IC600CB526
IC600CB526
IC600CB526
IC600CB526
IC600CB526
入出信息变换、可靠物理实现,可以说是PLC实现控制的两个基本要点。
入出信息变换靠运行存储于PLC内存中的程序实现。PLC程序既有生产厂家的系统程序(不可更改),又有用户自行开发的应用(用户)程序。系统程序提供运行平台,同时,还为PLC程序可靠运行及信号与信息转换进行必要的公共处理。用户程序由用户按控制要求设计。什么样的控制要求,就应有什么样的用户程序。
可靠物理实现主要靠输人(bbbbb)及输出(OUTPUT)电路。PLC的I/O电路,都是专门设计的。输入电路要对输入信号进行滤波,以去掉高频干扰。而且与内部计算机电路在电上是隔离的,靠光耦元件建立联系。输出电路内外也是电隔离的,靠光耦元件或输出继电器建立联系。输出电路还要进行功率放大,以足以带动一般的工业控制元器件,如电磁阀、接触器等等。
QUANTITY OF 10 NETERION X3100 10GBPS ETHERNET NETWORK ADAPTER
QUAD CORE Q9400 3.4GHz OCED GAMING PC w/NVIDIA GT220 1G
Quad Core 2.5GHz 8GB 3000M Backlit BTooth DVDRW Win 7
Quad Core 2.5GHz 16GB M8900 Backlit BTooth DVDRW Win 7
QLogic SANbox2-64 modular Fibre channel fabric switch 64 ports
QLogic SANBox FC Switch 5602 20-Port SB5602Q-20A 4GB Fabric Switch Dual PS
QLogic SANbox BASE Model 9200 Chassis Switch TL260LL/A
QLogic SANbox 9200 Switch 9000 SB9200-32B 31277-12
QLogic SANBox 5600 FC 8-Ports Switch SB5600Q-08A 4GB Fabric Switch
QLogic SANBox 5600 FC 20 Port Switch SB5602-20B 4GB Fabric Switch 4x 10GB
Qlogic QLE8142-SR 10Gb CNA Dual Port PCIe HBA FCoE with 10Gb optical SFP
QLogic InfiniBand 12005-PT16 16-Port 40 Gbps QDR Pass-Thru Module for Dell
QLogic InfiniBand 12005-PT16 16-Port 40 Gbps QDR Pass-Thru Module for Dell
Q64TDV-GH Mitsubishi PLC Milivolt Analog Input 4 Pt Isolated Q64TDVGH
Q63P Mitsubishi PLC Power Supply Module
Q172EX Mitsubishi PLC 2 Channel Synchronous Encoder Card
Q12HCPU Mitsubishi PLC High Speed CPU 124K 4096 I/O
Q02HCPU CPU MODULE HI-SPEED 28K
PWR-RPS2300 CISCO REDUNDANT POWER SYSTEM 2300 AND BLOWER
PWR-ME3750-DC CONFIGURABLE ME-C3750 DC POWER SUPPLY
PWR-ME3750-DC CONFIGURABLE ME-C3750 DC POWER SUPPLY
PWR-ME3750-AC CISCO METRO CATALYST 3750 AC POWER SUPPLY SPARE
PWR-GSR8-AC CISCO 12008 GSR REDUNDANT AC SUPPLY
PWR-C49M-1000AC 4900M AC POWER SUPPLY 1000 WATTS
PWR-C49M-1000AC 4900M AC POWER SUPPLY 1000 WATTS
PWR-C49-300DC CATALYST 4900 300-WATT DC POWER SUPPLY
PWR-C45-4200ACV CATALYST 4500 4200W AC DUAL INPUT POWER SUPPLY 1YR - A
PWR-C45-2800ACV CATALYST 4500 2800W AC POWER SUPPLY W/INLINE POWER
PWR-C45-1400DC C4500 1400W DC TRIPLE INPUT SP POWER SUPPLY 1YR - ASK
PWR-C45-1300ACV CATALYST 4500 1300W AC POWER SUPPLY WITH INLINE POWER
PWR-C45-1000AC CATALYST 4500 1000W AC POWER SUPPLY
PWR-950-AC 950W AC P/S FOR CISCO 7600 AND CAT 6500
PWR-950-AC 950W AC P/S FOR CISCO 7600 AND CAT 6500
PWR-7200-DC CISCO 7200 DC 48V-60V POWER SUPPLY OPTION
PWR-7200/2-DC CISCO 7200 REDUNDANT DC 24V-60V POWER SUPPLY OPTION
PWR-7200/2-DC CISCO 7200 REDUNDANT DC 24V-60V POWER SUPPLY OPTION
PWR-6000-DC 6000W DC POWER FOR CISCO CAT 6500/7600 CHASSIS
PWR-4000-DC 4000W DC POWER SUPPLY FOR CATALYST 6500/7600 1YR - ASK 4 Q
PWR-4000-DC 4000W DC POWER SUPPLY FOR CATALYST 6500/7600 1YR - ASK 4 Q
PWR-3845-AC CISCO 3845 AC POWER SUPPLY
PWR-3825-AC CISCO3825 AC POWER SUPPLY
PWR-3660-AC AC POWER SUPPLY FOR CISCO 3660
PWR-3660-AC AC POWER SUPPLY FOR CISCO 3660
PWR-2911-POE CISCO 2911 AC POWER SUPPLY WITH POWER OVER ETHERNET
PWR-2911-POE CISCO 2911 AC POWER SUPPLY WITH POWER OVER ETHERNET
PWR-2911-AC CISCO 2911 AC POWER SUPPLY
PWR-2821-51-AC CISCO 2821 2851 AC POWER SUPPLY
PWR-2600-AC CISCO 2600/2600XM AC POWER SUPPLY SPARE
PVDM3-64 CISCO 64 -Channel Voice and Video DSP Module
PVDM3-64 CISCO 64 -Channel Voice and Video DSP Module
PVDM3-64 64-CHANNEL HIGH-DENSITY VOICE VIDEO DSP MODULE
PVDM3-32 CISCO 32-CHANNEL HIGH-DENSITY VOICE AND VIDEO DSP MODULE
PVDM3-32 CISCO 32-CHANNEL HIGH-DENSITY VOICE AND VIDEO DSP MODULE
PVDM3-256 CISCO 256-CHANNEL HIGH-DENSITY VOICE AND VIDEO DSP MODULE
PVDM3-256 CISCO 256-CHANNEL HIGH-DENSITY VOICE AND VIDEO DSP MODULE
PVDM3-256 CISCO 256 -Channel Voice and Video DSP Module
PVDM3-192 CISCO 192-CHANNEL VOICE AND VIDEO DSP MODULE
PVDM3-192 CISCO 192-CHANNEL VOICE AND VIDEO DSP MODULE
PVDM3-128 CISCO 128-CHANNEL HIGH-DENSITY VOICE AND VIDEO DSP MODULE
PVDM3-128 CISCO 128-CHANNEL HIGH-DENSITY VOICE AND VIDEO DSP MODULE
PVDM2-48 CISCO 48-CHANNEL PACKET VOICE/FAX DSP MODULE
PVDM2-32 32-CHANNEL PACKET VOICE/FAX DSP MODULE
pulls AP763A Hp StorageWorks MDS 600 Dual I/O Module Option Kit 498472-001
PTZ Camera WDR 680TVL B/W 550TVL Color Samsung Original Module 37X Optical
PTZ Camera 680TVL B/W 550TVL Color Samsung Original Module 37X Optical
PSC Falcon 4220 Windows CE .NET PDA
PRP-1 CISCO 12000 SERIES PERFORMANCE ROUTE PROCESSOR 1YR - ASK 4 QTY
PROVOX 37A8986X012 NSPP 37A8986X012
PROTECH PS-6509 15" TERMINAL MSR POS READY ALDELO
PROTECH PIRAMID SDI-77XL PASSIVE INFRARED DETECTOR
ProSoft MVI56-PDPMV1 DPV1 PROFIBUS Master Module for Allen Bradley
ProSoft MVI56-PDPMV1 DPV1 PROFIBUS Master Module ControlLogix 2012
ProSoft MVI56-MCM MVI56MCM Modbus Communication Interface Module QTY
PROSOFT MVI56-GSC USPP MVI56GSC
ProSoft MVI46-PDPS PROFIBUS DP-V0 Slave Communication Module for SLC 500
PROSOFT MVI46-MCM MVI46MCM
Promise VTrak J630sS hard drive array
Promise Removable Device PR401US Pegasus R4 4TB RAID System 4x1TB SATA
Promise Removable Device PR401US Pegasus R4 4TB RAID System 4x1TB SATA
Promise Removable Device PR401US Pegasus R4 4TB RAID System 4x1TB SATA
Promise Removable Device PR401US Pegasus R4 4TB RAID System 4x1TB SATA
PROLOG NDC-S911 NSPP NDCS911
PROFACE FN-HC10SK41 NSFP FNHC10SK41
ProCurve Switch 5412zl 96G J8700A
ProCurve 9304M Routing Switch Series 9300 J4139A
Processor Cables I/O Board only No Camera Included
Pro Audio/Video System w/CPU Constellation Console
Price includes VAT-Good conditiongood working order
PreSonus FireStudio Mobile Firewire Audio Interface Package Extended
PreSonus FireStudio Firewire Mobile Studio Interface Bundle Extended
PreSonus AudiioBox 44VSL 44 Audio Recording Computer Interface w Headphones
Precision Digital Panel Mounted Temperature Display
PPT Machine Vision Impact C40 Processor Cables I/O Bd
PowerCore CPCI-3750 Single Board CompactPCI® Computer
POWER PROCESS 512-K8705 TEMPERATURE CONTROLLER 2OUT 2AL
POWER AUTOMATION PAMIO-2416 USPP PAMIO2416
portable recording DVR for thermal imaging FLIR cameras scope sights M18 M24 MTM
PMA DC 150-CAN intelligent DDC control PLC 16 digital I/O 9407 700 50341
PLC DIRECT D0-06AR USPP D006AR