QDA-EDT-SITE,QDA-EDT-SITE,QDA-EDT-SITE
可編程控制器的硬件系統組成（圖）
可編程控制器的構成框圖和計算機是一樣的，都由中央處理器（CPU）、存貯器和輸入/輸出接口等構成。因此，從硬件結構來說，可編程控制器實際上就是計算機，圖1是其硬件系統的簡化框圖。從圖中可以看出PLC內部主要部件有:
（1）CPU（Central Process Unit）
CPU是PLC的核心組成部分，與通用微機的CPU一樣，它在PLC系統中的作用類似于人體的神經中樞，故稱為“電腦”。其功能是：
a、按PLC中系統程序賦予的功能，接收并存儲從編程器輸入的用戶程序和數據。
b、用掃描方式接收現場輸入裝置的狀態式數據，并存入映象寄存器或數據寄存器中。
c、診斷電源、PLC內部電路的工作狀態和編程過程中的語法錯誤。
d、在PLC進入運行狀態后，從存儲器中逐條讀取用戶程序，經過命令解釋后按指令規定的任務，產生相應的信號，去啟閉有關控制門電路。分時分渠道地去執行數據的存取、傳送、組合、比較和變換等操作，完成用戶程序中規定的邏輯式算術運算等任務。根據運算結果，更新有關標志位的狀態和輸出映象寄存器的內容，再由輸出映象寄存器的位狀態式數據寄存器的有關內容，實現輸出控制、制表、打印式數據通訊等。
PLC常用的CPU主要采用通用微處理器、單片機或雙極型位片式微處理器。通用的微處理器常用的是8位機和16位機，如Z80A、8085、8086、6502、M6800、M6809、M68000等。單片機常用的有8039、8049、8031、8051等。雙極型位片式微處理器常用的有AMD2900、AMD2903等。
Allen Bradley 2711-K5A2 /F PanelView 550 FRN 3.01 Mono/Keypad/DH-485
ALLEN BRADLEY 2711-B5A2 SER. A REV. E FRN 1.03 PANEL VIEW 550 **
ALLEN BRADLEY 2706-D21J2 SER.B MESSAGE DISPLAY * IN A BOX*
ALLEN BRADLEY 2705-P32J3L 2705P32J3L
ALLEN BRADLEY 25B-B011N104 25BB011N104
ALLEN BRADLEY 22B-D4P0N104 22BD4P0N104
ALLEN BRADLEY 22B-D010N104 22BD010N104
ALLEN BRADLEY 22B-B8P0C104 22BB8P0C104
ALLEN BRADLEY 2100 SIZE 4 MOTOR STARTER FUSIBLE F MCC MCCB BUCKET 1-AWG
Allen Bradley 2100 Series 26"Motor Control Bucket W/30HP 1336F-BRF30-AN-EN Drive
ALLEN BRADLEY 20AD2P1A0AYNANC0 20AD2P1A0AYNANC0
Allen Bradley 20AD027A0AYNANC0 /A PowerFlex 70 AC Drive 480V 27A 20HP, Read!
ALLEN BRADLEY 20AC1P3A0AYNANC0 20AC1P3A0AYNANC0
ALLEN BRADLEY 20AB4P2A3AYYARC0
Allen Bradley 2094-BMP5-S Axis Module Series A
ALLEN BRADLEY 2094-BC01-M01-S 2094BC01M01S
ALLEN BRADLEY 2050-M713566/1 2050M7135661
ALLEN BRADLEY 1MEG LOGIC PROCESSOR MODULE 5250-LP3/B 96802480
ALLEN BRADLEY 193-EC2EE 193EC2EE
ALLEN BRADLEY 1794-IP4 1794IP4
ALLEN BRADLEY 1791ES-IB8XOBV4 1791ESIB8XOBV4
Allen Bradley 1791-24AB/B
Allen Bradley 1785-L40L Series C Firmware Rev G
Allen Bradley 1784-KTCS /B ControlNet ISA/EISA Bus Interface Scanner Card Qty
ALLEN BRADLEY 1784-F30F 1784F30F
ALLEN BRADLEY 1784-F30B 1784F30B
ALLEN BRADLEY 1784-F30A 1784F30A
ALLEN BRADLEY 1784-CPCIDS 1784CPCIDS
ALLEN BRADLEY 1775MX **REP**
ALLEN BRADLEY 1775-CX 1775CX
Allen Bradley 1771-P7/C Power Supply -
ALLEN BRADLEY 1771-ODZ 1771ODZ
Allen Bradley 1771OD16B 1771-OD16/B Isolated Output Module SD1SY6YG -
Allen Bradley 1771-OBN | Tested with 12 month warranty
ALLEN BRADLEY 1771KG **NNB**
Allen Bradley 1770-KF2
Allen Bradley 1769-OF4CI | Analog Output Module - Mfg 2012
ALLEN BRADLEY 1762-L40BXBR -MFS- 1762L40BXBR
ALLEN BRADLEY 1762-L40BWAR -MFS- 1762L40BWAR
ALLEN BRADLEY 1761-L20BWA-5A -MFS- 1761L20BWA5A
ALLEN BRADLEY 1756-M1 1756M1
Allen Bradley 1756-IF8 36-Pin Analog Input Module ! WOW !
Allen Bradley 1756-EN2T /C ControlLogix EtherNet Bridge Module F/W 4.003 Qty
ALLEN BRADLEY 1756-CNB -- 1756CNB
ALLEN BRADLEY 1747-L541 SER.C PROCESSOR UNIT WITH KEYS **
ALLEN BRADLEY 1747-L541 SER.B W/ KEY SLC500. 5/04 CPU **
ALLEN BRADLEY 1747-L20N 1747L20N
ALLEN BRADLEY 1747-L20B 1747L20B
ALLEN BRADLEY 1746-OB32 1746OB32
ALLEN BRADLEY 1746-NIO4I SER.A ANALOG COMBINATION I.O MODULE * OUT OF A BOX*
Allen Bradley 1746-0W16 Module 1746-OW16 Series C (Pack of 10) -
ALLEN BRADLEY 1745-E154 1745E154
Allen Bradley 1745-DEMO-3 SLC150 Trainer Module ! WOW !
ALLEN BRADLEY 160S-AA04NPS1P1 160SAA04NPS1P1
Allen Bradley 160-BA04NPS1P1 Speed Controller
ALLEN BRADLEY 1606-XL480EPT -FS- 1606XL480EPT
ALLEN BRADLEY 154-A11NA 154A11NA
ALLEN BRADLEY 152384 152384
ALLEN BRADLEY 150-A24NB 150A24NB
ALLEN BRADLEY 1494G-DF3N 1494GDF3N
ALLEN BRADLEY 1494G-BF3N SERIES 1 ENCLOSED DISCONNECT SAFETY SWITCH,
ALLEN BRADLEY 1494G-BF2R2-412-414-988 SERIES 1 DISCONNECT SWITCH,
ALLEN BRADLEY 1440-REX00-04RD 1440REX0004RD
ALLEN BRADLEY 140U-H6C3-C40-A-MT SERIES B CIRCUIT BREAKER 3 POLE,
ALLEN BRADLEY 140M-I8E-D20 140MI8ED20
ALLEN BRADLEY 135354-02 13535402
ALLEN BRADLEY 1336-PB-SP14A SERIES A CHARGER BOARD * IN A BOX*
ALLEN BRADLEY 1336F-BRF10-AN-EN DRIVE 1336FBRF10ANEN
ALLEN BRADLEY 1336E-BRF10-AN-EN-HA2-L8E 1336EBRF10ANENHA
ALLEN BRADLEY 133598 133598
ALLEN BRADLEY 133583 133583
ALLEN BRADLEY 1334-50387-002 133450387002
ALLEN BRADLEY 1326AB-MOD-G3 1326ABMODG3
ALLEN BRADLEY 1326ABC3E21K7 **NNB**
ALLEN BRADLEY 1326AB-A3E-11 SERVO MOTOR **
ALLEN BRADLEY 1305-BA06A-HA2 SER.C AC DRIVER * OUT OF A BOX*
ALLEN BRADLEY 1305-BA03A 1305BA03A
ALLEN BRADLEY 1305-BA01A *NIB*
ALLEN BRADLEY 1203-GK5 DeviceNet Comm. Module (24VDC Powered)
ALLEN BRADLEY 1201HA2-OS 1201HA2OS
ALLEN BRADLEY 118450 118450
ALLEN BRADLEY 103620 103620
ALLEN BRADLEY 102877 102877
AB ALLEN-BRADLEY Bul.1333 Adjustable Frequency AC Drive (Cat# 1333-CAA Series B)
2711-K5A5 Ser F Rev D FRN 3.14 PanelView 550 Allen Bradley HMI Keypad RS232 QTY
2711-K5A5 Allen Bradley PanelView 550 HMI Keypad Terminal Ser F Rev L FRN 4.20
2015 Sealed Allen Bradley 1769-IF16V CompactLogix 1769-1F16V Voltage Input
1771-OA/B ALLEN BRADLEY PLC MODULES
1746-NO8V 1746-N08V Ser A FRN 1.00 SLC 500 Output Module Terminal Allen Bradley
140M-18R-D15-CX ALLEN BRADLEY CIRCUIT BREAKER,150 AMPS,3 POLES,600VAC
* 2014* Allen Bradley 1794-IRT8XT /B Flex I/O Input Module 1794-1RT8XT QTY
