Dell Latitude PW380 CY640 HJVX1 PRO2X Docking Stations, Lot of 3
Dell Pro2X E-Port Plus II 35RXK E-Series Latitude Docking Station + Original AC
HP 455953-001 2700 Ultra-Slim Expansion Base Docking Station
IBM Lenovo Thinkpad Type 2504 42W4638 42W4639 Docking Station, Lot of 3
IBM Thinkpad Type 2504 42W4632 42W4633 R60 R61 T60 T61 Z60 Mini Docks, Lot of 2
First Mobile Technologies E6400/ATG FM-CP-ATG-E FirstCradlePlus Docking Station
First Mobile Technologies E6400/ATG FM-CP-ATG-E Docking Station FirstCradlePlus
Panasonic Toughbook CF-28 Hard Drive Caddy DFMD2133 COMPLETE
Kensington M01065 Universal Notebook Docking Station With Extras
PLC采用循环扫描的工作方式，在PLC中用户程序按先后顺序存放，CPU从第一条指令开始执行程序，直到遇到结束符后又返回第一条，如此周而复始不断循环。PLC的扫描过程分为内部处理、通信操作、程序输入处理、程序执行、程序输出几个阶段。全过程扫描一次所需的时间称为扫描周期。当PLC处于停状态时，只进行内部处理和通信操作服务等内容。在PLC处于运行状态时，从内部处理、通信操作、程序输入、程序执行、程序输出，一直循环扫描工作。
HP 497652-001 USB 2.0 Docking Station For Elite Books & NoteBooks 500476-001
HP EliteBook ProBook Docking Station VB041AA 575324-001 581597-001
IBM DVD-CDRW Multi Player Drive T20 T21 T23 T30 A30 R30 08K9868, Lot of 2!
IBM Lenovo 39T2677 Thinkpad T60 T60p T61 T61p DVDRW Drive UJ-842, Lot of 25!
Apple MacBook Pro 8,2 MC721LL/A 2.0 GHz I7-2635QM 500GB HDD 15.5" 8GB RAM OS X
Apple MacBook Pro 8,2 MC721LL/A 2.0 GHz I7-2635QM 500GB HDD 15.5" 16GB RAM OS X
Apple MacBook Pro 8,2 MC721LL/A 2.0 GHz I7-2635QM 16GB RAM 500GB HDD 15.5" OS X
Apple MacBook Pro 8,2 MC721LL/A 2.0 GHz I7-2635QM 500GB HDD 8GB RAM 15.5" OS X
Apple MacBook Pro 8,2 MC721LL/A 2.0 GHz I7-2635QM 4GB RAM 1TB HDD 15.5" OS X
Apple MacBook Pro 8,2 MC721LL/A 2.0 GHz I7-2635QM 500GB 4GB RAM OS X 15.4"
Apple MacBook Pro 8,2 MC721LL/A 2.0 GHz I7-2635QM 4GB RAM 500GB 15.4" OS X
HP EliteBook 8560P Core i7 vPro 2620M 2.7GHz 8GB DDR3 1TB HD DVDRW Webcam Win 7
Lenovo X201 Tablet PC i7 vPro L640 2.13GHz 4GB 250GB HDD Webcam + Win 7 Pro
Lenovo X201 Tablet PC i7 vPro L620 2.00GHz 4GB 320GB Webcam + Win 7 CoA
Lenovo X201 Tablet PC i7 vPro L620 2.00GHz 4GB 160GB Webcam + Dock & Win 7 Pro
Lenovo X201 Tablet PC i7 vPro L620 2.00GHz 4GB 160GB Webcam + Win 7 Pro
Lenovo X201 Tablet PC i7 vPro L620 2.00GHz 4GB 256GB Webcam + Dock & Win 7 Pro
IBM Lenovo Thinkpad E430 I5-2450M 3RD GEN 2.5 GHz 14" 500GB HDD 4GB RAM WIN7 PRO
Itronix General Dynamics GoBook VR-2 IX605 Semi-Rugged Notebook
Itronix General Dynamics GD6000 2.53 GHz Core 2 Duo Rugged Notebook
Itronix General Dynamics GD6000 2.53 GHz Core 2 Duo Rugged Notebook PARTS
Itronix General Dynamics GD6000 2.53 GHz Core 2 Duo 2GB Rugged Notebook PARTS
Itronix General Dynamics GD6000 2.53 GHz Core 2 Duo 2GB RAM Rugged Notebook
Itronix General Dynamics GD6000 2.53 GHz Core 2 Duo 2GB Rugged Notebook
Itronix General Dynamics GoBook VR-2 IX605 Semi-Rugged Notebook
Itronix General Dynamics GD6000 2.53 GHz Core 2 Duo Rugged Notebook
Itronix General Dynamics GD6000 2.53 GHz Core 2 Duo Rugged Notebook PARTS
Itronix General Dynamics GD6000 2.53 GHz Core 2 Duo 2GB Rugged Notebook PARTS
Itronix General Dynamics GD6000 2.53 GHz Core 2 Duo 2GB RAM Rugged Notebook
Itronix General Dynamics GD6000 2.53 GHz Core 2 Duo 2GB Rugged Notebook