MVME714連州縣
PLC的對(duì)外功能，主要是通過各種I/O接口模塊與外界聯(lián)系的，按I/O點(diǎn)數(shù)確定模塊規(guī)格及數(shù)量，I/O模塊可多可少，但其大數(shù)受所能管理的基本配置的能力，即受大的底板或機(jī)架槽數(shù)限制。I/O模塊集成了PLC的I/O電路，其輸入暫存器反映輸入信號(hào)狀態(tài)，輸出點(diǎn)反映輸出鎖存器狀態(tài)。
三、電源模塊：
有些PLC中的電源，是與模塊合二為一的，有些是分開的，其主要用途是為PLC各模塊的集成電路提供工作電源。同時(shí)，有的還為輸入電路提供24V的工作電源。電源以其輸入類型有：交流電源，加的為交流220VAC或110VAC，直流電源，加的為直流電壓，常用的為24V。
四、底板或機(jī)架：
大多數(shù)模塊式PLC使用底板或機(jī)架，其作用是：電氣上，實(shí)現(xiàn)各模塊間的聯(lián)系，使能訪問底板上的所有模塊，機(jī)械上，實(shí)現(xiàn)各模塊間的連接，使各模塊構(gòu)成一個(gè)整體。
五、PLC的外部設(shè)備
外部設(shè)備是PLC系統(tǒng)不可分割的一部分，它有四大類
1.編程設(shè)備：有簡(jiǎn)易編程器和智能圖形編程器，用于編程、對(duì)系統(tǒng)作一些設(shè)定、PLC及PLC所控制的系統(tǒng)的工作狀況。編程器是PLC開發(fā)應(yīng)用、監(jiān)測(cè)運(yùn)行、檢查維護(hù)不可缺少的器件，但它不直接參與現(xiàn)場(chǎng)控制運(yùn)行。
2.設(shè)備：有數(shù)據(jù)和圖形。直接監(jiān)視數(shù)據(jù)或通過畫面監(jiān)視數(shù)據(jù)。
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
