PCI-6514现货 in stock! 欢迎来电咨询~！！

PCI-6514,

PCI-6514

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一般工业控制系统既包括弱电控制部分，又包括强电控制部分。为了使两者之间既保持控制信号，又要隔绝电气方面的，即实行弱电和强电隔离，是保证系统工作稳定，设备与操作人员安全的重要措施。

　　电气隔离目的之一是从电路上把干扰源和易干扰的部分隔离开来，从而达到隔离现场干扰的目的。

　　一、信号隔离

　　信号的隔离目的之一是把引进的干扰通道切断，使测控装置与现场仅保持信号，不直接发生电的。工控装置与现场信号之间常用的隔离方式有光电隔离、脉冲变压器隔离、继电器隔离和布线隔离等。

　　1.光电隔离

　　光电隔离是由光电耦合器件来完成的。其输入端配置发光源，输出端配置受光器，因而输入和输出在电气上是完全隔离的。由于光电耦合器的输入阻抗(100Ω～1kΩ)与一般干扰源的阻抗(105～106Ω)相比较小，因此分压在光电耦合器的输入端的干扰电压较小，它所能提供的电流并不大，不易使半导体二极管发光。另外光电耦合器的隔离电阻很大(约1012Ω)、隔离电容很小(约几个pF)，所以能阻止电路性耦合产生的电磁干扰，被控设备的各种干扰很难反馈到输入系统。

　　光电耦合器把输入信号与内部电路隔离开来，或者是把内部输出信号与外部电路隔离开来，如图1所示。开关量输入电路接入光电耦合器后，由于光电耦合器的隔离作用，使夹杂在输入开关量中的各种干扰脉冲都被挡在输入回路的一侧。由于光电耦合器不是将输入侧和输出侧的电信号进行直接耦合，而是以光为媒介进行耦合，具有较高的电气隔离和抗干扰能力。

　　目前，大多数光电耦合器件的隔离电压都在2.5kV以上，有些器件达到了8kV，既有高压大电流大功率光电耦合器件，又有高速高频光电耦合器件(频率高达10MHz)。常用的器件如4N25，其隔离电压为5.3kV；6N137，其隔离电压为3kV，频率在10MHz以上。

　　2.脉冲变压器隔离

　　脉冲变压器的匝数较少，而且一次绕组和二次绕组分别绕于铁氧体磁芯的两侧，这种工艺使得它的分布电容特小，仅为几个pF，所以可作为脉冲信号的隔离元件。脉冲变压器传递输入、输出脉冲信号时，不传递直流分量，PLC使用的数字量信号输入/输出的控制设备不要求传递直流分量，因而在工控系统中得到了广泛的应用。

　　图2是脉冲变压器的应用实例。电路的外部信号经RC滤波电路和双向稳压管抑制常模噪声干扰，然后输入脉冲

　　变压器的一次侧。为了防止过高的对称信号击穿电路元件，脉冲变压器的二次侧输出电压被稳压管限幅后进入测控系统内部。一般地说，脉冲变压器的信号传递频率在1kHz～1MHz之间，新型的高频脉冲变压器的传递频率可达到10MHz。

　　3.继电器隔离

　　继电器的线圈和触点没有电气上的，因此，可利用继电器的线圈接受信号，利用触点发送和输出控制信号，从而避免强电和弱电信号之间的直接接触，实现了抗干扰隔离。

　　图3是继电器输出隔离的实例示意图。在该电路中，通过继电器把低压直流与高压交流隔离开来，使高压交流侧的干扰无法进入低压直流侧。

　　4.布线隔离

　　将微弱信号电路与易产生噪声污染的电路分开布线，zui基本的要求是信号线路必须和强电控制线路、电源线路分开走线，而且相互间要保持一定的距离。配线时应区别分开交流线、直流稳压电源线、数字信号线、模拟信号线、感性负载驱动线等。配线间隔越大，配线越短，则噪声影响越小。但是，实际设备的内外空间是有限的，配线间隔不可能太大，只要能维持zui低限度的间隔距离便可。

　　附表列出了信号线和动力线之间应保持的zui小间距。如果受环境条件的限制，信号线不能与高压线和动力线等离得足够远时，就得采用诸如信号线路接电容器等各种抑制电磁感应噪声的措施。

 

1746-R13 SLC Replacement Covers and Labels

1797-TB3S FlexEx Terminal Base

190S-AND2-CB25C 1.6-2.5 A Compact Comb Starter W/Ckt-Bkr

194L-E12-8251 12A 194L Load Switch

20-PP09042 WIRE SET ASSY NON-REGENERATIVE FRONT END

2090-MCNPMP-6S20 MP-Series 20 m Length Power Cable

CBL-30-BT-20 Brake cable for MTR-3S or MTR-3N series servo motors with brake. 20 feet

GC647IFESGDVUNLMT GCC iFIX Optn: ESig & ERec Unl I/O Dev

GFK-2100 IC697VHD001 VME Hard Drive

IC220PWR014 SEGMENT TERMINAL, ELEC FUSED 24VDC (REQUIRES 1 IC220TBK087)

IC647DNP050 "DNP3 Master Protocol for 50,000 points"

IC647S2GM S2G:SECS-II

IC693MDL632RR 125 Vdc Input (8 Points)

IC756DVE000J-97 EO GECK (Graphical Editor Construction Kit) - Unix, Japanese, Version 9.7

MSI-QUAL-100 Quality Management Clients 100 Pack

PLC-5/1771 System 1771-ASBK CONFORMALLY COATED, PLC2, 3, 5 REMOTE I/O ADAPTER

Distributed I/O 1790D-0V16 DNET LDX I/O, 24VDC, 16 SINK OUT BASE, D-SHELL

Communications 1770-CD1 DATA HWY TWINAXIAL CABLE, 100 FT/30 M

Operator Interface 2711E-UK12EK14 PANELVIEW 1200E KEYPAD TO 1400E KEY MIGRATION KIT

Support 9305-RSVADDCZHR SUPT REINSTATEMENT CONTRACT FOR 9305RSVADDCZH

Support 9324-RLDFBDS SUPT RENEWAL CONTRACT FOR 9324RLDFBDEN

DeviceNet Products D9240-6.5.2 DEVICENET SLAVE DEVEL. TOOL SOFTWRE USER MANUAL

RSI Software Products 9301-2SE3400JPE RSVIEW32 RUNTIME 32K (JAPANESE)

RSI Software Products 9371-RSWDI1U1 UPGRADE: IN-SUPT: RSWIRE DET IEC STDAL TO DES PRF

Motion Control 1326AB-B420E-M2L MOTOR,SERVO,460V,5.0NM,3000RPM,MULTI,IP67

2324 Greyline OS, 2 Line, (20) 5MM Chars, VFD, ASCII /Serial Interface, NEMA 4

HE800ACC519 DIN-rail mount Terminal Block, 19-pin. Compatible with most SmartStack Digital I/O. Allows SmartStack I/O to be terminated on panel backplate as an alternative to direct SmartStack termination on panel door.

IC693ACC330 TBQC Base for IC693MDL740, IC693MDL742

QPK3D200L2P/B 6" Monochrome, Blank Label, 24Vdc, UL,cUL,CE,UL1604

TGT-3X6L-1-0 Target series 6 amp servo power module

SCC-DI

152-2000-004

DIGIGRAM PCX924

matrix-vision mvSIGMA-SQ

DGIN-6350F

MTC-61X-V1.1

1492-SPM1B630 MCB Supplementary Protector 63 A

通用型变频器 6SE6 420-2UC13-7AA1 0.37 KW，73 x 173 x 149

电机启动器 3VU13400MH00

1497D-A16-M21-0-2 1EN PURPOSE TRANSFORMER

1608M-400A400V4S 400 A Mega DySC Sag Corrector

1769-OB8 CompactLogix 8 Pt 24VDC D/O Module

190S-AND2-CC10C-KN-V Compact Comb Starter W/Ckt-Bkr

194R-N60-1753-PYS1 Non-Fused 194R Disconnect Switch

2090-CPBM7DF-16AA25 MP-Series 25m Standard Cable

2090-XXTFMP-S15 MP-Series 15 m Length Feedback Cable

CBL-T7-MP-30 Power cable for MTR-3T10 or MTR-3T20 or MTR-3T40 series servo motors. 30 feet

GF-3215R Connecting FlashCable to Mettler PM/ SM, Toledo.

IC200UDR002-24 Qty of 24, 14 point PLC, (8) 24VDC In, (6) Relay Out, 24 VDC Power Sup ply

IC646TRT000 Unlimited I/O Point Runtime System

IC647PATBRK0 Proficy PAT - Driver For Bruker Ftir Spectrometers

IC693APU300CA Conbal Coated High Speed Counter

IC752ECD500RR Display Station 1492 - 14 inch XGA (1024x768) resistive touch screen/ Pent ium 133/ 32MB/ 1.2 Gig hard drive/ expansion slots/ Ether net/ with CIM PLICITY HMI and Win 95

IFIXONNODE500M iFIX Upgrade to On-Node 500 Tag Standard Edition Historian with Alarm & Event Option, M4 Key

SLC/1746 System 1761-CBL-AS03 CABLE: SLC FIXED, 5/01, 5/02 & 5/03 RJ45 TO PORT 3

Industrial Computers 6186-M20RK VERSAVIEW 20 INCH MONITOR, TEMPERED GLASS

Application-specific products 1404-M505A-DNT MASTER MODULE - PQ DNET COM

Operator Interface 2711-K10C10L1 PV1000 COLOR KEY, DNET & RS232 PRINT

Support 9301-2SE3100ZHR SUPT REINSTATEMENT CONTRACT FOR 93012SE3100ZH

Support 9380-RSBEDRCPS SUPT RENEWAL CONTRACT FOR 9380RSBEDRCP

DeviceNet Products 1738-ADN18P DEVICENET ADAPTER WITH MINI PASS THROUGH

RSI Software Products 9301-2SE3203DEE RSVIEW32 RUNTIME 300 WITH RSLINX (GERMAN)

RSI Software Products 9358-BPCNT60U2R UPGRADE: OUT-SUPT: RSBATCH PC-BASED 10 TO 60

Motion Control MPL-B4520P-SK24AA MOTOR,SERVO,6.1 NM,5000RPM,SINGL,460V,BRK

Motion Control 2090-SCVG200-0 SERCOS FBR CABL,CONN,STNDRD PVC JKT,GLASS,200.0M

GFZ-0043 Genius I/O System Troubleshooting Guide for Series Six PLC

IC646MPC001 Logic Developer - PLC Configuration Tools

MTR-1324-N-D-E-0 Stepping Motor, Nema34, Series Wdg

QPJ-ABD-201 Communication Module for 5 inch & 6 inch: AB DataHighway Plus/ UL/ cUL/ CE/ UL 1604

PXIe-5170R

E2073-66501-3643-02-1999

MATROX MGI PH-P256

PBA75F-12

PEAK 635

KINO-DH810-R10

1492-PDE1142 200 A Enclosed Power Distribution Block

中央处理单元 6ES7417-4XL04-0AB0 CPU417-4，20MB，30ns，电源 24VDC，MPI/PROFIBUS-DP 主站接口，PROFIBUS-DP 主站接口

变送器 3RS17062FE00

1495-N80 Line Side Cover

1585J-M8TBJM-4 RJ45 Ethernet Media

1761-CBL-AS09 MicroLogix Cable

188-K3B200-N Miniature Circuit Breaker 20 A

194L-E16-3254 16 A 194L Load Switch

2090-CPBM4DF-16AF25 MP-Series 25 m Length Cable

2090-XXNFMF-S25 Kinetix Drives 25m Standard Cable

BC647OEM0500B OEM Edge Program - Complete

GC647PATCDI0 Proficy PAT - Driver For CDI - Assist Support

IC200MDD845 Mixed 24VDC POS LOG b group 16 point / isolated 2 amp relay output 8 point.

IC646NRX005 System Sentry - 5 Node

IC647MBP001 Machine Edition Professional Development Suite with USB Hardware key

IC675PCB002 Profibus Cordset 2.0 Meters

IC697MDL740RR 24/48 Vdc Output, 2 Amp, Positive Logic (16 Points)

IC800SLT001 SL series amplifier terminal block for APM and DSM motion controller interface

ControlLogix/1756 System 1756-CPR2 REDUNDANT POWER SUPPLY CABLE

Industrial Computers 6182H-15BRH4B VVCE 1500, KEY/TOUCH, STD MEM, ENET, AC

Process Control 1757-DNBEXP20 DEVICENET MODULE EXPANSION, 10-20 MAX

Operator Interface 2711P-ST6KM PV PLUS 600 GRAYSCALE, KEYPAD STARTER KIT

Support 9326-AD10WDS SUPT RENEWAL CONTRACT FOR 9326AD10WDENE

Support 9371-EDES2R SUPT REINSTATEMENT CONTRACT FOR 9371EDES2

ControlNet Products 1738-ACNR CONTROLNET REDUNDANT ADAPTER

RSI Software Products 9301-2SE240ITU5R RSVIEW32 WORKS 5K-32K UPGRADE OUT-SUPT (IT)

RSI Software Products 9358-B60UB1 UPGRADE: IN-SUPT: RSBIZWARE BATCH 60 UNT TO BUNDLE

Motion Control MPL-A430P-SK24AA MOTOR,SERVO,5.42 NM,5000RPM,SINGL,230V,BRK,8.2KG

Motion Control 2090-UXNFM-S09 CABLE,ULTRA, DRIVE CN2 TO N/C,9M

CBL-1C-ET-30 Encoder Cable, MTR-1216, 1221 & 1231 Stepping Motors, 30 Ft.

IC630MDL310RR High Speed Counter Module

IC800SLCFLYV030 Flying Lead Cable, 1-5 kW SL Amplifier I/O to OCS or 3rd Party Controller, 3 Meters

OC647IFSETKTM iFIX Optn: System Extension Toolkit (M4 Part)

PXI-2570

ACS-6172VE

Radiant PC11171

Asus/华硕P8B-X

RK-610 NUPRO-852/HPCI-

GE-400-PG

1492-MCBA190 Miniature Circuit Breaker

1494V-DJ622-A-B-D-E NEMA Flange Mtd Rod Switch Disconnect Sw

软启动器 3RW44566BC45

工程组态编程软件 6AV2103-2HX04-0BD5 SIMATIC WinCC 专业版 Powerpack 4096 PowerTags -> max. PowerTags V14

1585D-M4UBJM-5 1585D Ethernet Media Patchcord

1756-L72EROM ArmorControlLogix On Machine Controller

1799-COV20 Embedded I/O Plastic Cover

194E-FA16E-P11-PE 194E Load switch

2090-CFBM6DF-CBAA20 TL-Series 20m Feedback Cable

2090-SCNP5-0 Kinetix 5-5m Fiber Optic Cable

BC646MPM101 Logic Developer PLC Nano/Micro with Programming Cable with Proficy GlobalCare Complete

GC647APC001 GC PA Production Client

HMI-CCT-201 BACKLIGHT TUBE 10.5 inch Color STN (QPI2xxxxS2P) or TFT (QPI2xxxxC2P)

IC641VPD050 VersaPro Distributor Demo 50 Pack

IC647IFGLBLRLYSRVRM iFIX WebSpace Relay Server includes 25 Users

IC660EBR100 Electronic Assembly for IC660BBR100

IC697ACC700 Terminal Block, 40 Contacts (qty 6)

IC756WRE499E-28 Runtime License for Windows 100+ Users, Per User, English v2.8

FlexLogix System 1794-IE8K CONFORMAL COATED, ANALOG INPUT MODULE, 8 POINT

PLC-5/1771 System D6200-6.4.12JP PLC5 PROGRAMMING SW I/O CONFIG. MNL (JAPANESE)

Process Control 1757-SRC1 1757 REDUNDANCY MODULE CABLE - 1 METER, 3.28FT

Operator Interface 2711P-T10C4D2 PV PLUS 1000, TOUCH, ENET, DC PS, EXT MEM

Support 6001-A1DBR SUPT REINSTATEMENT CONTRACT FOR 6001A1DB

Support 2711-END1FRS SUPT RENEWAL CONTRACT FOR 2711END1FR

Support F1785-L46BSERE FIRMWARE UPGRADE FOR 1785-L46B PLC5 PROCESSOR MODU

RSI Software Products 9301-2SE2304 RSVIEW32 WORKS 1500 WITH RSLINX SINGLE NODE

RSI Software Products 9701-VWSS000FRU3 RSVIEW SE 250 TO UNLTD DISP UPGRADE (FRENCH)

RSI Software Products 9399-RSBARG RSBATCH ARCHIVER REFERENCE GUIDE

Motion Control 1394C-SJT10-A MODULE,SYSTEM,10KW,SERVO,W/ANLG INTF,NO HIM

BC646MODEV10PK Motion Developer 10-pack Proficy Global Care Complete for the S2K Series Amplifiers/Controllers

IC300OCS057 MiniOCS with 2x20 LCD & 16 keypad & onboard IO (no expansion) 8 DC bs (pos/neg)without CsCAN, 8 DC Outputs (pos), 4 ISOLATED analog in (20mA), 2 ISOLATED analog out (20mA)

IC752WFB204 Display Station 2020 Series - w/ touch - 12.1" SVGA (800x600), Pentium 233 MHz, 64 MB RAM, 6.4 GB HD, expansion slots, Ethernet, floppy drive, CD ROM front access, built-in keypad, HMI for CNC, HSSB card, Win NT

MTR-3T21-G-R-0-M-SRR Servo Motor Metric with Seal

PCI-6225

AR-B1684VL

DiVA011-1104-481

PWS-1K28P-SQ

IAC-H487A

SPI-8151-LLVA

1492-L3-W IEC Term Blck 5.1x59.5x31.3mm Spr Clp

1494C-CM11 Cable Mechanism

软启动器 3RW44261BC34

附件 6ES7 954-8LF02-0AA0 存储卡：24 MB

1585A-DD4JD Accessories Ethernet Media

1746-RT28 SLC Replacement Terminal Block

1790D-T0A6 CompactBlock LDX 6 Point O/P Base Block

194E-A32-1753 32 A 194E Load switch

20-PP12001 OPTICAL FIBER SET

2090-CSBM1DF-18AF11 Kinetix Cable Single DSL 2090-Series

20AC043C3AYNANC0 PowerFlex 70 AC Drive 43 A at 22 kW 20A

GC646MBP001 Proficy GlobalCare Complete for ME Professional Development Suite

HE670IBU100 Discontinued Part. Check with GE IP on migration path.

IC600LX680RR 64K Logic/16K Register Memory Module

IC647HSTESEO100KM eSignature Option for Historian - Enterprise Server 100000 Points (M4 Key)

IC655CCM500RR Communications Control Module (CCM)

IC694MDL230 Input module, 120 VAC 8 point, isolated per point.

IC756SDV001K-99 DV Development - Solaris Op Sys Addt'l User, Korean, Version 9.9

MicroLogix 1500/1769 System 1769-IQ16 16 POINT 24 VDC SINKING/SOURCING INPUT MODULE

PLC-5/1771 System 1785-KA5 COMMUNICATION MODULE DATA HWY PLUS TO DATA HWY 485

Distributed I/O 1794-TB3G 3-WIRE GROUNDED TERMINAL BASE - SCREW CLAMP

Communications 9399-WABUG WINTELLIGENT LINX FOR A-B PROG. CONTROL USER GUIDE

Support 9311-PASJR 9311PASJ SOFTWARE SUPPORT CONTRACT REINSTATEMENT

Support 9358-BTDS30R SUPT REINSTATEMENT CONTRACT FOR 9358BTDS30ENE

Support F1771-NXXSERA FIRMWARE UPGRADE FOR 1771-N SERIES I/O MODULE

RSI Software Products 9324-RLD0U7PTE RSLOGIX 5000 SERVICE ED TO PRO UPG, PTG

RSI Software Products 9301-OPCSRVENE KEPSERVER ENTERPRISE

RSI Software Products 9358-PLTM2200ENE RSBIZ PLNTMET SEV 10 BELL

Motion Control 8720SM-022S2GAS2 22 KW/48 AMP, 750VDC, AC MOTOR WITH SRM60 ENC.

840-RC-15 15" Ribbon Cable. Term Both Ends W/16 Pin DIP Plugs

IC200MDL940 OUTPUT RELAY 2.0A PER PT ISOLATED FORM A 16PT

IC697VAL314 Analog Output, Isolated, 4 channel, 12 bit, Current - 4 to 20mA. Removable temrinal block, no cable required

MTR-1331-J-N-D-E-S MTR series NEMA 34 splashproof stepping motor with series winding connection

NATIONAL INSTRUMENTS MC-GPIB

FSC-1719VNA

Miranda DigiLinx 视频语音卡 0044-9700-700

KH-G41

FAB114-13A3P8

PROX1660

PCI-8604PS

1492-SPM3B500 MCB Supplementary Protector 50 A

软启动器 3RW40372BB04

中央处理单元 6ES7 212-1AE40-0XB0 CPU 1212C DC/DC/DC

150-F85NBRB SMC Flex Smart Motor Controller

1734-IT2I POINT I/O 2 Point Thermocouple Input

1783-HMS16TG4CGN Stratix 5400 20 Port Managed Switch

193-ER1A Remote Reset Solenoid

20-750-EMCBUS1-F8 PF750,FR8,IP00,EMC BUS, TERMINATION KIT

2090-CPWM7DF-14AA03 MP-Series 3m SpeedTec Standard Cable

2098-DSD-075-SE Ultra 3000 Servo Drive

GA646IFCLNTCRO100 GCA iFIX iClientTS Read Only 1 PK Runtime Version

GFK-2222 PACSystems CPU Reference Manual

IC220TBK123 I/O TERMINAL STRIP, 12 POSITION SPRING STYLE, OUTPUT, QTY 10

IC647GE9C GE9:GE Fanuc Ethernet

IC647SGM001 Scheduler Series and Groups Module

IC693MDL646CA Conbal Coated Input module 24 VDC 16 point POS/NEG ogic. 1msec filtering.

IC756DVE010K-99 EO GECK (Graphical Editor Construction Kit) - Inb x87, Korean, Versi on 9.9

MSI-QUAL-UNL-43 Unltd Site Clients - Quality Mang-43

PLC-5/1771 System 1771-DS LATCHING INPUT MODULE, 10-27V DC, 8 INPUTS

Distributed I/O 1790D-N0C2 DNET LDX, 2 OUTPUT ANALOG CURRENT BSE,D-SHELL CONN

Communications 1770-XE DATA HWY 15 PIN CONNECTOR KIT, (FEMALE)

Operator Interface 2727-M7P20D1Q3 MOBILEVIEW MACHINE TERMINAL MT750

Support 9305-RSVADFCPTR SUPT REINSTATEMENT CONTRACT FOR 9305RSVADFCPT

Support 9515-RSAAMRCTS SUPT RENEWAL CONTRACT FOR 9515RSAAMRCTENE

EtherNet/IP Products 2706-P44R INVIEW MESSAGE DISPLAY. 1 OR 2 LINE

RSI Software Products 9301-2SE3400PTU5 RSVIEW32 RUNTIME 5K-32K UPGRADE IN-SUPT (PT)

RSI Software Products 9515-RSCMP075ENE RSGUARDIAN MIGRATION PROMOTION, <=75 DEVICES

Motion Control 1326AB-B430G-S2L MOTOR,SERVO,460V,6.4NM,5000RPM,SINGL,IP67

4161-2-24-N12 BCD To 7 SEG Display . 2 Digit, 24VDC. NEMA 12

HMI-BEZ-406 BEZEL 7.5" (QPGCXXX0000) STAINLESS STEEL

IC693BEM331 Genius Bus Controller

QPLCTAE0000 12.1" Color TFT, Ethernet, CF Card, 110VAC

TGT-E00A-2-0RR Target Axis Expansion Module, 3' Rack Linker Cable

SCC-AI05

DMAX/C 采集卡 950-02

W26361-W19-X-03

P4GE-MX

PCA-6011