531X139APMASG2

 PLC是专为工业控制而开发的装置，其主要使用者是工厂广大电气技术人员，为了适应他们的传统习惯和掌握能力，通常PLC不采用微机的编程语言，而常常采用面向控制过程、面向问题的“自然语言”编程。国际电工***会（IEC）1994年5月公布的IEC1131-3（可编程控制器语言标准）详细地说明了句法、语义和下述5种编程语言：功能表图（sequentialfunctionchart）、梯形图（Ladderdiagram）、功能块图（Functionblackdiagram）、指令表（Instructionlist）、结构文本（structuredtext）。梯形图和功能块图为图形语言，指令表和结构文本为文字语言，功能表图是一种结构块控制流程图。

 

NetApp FAS2050 Controller NetApp X3248A-R5

NetApp FAS3050 Filer - Ontap licenses also ***ailable

NetApp 14 x 144GB 15K rpm MK2 disk shelf, X278A disks

NetApp FAS3050 Filer Head 

NetApp FAS270 Filer Head w/14 X274A 144GB 10K FCAL

NetApp FAS270 Filer Head w/14 X274A 144GB 10K FCAL

NetApp FAS940 w/2x DS14 MK2 14x 144GB 10K X274B-R5 

NetApp FAS940 Filer w/2x DS14MK2 14x 144GB 10K X274B-R5

NetApp FAS940 Filer w/2x DS14MK2 14x 144GB 10K X274A

NetApp SK-F740B F740 Spares Kit - NEW Network Appliance

NetApp F760 Cluster (F760c) w/ (2) FC9 7 x 36GB
5 Year Next Business Day Warranty on All NetApp

NetApp X3146A-R5 NVRAM Card

NetApp 114-00014 Hot-Swap 650 Watt DC Power Supply

NetApp X500 14x36GB 10K DS14 Shelf Network Appliance

NetApp X1201B ATM OC-3 LANE - NEW

NETAPP X287A-6PK-R5 Disk Drives,6Pack,30?0GB,15k,SAS,R5
One-day shipping ***ailable