工控PLC1747-L511
可编程序控制器,英文称Programmable Controller,简称PC。但由于PC容易和个人计算机(Personal Computer)混淆,故人们仍惯地用PLC作为可编程序控制器的缩写。它是一个以微处理器为核心的数字运算操作的电子系统装置,专为在工业现场应用而设计,它采用可编程序的存储器,用以在其内部存储执行逻辑运算、顺序控制、定时/计数和算术运算等操作指令,并通过数字式或模拟式的输入、输出接口,控制各种类型的机械或生产过程。PLC是微机技术与传统的继电接触控制技术相结合的产物,它克服了继电接触控制系统中的机械触点的接线复杂、可靠性低、功耗高、通用性和灵活性差的缺点,充分利用了微处理器的优点,又照顾到现场电气操作维修人员的技能与惯,特别是PLC的程序编制,不需要专门的计算机编程语言知识,而是采用了一套以继电器梯形图为基础的简单指令形式,使用户程序编制形象、直观、方便易学;调试与查错也都很方便。用户在购到所需的PLC后,只需按说明书的提示,做少量的接线和简易的用户程序编制工作,就可灵活方便地将PLC应用于生产实践。
可编程序控制器一直在发展中,所以至今尚未对其下*的定义。国际电工学会(IEC)曾先后于1982.11;1985.1和1987.2发布了可编程序控制器标准草案的*,二,三稿。
在第三稿中,对PLC作了如下定义:可编程序控制器是一种数字运算操作电子系统,专为在工业环境下应用而设计。它采用了可编程序的存储器,用来在其内部存储执行逻辑运算、顺序控制、定时、计数和算术运算等操作的指令,并通过数字的,模拟的输入和输出,控制各种类型的机械或生产过程。可编程序控制器及其有关的外围设备,都应按易于与工业控制系统形成一个整体、易于扩充其功能的原则设计。
VMIC VMIVME-5576-000 VMIVME5576000 BOARD
VMIVME model 5530S Fiber Optic Slave Lam 810-077433-002
VMI VMIVME 7487A MAINFRAME BOARD
GE FANUC VMIVME-1182 VMIVME 1182 VMIC VMEBUS VMIVME1182
VMIC VMIVME7452 NSPP VMIVME7452
VMIVME 7487A CPU BD. Opal 7
GE Fanuc / VMIC VMIVME 7751 SINGLE BOARD VME COMPUTER
VMIVME 3111 VMIC
GE VMIC VMIVME 7648-740 1.26GHz 128MB SBC lot of 10ea
INTERFACE VMIVME MODELE 5530S 332-000132-C LEGEND E
INTERFACE VMIVME MODELE 5530S 332-000132-C LEGEND D
VMIC VME Board VMIVME Model 2128 3 Month Warranty!
128-Bit High Voltage Digital Input with built in test
GE FANUC/ VMIC VME VMIVME 3230 8CHNL THERMOCOUPLE BOARD
GE Fanuc VMIC VMIVME 6016 VME BOARD
USED VMIC VMIVME-7698-146 Celeron Socket Computer Board
Expedited shipping available
MOTOROLA VMI-VME-4514 USPP VMIVME4514
MOTOROLA VMI-VME-4514A USPP VMIVME4514A
VMIC VME Board VMIVME Model 1128 3 Month Warranty!
128-Bit High Voltage Digital Input Board L@@K! $500
VMIC # VMIVME-7592-940 PROCESSOR BOARD
One-day shipping available
USED VMIC VMIVME-M-485 VMEbus Repeater Link M 485
Expedited shipping available
MOTOROLA VMI-VME-2534 USPP VMIVME2534
VMIC VMIVME-5550 USPP VMIVME5550
VMIC VMIVME-3123-121 VME 16 Channel Analog Input Board
One-day shipping available
VMIC VMIVME-0427-140 VMEbus Module Board
VMIC VMIVME 1150 VMIVME-1150
VMIVME-0427-140 VMEbus Module Board
GE VMIC VMIVME 7648-540 933 Mhz 128MB SBC lot of 4ea
VMIC VMIVME-5599 NSPP VMIVME5599
VMIC VMIVME-5521 USPP VMIVME5521
VMIC VMIVME-2511 SINGLE BOARD VMEbus (NEW IN BOX)
Expedited shipping available
Enlarge
VME Microsystems VMIVME-1181 Instruction Manual
VME MICROSYSTEMS VMIVME-3112 INSTRUCTION MANUAL
VMIC VMIVME 1160A MODULE
VMIC VMIVME 1160A MODULE
VMIC VMEBUS VMIVME 3413 BOARD
VMIC VMIVME 2232 MODULE
VMIC VMIVME 1160A MODULE
VMIC VMIVME 2232 MODULE
VMIC VMEBUS VMIVME 1160A MODULE
VMIC VMEBUS VMIVME 1160A MODULE
VMIC VMEBUS VMIVME 2232 MODULE
VMIC VMEBUS VMIVME 2232 MODULE
VMIC VMIVME5588 VMIVME DMA High-Speed Reflective MVME
GE Fanuc VMIVME-5576-000/VMIVME-5576/VMIVME5576/5576
One-day shipping available
VMIC VMIVME-5530S Fiber Optic Slave VMI VMEbus VME5530S
One-day shipping available
VMIC GE Fanuc VMIVME-3114 VMIVME3114 Analog I/O Board
One-day shipping available
VMIC / GE Fanuc VMIVME-REPEAT L-485 Long-Line VMEbus
One-day shipping available
VMIC VMIVME-6015 5-CH Multifunction Input/Output Board
One-day shipping available
VMIC VMIVME-7592 Single-Slot Pentium / AMD-K6 Processor
One-day shipping available
VMIC VMIVME-7589 VMIVME7589 VMEbus VME MAINFRAME
One-day shipping available
VMIC CPU Board VMIVME3112 #10600-01
VMIC VMIVME-3115 12-Bit High-Throughput Analog Input
One-day shipping available
GE Fanuc VMIC VMIVME-7486 PC/AT VMEbus CPU ___H156
VMIC GE Fanuc VMIVME-3115 VMIVME3115 12-Bit VME Module
One-day shipping available
VMIC VMIVME-3123 16-BIT High Throughput Analog Input Bd
One-day shipping available
VMIC VMIVME Model 5530S PCB 333-000132-C Working
VMIC / GE Fanuc VMIVME-2232-100 32-Channel Relay Output
One-day shipping available
GE-Fanuc VMIVME 7664 PCB 332-007664-545 A Working
VMIC VMIVME-2511 VMEbus PROCESSOR MAINFRAME BOARD
One-day shipping available
GE VMIVME-7651 Single Board Computer & I/O Board
One-day shipping available
GE Fanuc VMIC-4120 VMIVME Analog Out 16 Channel VMEbus
VMIC VMIVME-1150 64-Bit Optical Couple Digital Input Bd
One-day shipping available
VMIC VMIVME-2232 32-CH RELAY OUTPUT VME BOARD
One-day shipping available
VMIC VMIVME-5010 8-CHANNEL VMEBUS GLOBAL INTERRUPT DSUB