描述
控制是指使系统的状态与行为产生所希望的变化而加给系统的作用。如果表达这个作用及系统状态,用的是逻辑量,则这个控制即为逻辑量控制。它是最常用控制,对它进行控制是PLC的优势,也是PLC最基本的应用。
逻辑量控制的目的是,根据逻辑量的当前的输入组合与历史的输入顺序,使PLC产生相应的逻辑量输出,以使系统能按一定顺序工作,所以,有时也称其为顺序控制。
PLC对系统的顺序控制有手动,半自动或自动。而采用的控制原则有分散、集中与混合三种。PLC的逻辑问题有位逻辑和字逻辑,这些问题又各有组合逻辑与时序逻辑两个类型。
另外,如果把PLC梯形图理解为电路,若按输入的确定性分,则有确定电路与随机电路两种。确定电路的工作顺序是确定的。而随机电路的工作顺序是有分支的,根据不同的输入,沿着不同的分支工作。
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主营:世界知名品牌的PLC、DCS系统备件模块
①Allen-Bradley(美国AB)系列产品》
②Schneider(施耐德电气)系列产品》
③General electric(通用电气)系列产品》
④Westinghouse(美国西屋)系列产品》
⑤SIEMENS(西门子系列产品)》
⑥销售ABB Robots.FANUC Robots、YASKAWA Robots、KUKA Robots、Mitsubishi Robots、OTC Robots、PanasonicRobots、MOTOMAN Robots。
⑦estinghouse(西屋):OVATION系统、WDPF系统、MAX1000系统备件。
⑧Invensys Foxboro(福克斯波罗):I/A Series系统,FBM(现场输入/输出模块)
顺序控制、梯形逻辑控制、事故追忆处理、数模转换、输入/输出信号处理、数
据通信及处理等。Invensys Triconex:冗余容错控制系统、基于三重模件冗余(TMR)
结构的zui现代化的容错控制器。
⑨Siemens(西门子):Siemens MOORE,Siemens Simatic C1,Siemens数控系统等。
⑩Bosch Rexroth(博世力士乐):Indramat,I/O模块,PLC控制器,驱动模块等。
◆Motorola(摩托罗拉):MVME 162、MVME 167、MVME1772、MVME177等系列。
REXROTH INDRAMAT CLC-D02.3-FW MODULE INPUT CARD
REXROTH INDRAMAT CLC-D02.3M-FW CONTROL CARD W/FIBER OPTIC
REXROTH INDRAMAT CLC-V02.3C-FW SERVO CONTROL VMEBUS CLC W/40 AXIS GPS FIRMWARE
REXROTH INDRAMAT CLM-01.2 CONTROL MODULE
REXROTH INDRAMAT CLM01.2-A CONTROL MODULE 2 AXIS MOK II
REXROTH INDRAMAT CLM01.2-A-E 2 AXIS CONTROLLER
REXROTH INDRAMAT CLM012E AXIS CONTROL
REXROTH INDRAMAT CLM01.3-X-0-2-0 CONTROLLER
REXROTH INDRAMAT CLM01.3-X-0-2-0-FW SERVO CONTROLLER
REXROTH INDRAMAT 266805 SERVO CONTROL
REXROTH INDRAMAT 267341 PC BOARD
REXROTH INDRAMAT 268887 CONTROL
REXROTH INDRAMAT 268889 CONTROL
REXROTH INDRAMAT 271426 ELEC COMPONENT
REXROTH INDRAMAT 271639 ENCODER
REXROTH INDRAMAT 276889 CONNECTOR
REXROTH INDRAMAT 276890 CONNECTOR
REXROTH INDRAMAT 277697 CABLE
REXROTH INDRAMAT 278760 FIRMWARE MOD
REXROTH INDRAMAT 278984 CABLE
REXROTH INDRAMAT 284830 SERVO MOTOR
REXROTH INDRAMAT 285402 CARD DISPLAY
REXROTH INDRAMAT 2AD160B-B35OB2-BS03-C2N1 MOTOR 460VAC 30KW 1.5-6K RPM
REXROTH INDRAMAT 2AD160CB350B1BS0 SERVO
REXROTH INDRAMAT 2G-1125-1R-B3-3302-H2 SERVO MOTOR
REXROTH INDRAMAT 308241 FIB OPTIC MOD
REXROTH INDRAMAT 308248 FIB OPTIC MOD
REXROTH INDRAMAT 31220901 ENCODER
REXROTH INDRAMAT 610085 CONNECTOR KIT/CABLE
REXROTH INDRAMAT 610110 CONNECTOR KIT/CABLE
REXROTH INDRAMAT 610121 CONNECTOR KIT/CABLE
REXROTH INDRAMAT 610123 CONNECTOR KIT/CABLE
REXROTH INDRAMAT A2D300AD0201 FAN ASSEMBLY 230/400V 280/270W 2650/2800RPM
REXROTH INDRAMAT AC-SERVO Item
REXROTH INDRAMAT APRB-02-02 INTERFACE SERCOS
REXROTH INDRAMAT APRB02-02-FW AXIS PROCESSOR MODULE
REXROTH INDRAMAT AS161/006-000 PROGRAMMING MODULE
REXROTH INDRAMAT BGRNTB02-00 PRINTED CIRCUIT CARD FOR MT-CNC02/03
REXROTH INDRAMAT BSM150GB120DN11 BLOCK
REXROTH INDRAMAT BTM03.1-BA-TA-TA-TA-TA-VA-2FF-FW OPERATOR INTERFACE/PUSHBUTTON STATION
REXROTH INDRAMAT BTM1.01/00 CONTROL PANEL WITH EMERGENCY STOP
REXROTH INDRAMAT BZM01.1-07 SERVO CONTROLLER ECODRIVE AC
REXROTH INDRAMAT BZM01.3-01-07 SERVO CONTROL
REXROTH INDRAMAT CCD01.1-KE00-01 RACK 4 SLOT
REXROTH INDRAMAT CCD01.1-KE02-01-FW MOTION CONTROLLER W/PLUG-IN FRAME WO/FIRMWARE
REXROTH INDRAMAT CCD01.1KE19-01FW SERVO DRIVE
REXROTH INDRAMAT CCD01.1-KE20-01-FW SERVO CONTROLLER
REXROTH INDRAMAT CLC-D02.2 PC BOARD
REXROTH INDRAMAT CLC-D02.2A-FW CARD SERIAL COMMUNICATION
REXROTH INDRAMAT CLC-D02.3 MODULE INPUT CARD
REXROTH INDRAMAT CLC-D02.3-FW MODULE INPUT CARD
REXROTH INDRAMAT CLC-D02.3M-FW CONTROL CARD W/FIBER OPTIC
REXROTH INDRAMAT CLC-V02.3C-FW SERVO CONTROL VMEBUS CLC W/40 AXIS GPS FIRMWARE
REXROTH INDRAMAT CLM-01.2 CONTROL MODULE
REXROTH INDRAMAT CLM01.2-A CONTROL MODULE 2 AXIS MOK II
REXROTH INDRAMAT CLM01.2-A-E 2 AXIS CONTROLLER
REXROTH INDRAMAT CLM012E AXIS CONTROL
REXROTH INDRAMAT CLM01.3-X-0-2-0 CONTROLLER
REXROTH INDRAMAT CLM01.3-X-0-2-0-FW SERVO CONTROLLER
REXROTH INDRAMAT DDS03.1-W/030-R SERVO DRIVE AC 30AMP RESOLVER FEEDBACK
REXROTH INDRAMAT DDS031W050D AC SERVO DRIVE
REXROTH INDRAMAT DDS2.1-A150-D SERVO CONTROLLER
REXROTH INDRAMAT DDS21A200D MODULE
REXROTH INDRAMAT DDS2.1-W/025-D SERVO CONTROL AC
REXROTH INDRAMAT DDS2.1-W/050-D SERVO CONTROL AC W/DDS-1 SERCOS ETHERNET IN SLOT1
REXROTH INDRAMAT DDS2.1-W/100-D SERVO DRIVE CONTROLLER AMPLIFIER
REXROTH INDRAMAT DDS2.1-W/150-D SERVO CONTROLLER AC
REXROTH INDRAMAT DDS2.1-W/200-D SERVO DRIVE 200AMP
REXROTH INDRAMAT DDS22W100BE1200 DRIVE
REXROTH INDRAMAT DDS3.1-W/030-D SERVO CONTROLLER
REXROTH INDRAMAT DDS3.1-W/030-R SERVO DRIVE AC 30AMP RESOLVER FEEDBACK
REXROTH INDRAMAT DEA04.1 I/O MODULE/INTERFACE FOR PLC 15INPUT 16OUTPUT
REXROTH INDRAMAT DEA04.2 PLUG IN I/O CARD
REXROTH INDRAMAT DEA28.1 I/O MODULE ISOLATED 32IN 24O