MVME714连州县
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。


五、PLC的外部设备


外部设备是PLC系统不可分割的一部分，它有四大类


1.编程设备：有简易编程器和智能图形编程器，用于编程、对系统作一些设定、PLC及PLC所控制的系统的工作状况。编程器是PLC开发应用、监测运行、检查维护不可缺少的器件，但它不直接参与现场控制运行。


2.设备：有数据和图形。直接监视数据或通过画面监视数据。

10 PCS SST25VF016B-75-4I-S2AF SOP-8 SST25VF016 SST 25VF016 SPI Serial Flash
10 PCS SST25VF016B-75-4I-S2AF SOP-8 SST25VF016 SST 25VF016 SPI Serial Flash
10 PCS SST25VF016B-75-4I-S2AF SST25VF016 16 Mbit Flash
10 PCS SST25VF032B-80-4I-S2AF SOP-8 SST25VF032 25VF032 32 Mbit SPI Serial Flash
10 PCS SST25VF032B-80-4I-S2AF SOP-8 SST25VF032 25VF032 32 Mbit SPI Serial Flash
10 PCS SST25VF032B-80-4I-S2AF SOP-8 SST25VF032 25VF032 32Mbit SPI Serial Flash
10 PCS SST25VF080B-50-4C-S2AF SOP-8 SST25VF080 25VF080 SPI Serial Flash          
10 PCS SST39VF040-70-4C-NHE 4M (512Kx8) 70ns 2.7-3.6V FLASH MEMORY SST          
10 PCS SST39VF800A-70-4C-EKE SST39VF800A SST TSOP-48          
10 Pks Dental OCMEGA K-FILE Hand Use Endo Root Canal SSt Files Endo 06# 25mm AS
10 Pks Dental OCMEGA K-FILE Hand Use Endo Root Canal SSt Files Endo 08# 25mm AS
10 Pks Dental OCMEGA K-FILE Hand Use Endo Root Canal SSt Files Endo 10# 25mm AS
10 Pks Dental OCMEGA K-FILE Hand Use Endo Root Canal SSt Files Endo 15# 25mm AS
10 Pks Dental OCMEGA K-FILE Hand Use Endo Root Canal SSt Files Endo 20# 25mm AS
10 SET SST27SF512-70-3C-PGE SST 27SF512 plus DIP sockets (A108)
10 x           SST25VF016B-75-4I-S2AF SST25VF016 SST 25VF016 SPI Serial Flash SOP-8
100 BD Vacutainer 7.5mL SST Blood Collection Tubes GEO#4153
100 BD VACUTAINER 8.5ML SST TUBES REF. NO. 367988 Exp. 08/2015 Short Date Sale
100 BD VACUTAINER 8.5ML SST TUBES REF. NO. 367988 Exp. 08/2015 Short Date Sale
100 Silver Plated SHCS Machine Screws 3/8" 16 x 1-1/8" L SST SKTHD 5/16"
100 Stainless Steel 10-24 J Nut Cage Captive Clip On Speed Nut T-1024 292-318 SS
100 Stainless Steel 10-24 J Nut Cage Captive Clip On Speed Nut T-1024 292-318 SS
10P x 49LF008A-33-4C-NHE SST Encapsulation PLCC-32 8 Mbit AR1
10Packs Dental Finger Spreader Files B 25MM Dentsply Super SST Tapered Maillefer
10pc SST 27SF512-70-3C-PG 27SF512-70-3C-PGE SST 27SF512 DIP-28 IC (A108)
10pcs IC SST27SF512 IC DIP-28 512 Kbit Many-Time Programmable Flash SST27
10pcs IC SST27SF512 IC DIP-28 512 Kbit Many-Time Programmable Flash SST27
10pcs IC SST39SF010A-70-4C-NH Multi-Purpose Flash SST39SF010
10pcs IC SST39SF020A IC SST 39SF020 DIP-32
10pcs           SST25VF016B-75-4I-S2AF SST25VF016 SST 25VF016 SPI Serial Flash SOP-8
10PCs           SST25VF080B SST 25VF080B Flash
10PCS Programmable Flash IC PLCC-32 SST27SF512-70-3C-NH 27SF512-70-3C-NH 27SF512
10pcs SST 27SF512-70-3C-PG SST27SF512-70-3C-PG SST27SF512-70-3C-PGE DIP28 IC
10pcs SST SST37VF512-70-3C-NHE Many-Time Programmable Flash SST37VF512
10pcs SST25VF080B SST 25VF080B IC Chip Flash
10PCS SST25VF080B-50-4C-S2 Encapsulation:SOP-8,8 Mbit SPI Serial Flash
10PCS SST27SF020-70-3C-NHE Many-Time Programmable Flash
10PCS SST27SF020-70-3C-NHE Many-Time Programmable Flash
10PCS SST27SF020-70-3C-NHE Many-Time Programmable Flash #A622 LW
10PCS SST27SF020-70-3C-NHE Many-Time Programmable Flash #A622 LW
10pcs SST27SF256-70-3C-PG SST 27SF256-70-3C-PG EEPROM DIP
10PCS SST27SF256-70-3C-PG Encapsulation:DIP,256 Kbit / 512 Kbit / 1
10pcs SST27SF256-70-3C-PG SST 27SF256 DIP-28
10pcs SST27SF256-70-3C-PG SST 27SF256 EEPROMs DIP-28
10pcs SST27SF256-70-3C-PG SST 27SF256 EEPROMs DIP-28
10pcs SST27SF256-70-3C-PG SST 27SF256 plus DIP sockets
10pcs SST27SF256-70-3C-PG SST 27SF256 plus DIP sockets
10pcs SST27SF512-70-3C-PG SST 27SF512 EEPROMs DIP-28
10pcs SST27SF512-70-3C-PG SST 27SF512 EEPROMs DIP-28
10pcs SST27SF512-70-?3C-PGE SST 27SF512 DIP-28
10pcs SST27SF512-70-3C-NH 27SF512 Many-Time Programmable Flash EEPROM PLCC32 SST
10PCS SST27SF512-70-3C-PG Encapsulation:DIP,256 Kbit / 512 Kbit / 1
10pcs SST27SF512-70-3C-PG SST 27SF512 EEPROM DIP-28
10pcs SST27SF512-70-3C-PG SST 27SF512 EEPROMs DIP-28
10pcs SST27SF512-70-3C-PG SST 27SF512 plus DIP sockets
10pcs SST27SF512-70-3C-PG SST 27SF512 plus DIP sockets
10PCS SST27SF512-70-3C-PGE Encapsulation:DIP-28,512 Kbit / 1 Mbit / 2 Mbit
10Pcs SST29EE010-70-4C-PHE SST29EE010 IC DIP-32
10PCS SST29EE010-90-4C-NH Encapsulation:PLCC,1 Mbit 128K x8 Page-Mode EEPROM
10PCS SST29EE010-90-4C-PH Encapsulation:DIP,
10PCS SST29EE020-120-4C-NH 5V 2M NOR FLASH SST29EE020 PLCC32 SST
10Pcs SST29EE020-120-4C-PH SST29EE020 IC DIP-32
10Pcs SST310-T1 SOT-23 IC          (MB8)
10pcs SST39SF010A SST SST39SF010 IC           CMOS Multi-Purpose Flash (MPF)
10PCS SST39SF020A-70-4C-NH Encapsulation:PLCC-32,1 Mbit / 2 Mbit / 4 Mbit
10PCS SST39SF040-70-4C-NH Encapsulation:PLCC-32,1 Mbit / 2 Mbit / 4 Mbit (x8)
10PCS SST39SF040-70-4C-PH Encapsulation:DIP-32,1 Mbit / 2 Mbit / 4 Mbit
10W 16mm SST-50 1300LM 3.4V-3.7V 6500K Luminus White LED Light for Bulb Torch
10W 16mm White 6500K High Power LED Chip Light 1300LM SST-50 3.4-3.7V 3A-5A
10W 20mm Luminus PhlatLight SST-50 Bright White LED 6500K Light for Bulb Lamp
10W 20mm SST-50 3000k Luminus PhlatLight Led Light Lamp + DC3V~18V 7A LED Driver
10W 20mm SST-50 White Luminus PhlatLight Led Light Lamp + DC3V~18V 3A LED Driver
10W 20mm SST-50 White Luminus PhlatLight Led Light Lamp + DC3V~18V 3A LED Driver
10W 20mm SST-50 White Luminus PhlatLight Led Light Lamp + DC3V~18V 3A LED Driver
10W 20mm SST-50 White Luminus PhlatLight Led Light Lamp + DC3V~18V 3A LED Driver
10W 20mm SST-50 White Luminus PhlatLight Led Light Lamp + DC3V~18V 7A LED Driver
10w Cree Luminus PhlatLight SST-50 White 4500k LED Emitter mounted on 20mm Star
10w Cree Luminus PhlatLight SST-50 White Color LED Emitter mounted on 20mm Star
10W SST-50 LED Driver DC3.7-4.2V /DC3V-18V 5A For SST-50 LED Light 5 Modes
10W SST-50 White Cree 16mm Board LED Light Lamp 1300LM for LED Torch/Flash Light