IC693MDL632

IC693MDL632

IC693MDL632

CPU主要由运算器、控制器、寄存器及实现它们之间联系的数据、控制及状态总线构成,CPU单元还包括外围芯片、总线接口及有关电路。内存主要用于存储程序及数据,是PLC不可缺少的组成单元。

在使用者看来,不必要详细分析CPU的内部电路,但对各部分的工作机制还是应有足够的理解。CPU的控制器控制CPU工作,由它读取指令、解释指令及执行令。但工作节奏由震荡信号控制。运算器用于进行数字或逻辑运算,在控制器指挥下工作。寄存器参与运算,并存储运算的中间结果,它也是在控制器指挥下工作。


CPU速度和内存容量是PLC的重要参数,它们决定着PLC的工作速度,IO数量及软件容量等,因此限制着控制规模。

I/O模块

PLC与电气回路的接口,是通过输入输出部分(I/O)完成的。I/O模块集成了PLC的I/O电路,其输入暂存器反映输入信号状态,输出点反映输出锁存器状态。输入模块将电信号变换成数字信号进入PLC系统,输出模块相反。I/O分为开关量输入(DI),开关量输出(DO),模拟量输入(AI),模拟量输出(AO)等模块。

常用的I/O分类如下:

开关量:按电压水平分,有220VAC、110VAC、24VDC,按隔离方式分,有继电器隔离和晶体管隔离。

模拟量:按信号类型分,有电流型(4-20mA,0-20mA)、电压型(0-10V,0-5V,-10-10V)等,按精度分,有12bit,14bit,16bit等。

除了上述通用IO外,还有特殊IO模块,如热电阻、热电偶、脉冲等模块。

按I/O点数确定模块规格及数量,I/O模块可多可少,但其最大数受CPU所能管理的基本配置的能力,即受最大的底板或机架槽数限制。


电源模块

PLC电源用于为PLC各模块的集成电路提供工作电源。同时,有的还为输入电路提供24V的工作电源。电源输入类型有:交流电源(220VAC或110VAC),直流电源(常用的为24VDC)。

底板或机架

大多数模块式PLC使用底板或机架,其作用是:电气上,实现各模块间的联系,使CPU能访问底板上的所有模块,机械上,实现各模块间的连接,使各模块构成一个整体。

Indramat Rexroth MKD025B-144-KG1-KN Magnet Motor

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Rexroth Press Comp Piston Pump Variable Volume 13 GPM

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REXROTH INDRAMAT VT5007-17 BOARD NEW VT500717

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Indramat Rexroth Input/Output Module DEA4.1 dea04.1 new

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MANNESMANN REXROTH VT11076-21 NSPP VT1107621

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REXROTH PUMP SERVO VALVE, 01-45-2097-1

REXROTH VT 5008 PROP AMPLIFIER NEW

REXROTH H160CA-63X28-MT4-N-PU-PU-4-G-365-S-A-33-RF1 NSP

REXROTH VT5035-1X/SO43A-1631 NSFP VT50351XSO43A163

Rexroth Pow Supply # 0 608 830 206 / SB301 0608830206

Rexroth Handheld Remote Unit P/N 3622501000

NEW REXROTH DBEM 10-51/315YG24K4M VALVE MNR: R900547401

REXROTH R911295613 BOARD NEW R911295613

REXROTH BOSCH TERMINAL VALVE SYSTEM HF 03 02 low price

Bosch Rexroth Indramat Power Line Filter NFE02.1-230

Indramat Rexroth DEA4.1 Input/Output Module dea04.1

Bosch Rexroth Directional Control Valve 9810232070 321

Rexroth Hydraulic Directional Valve

NEW Rexroth Indracontrol L40 CML40.1-NP-220-NA-NNNN-NW

Rexroth Amplifier Card DPR-10 Rebuilt

REXROTH LINEAR ACTUATOR No. R036050000 (592 mm) NEW

R902087015 THROUGH DRIVE ASSEMBLY K04 BOSCH REXROTH

Rexroth HLB01.1C-01K0-N06R0 A-007-NNNN

REXROTH 1070084618-304 USPP 1070084618304

NEW REXROTH 0-608-701-017 ELECTRIC DRIVE 0608701017

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MANNESMANN REXROTH VT11076-21 USPP VT1107621

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Siemens RexRoth Motor Pump Combo 1LA5090-4AA91 _E9F58

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REXROTH R900758430 HYDRAULIC VALVE NEW!!!

REXROTH IndraControl VCP-20.1BUN.768PB-NN-PW

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Rexroth VT5006-17b Servo Amplifier Card ! NEW !

Mannesmann Rexroth Servo Controller Card VT5006-17 !NEW

Ford Tractor Hydraulic Valve AG4755-0-1-31 by Rexroth

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REXROTH 0-608-750-056 USPP 0608750056

ME5-HH-C REXROTH PC-C-186014

MP1-HH-C REXROTH PC-C-182255

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MANNESMANN REXROTH VT5006S12-R5 USPP VT5006S12R5

MANNESMANN REXROTH VT5007-17 USPP VT500717

REXROTH 1-827-030-149 USPP 1827030149

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Rexroth Indramat MHD 90 Motor With Encoder

REXROTH INDRAMAT 109-0942-4B45-02 BOARD NEW

REXROTH INDRAMAT 109-0785-3B17-09 BOARD NEW

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REXROTH DRIVE PPC-R02.2 PPC-R02.2N-N-Q1-P2-N

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Indramat/Rexroth servo motor MKD071B-061-GPO-KN -Weeke

Rexroth Amplifier Card VT 5007 S16 R5 VT5007 new

Rexroth Indramat DSS1.3 DSS01 Module Card new

Rexroth Indramat DSS03 DKC2.1 DKC Card new

REXROTH H2-FM CONTROLAIR PNEUMATIC MARINE CONTROL VALVE

Rexroth Bosch Proportional Amplifier Card VT5011 VT new

Rexroth Valve Flow Control FE 25 C21/315LN9M #2717

Rexroth Valve Flow Control FE 25 C 10/LM #2718

Rexroth Valve Flow Control FE 25 C 10/LM #2721

Rexroth Valve Flow Control FE 25 C 11/LM #2722

Rexroth Valve Flow Control FE 40 C 10/LM #2723

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BOSCH REXROTH HANDHELD PROGRAMMER TT1NEL20KLR2-1

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NEW! Rexroth Servo Amplifier Card VT3014S38 w/6M Warr.

Rexroth Proportion Pressure Relief Valve ACA-0581-0-C-1

REXROTH 4WRE-6W08-12/24K4/M VALVE 4WRE6W081224K4M

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REXROTH PRECISION ROLLED BALL SCREW,P/N: R151264013

REXROTH PRECISION ROLLED BALL SCREW P/N: R150244085

REXROTH LINEAR BEARING CARTRIDGES, P/N: R165171420

REXROTH R480052562 NSFP R480052562

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REXROTH VT5005S11 USPP VT5005S11

Rexroth Hydraulic Press Comp Piston Pump # AA10VS028DRG

NEW REXROTH RMG12.2-NN INTERBUS