Triple Play Propellant Pin Driver SEE DESC

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NK Technologies AGL3-SDT1-24U-ENE-TR3N Ground Fault Detector 24VAC/DC

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NLB Corporation 6' 40K PSI Orange Sure Shroud Custom Crimp Hose DM60892-6

NO BAR For Rear Sway Bar Kit For 2019-2021 Silverado Sierra 1500 SEE DESC

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NOHAU CORPORATION POD-XA/G3/IE POD BOARD

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NOHAU CORPORATION POD-XA/G3/IE POD BOARD #4

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NON AFM DOD Camshaft Lifters Kit For 2007-2013 Chevy Silverado 1500 3.5L

NORAND 705-305-002/002 HAND HELD BAR CODE SCANNER TERMINAL RT170 SERIES

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Nord Helical Bevel Gear Motor 3PH 1.5HP 150lb SK TU4-EIP 215E-111-340-A SEE DESC

Nord Helical Bevel Gear Motor 3PH 1.5HP 150lbs SK TU4-EIP 215E-111-340-A

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Norgren 6 Outlet Solenoid Valve Manifold 2x910V 24/60 V Orifice 1/8, 1-4" FNPT

Norgren A1039H-A1 Air Pilot Actuated Vacuum Solenoid Valve 2" D24 300 PSIG

Norgren Excelon Combo Filter/Regulator B74G-4AK-QD1-RMN 1/2"NPT 250PSI

Norgren IMI BUSHJOST Solenoid Valve 8253150.8000 2/2 230V 50-60Hz

Norgren K79DA00KS6KU2 Pneumatic Valve 150 PSIG

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Norgren Valve V60P517A-A313J5 & Connector Cable 24VDC 2.0W 54934-30

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Norriseal Wellmark Threaded Safety Relief Valve 1", W2601-CV1-111-250, .295"

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