1756-PB75/B
1756-PB75/B
1756-PB75/B
（1）中央处理单元CPU
PLC的CPU与通用微机的CPU一样，是PLC的核心部分，它按PLC中系统程序赋予的功能，接收并存储从编程器键入的用户程序和数据；用扫描方式查询现场输入装置的各种信号状态或数据，并存入输入过程状态寄存器或数据寄存器中；诊断电源及PLC内部电路工作状态和编程过程中的语法错误等；在PLC进入运行状态后，从存储器逐条读取用户程序，经过命令解释后，按指令规定的任务产生相应的控制信号，去启闭有关的控制电路；分时、分渠道地去执行数据的存取、传送、组合、比较和变换等动作，完成用户程序中规定的逻辑运算或算术运算等任务；根据运算结果，更新有关标志位的状态和输出状态寄存器的内容，再由输出状态寄存器的位状态或数据寄存器的有关内容实现输出控制、制表打印、数据通信等功能。以上这些都是在CPU的控制下完成的。PLC常用的CPU主要采用通用微处理器、单片机或双极型位片式微处理器。
【】 【诚信】 【创新】 【合作】 【共赢】
NETAPP X287A-R5 6-Pack 300GB 15K SAS Disk Drives
One-day shipping available
NETAPP X287A-6PK-R5 Disk Drives,6Pack,300GB,15k,SAS,R5
One-day shipping available
NETAPP X287A-R5 6-Pack 300GB 15K SAS Disk Drives
One-day shipping available
NetApp FAS3020c Network Appliance Filer Head 2.8GHz
NetApp X500 DS14 FC-AL Disk Shelf Base with (2) PS
NetApp X550 DS14mk2 FC-AL Disk Shelf Base 2 PS
NETAPP FAS3020 Filer Head 2x DC Power Supply FAS 3020 *
1 Year Warranty! Ask about Disk Shelves! WE BUY SURPLUS
NetApp F630 Filer Head Unit
5 Year Next Business Day Warranty on All NetApp
NetApp F810 Filer Head Unit
NetApp 14 x 300gb DS14 MK2 Shelf - X276, X276A disks
NetApp 14 x 500gb MK2 AT Disk Shelf - X267, X267A disks
Qty 20 NETAPP 300GB 10K X276A FC for DS14MK2 DS14MK4
$160 per drive!!! 1 Year Warranty!!! Full shelves avail
One-day shipping available
Qty 1 NetApp DS14MK2-AT DSX-7.0TB-R5-C 500GB SATA 7TB
Includes 1-Year Warranty
Enlarge
NetApp X1131A-R6 HBA 2-Port 8Gb PCIe FCP Target Card
NetApp X410A-R5 300GB 15k R5 SAS Hard Drive
NetApp X268A-R5 750GB 7200 Disk for DS14 MK2 AT - NEW
NetApp X289A-R5 450GB 15k SAS Internal Hard Drive
NetApp 2TB DS14 mk2 w/ 14 X275 A 144GB 15K RPM HDD ESH2
NetApp FAS250 Network Appliance Filer W/ 2TB 14 x X274
We buy your NetApp, EMC, IBM, SUN surplus.
NETAPP DS14MK4 W/14 X 144GB 15K HD (x278a)
16 SHELVES AVAILABLE
Enlarge
NetApp DS14mk2 AT Shelf w/ X267A-R5 X267A-R5 500GB SATA
90 day warranty
NetApp V-Series V3020c Filers 4 X 2GB FC
NetApp DS14MK4 with 14 X278A 15K 144GB drives.
We buy your NetApp, EMC, IBM, SUN surplus.
NetApp (14) X278A 15K 144GB DS14MK4
We buy your NetApp, EMC, IBM, SUN surplus.
NetApp 14 X278A 15K 144GB DS14MK4
We buy your NetApp, EMC, IBM, SUN surplus.
NetApp Hard drives 14 X278A 15K 144GB DS14MK4
We buy your NetApp, EMC, IBM, SUN surplus.
NetApp FAS980 Filer Head Network Appliance FAS 980
1 Year Warranty! Ask about Disk Shelves! WE BUY SURPLUS
NetApp FAS980 Filer Head Network Appliance FAS 980
NetApp X700B-ESH2-R5-C DS14MK2 SHLF ACPS 14x144GB
NetApp FAS980 Network Storage Filer Head 2x 2.7Ghz/6GB
NetApp X700AC DS14MK2 W/AC/PSU 14x144GB HD
NetApp FAS3020c iSCSI Filer Header
NetApp Network Appliance FAS960c Filer Unit System
NetApp SK-F810 Spares Kit for F810 Filer
NetApp X2044B FC-AL Card Dual Port Optical (SP-2044B)
NetApp X2044A FC-AL Card Dual Port Op (SC) (SP-2044A)
NetApp X2045A FC-AL Card Dual Port Optical (SP-2045A)
NetApp X2045B FC-AL Card Dual Port Optical (SP-2045B)
NetApp X3760B F760 Motherboard - NEW
NetApp FAS920 / FAS940 / FAS960 / FAS980 Filer Kit
NetApp X291A-R5 450GB FC Fibre Channel 15K Hard Drive
NetApp X289A-R5 450GB 15k SAS Internal Hard Drive
NetApp X3140A NVRAM IV Card w/ 256MB SP-3140A - NEW
NetApp X1922A FC VI Cluster Card Optical SP-1922A - NEW
NetApp X1925A Infiniband Cluster Adapter SP-1925A - NEW
NetApp X2040B QLA2200G FC-AL Fiber Channel HBA SP-2040B
One-day shipping available
NETAPP DS14 MK2 AT 14 X 500GB SATA TO FC (2) AT-FCX
NetApp DS14MK2 14 X 300GB 10K FC 2 X ESH2 1 YEAR WAR
NetApp X1125D Gigabit Ethernet Controller (SP-1125D)
NetApp X279A-R5 300GB 15K RPM Disk for DS14 MK2 - NEW
NetApp F880 X3135 NVRAM III 128MB Cache Card 110-02087
One-day shipping available
NETAPP FAS3050 Filer Head Supports DS14 MK2 MK2-AT MK4
$$$$$ WE BUY BACK YOUR SURPLUS / RETIRED EQUIPMENT $$$$
Enlarge
NETAPP FAS3050 Filer Head Network Appliance FAS 3050
NetApp DS14MK2 14 X 300GB 10K FC 2 X ESH2 X276A
NetApp R200 NearStore Head Unit 6GB 2X2.4GHz XEON
NetApp FAS3020 Filer with DK14MK2 (14 X 500 GB HDD)
NetApp X3129 NVRAM III Card 64MB for F85 SP-3129
