热门搜索:
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。
虽然划分为以上几个部分,但PLC中的芯片实际上就是微处理器,由于电路的高度集成,对内部的详细分析已无必要,我们只要弄清它在PLC中的功能与能,能正确地使用它就够了。
模块的外部表现就是它的工作状态的种种显示、种种接口及设定或控制开关。一般讲,模块总要有相应的状态指示灯,如电源显示、运行显示、故障显示等。箱体式PLC的主箱体也有这些显示。它的总线接口,用于接I/O模板或底板,有内存接口,用于安装内存,有外设口,用于接外部设备,有的还有通讯口,用于进行通讯。模块上还有许多设定开关,用以对PLC作设定,如设定起始工作方式、内存区等。
二、I/O模块:
PLC的对外功能,主要是通过各种I/O接口模块与外界联系的,按I/O点数确定模块规格及数量,I/O模块可多可少,但其大数受所能管理的基本配置的能力,即受大的底板或机架槽数限制。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。
三、电源模块:
有些PLC中的电源,是与模块合二为一的,有些是分开的,其主要用途是为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。电源以其输入类型有:交流电源,加的为交流220VAC或110VAC,直流电源,加的为直流电压,常用的为24V。
四、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。
ABB DSQC236A YB560103-CA8 SERVO ROBOT YB560103CA /7
ABB YB 560 103 BD/4 I/O BOARD DSQC 223 YB560103BD4
ABB YB 560 103 BD/3 I/O BOARD DSQC 223 YB560103BD3
ABB DSQC 266G 3HAB8801-1/2B ROBOT CONTROL BOARD NEW
ABB DSQC-249B SERVO AMPLIFIER, tested, warranty
ABB DSQC-249B SERVO AMPLIFIER, tested, warranty
ABB DSQC-236T AXIS CONTROLLER BOARD, tested, warranty
ABB DSQC-236T AXIS CONTROLLER BOARD, tested, warranty
New ABB Memory Board DSQC 317 #28968
ABB DSQC-236G MODULE YB560103-CD/24
NEW ABB DSQC 266G 3HAB8801-1/2B ROBOT CONTROL BOARD
ABB DSQC 324 16MB Memory Board 3HAB 5957-1/3
ABB DSQC 249B/3HAA3563-AHA/1 SERVO AMPLIFIER ***XLNT***
ABB 3HAB 2213-1/2 DSQC 313 Module DSQC Serial Measure
ABB YB-560-103-BE/2 DSQC 224
New ABB System Board 3HAB2211-1 DSQC256A #29408
ABB DSQC 3HAA3563-AGA/2 Rectifier Module
ABB 3HAB2215-1 BOARD DSQC-314A 3HAB22151
ABB #DSQC-328-3HAB-7229-1 P/C I/O Board (N) 7/3
ABB YB560103 BE/2 DSQC 224 PCB NEW / 1 YEAR WARRANTY
ABB YB-560-103-BE/2 DSQC 224 PC BOARD
ABB 3HAA-3563 ALA/2 DSQC 252 PC BOARD
ABB DSQC 315 3HAB-2214-1/2 BOARD 3HAB221412
ABB 3HAB 2214-1/1 DSQC 315 Module Combination I/O
One-day shipping available
ABB 3HAB 2214-1/2 DSQC 315 Module Combination I/O
One-day shipping available
ABB 3HAB2211-1-1 BOARD DSQC-256A 3HAB221111
ABB 3HAB2211-1-1 BOARD DSQC-256A 3HAB221111
ABB DSQC-236G YB560103-CD/22 DRIVE BOARD DSQC236G
Expedited shipping available
ABB, ABB Robot, DSQC 328, 3HAB 7229-1, S4C, S4C+
One-day shipping available
ABB Robotics Axis Board DSQC236T YB560103-CE/23
ABB MODEL DSQC129 YB161102-/1 CONVERTER CARD NEW
ABB Drive Controller Board DSQC 236T ! WOW !
ABB DSQC 236G YB560103-CD/22 AXIS DRIVE BOARD
ABB DSQC 236G YB560103-CD/24 AXIS DRIVE BOARD
ABB DSQC 236G YB560103-CD/22 AXIS DRIVE BOARD
ABB DSQC 236T YB560103-CE/23 AXIS DRIVE BOARD
ABB DSQC 236T YB560103-CE/23 AXIS DRIVE BOARD
REPAIRED ABB 3HAB8101-8/08D CONTROLLER DSQC346G
ABB 3HAB8101-8/08Z Servo Drive Module DSQC-346G (UVG)
ASEA Brown Boveri, ABB DSQC 123B with DSQC 130
ABB ASEA BROWN BOVERI DSQC-230, tested warranty
ABB DSQC 249B Capacitor Board; P/N: 3HAA3563-4HA/2
ABB Servo Power Unit 3HAB 8801-1 DSQC266G NIB SWEDEN
ABB SVC401A DSQC 239 2668 165-14/3 I/O Board USED
One-day shipping available
ABB Robotics Factory Refurbished Module DSQC-315