描述
根据PLC梯形图程序扫描原则，按先左后右先上后下的步序，逐句扫描，执行程序。遇到程序跳转指令，根据跳转条件是否满足来决定程序的跳转地址。从用户程序涉及到输入输出状态时，PLC从输入映象寄存器中读出上一阶段采入的对应输入端子状态，从输出映象寄存器读出对应映象寄存器，根据用户程序进行逻辑运算，存入有关器件寄存器中。对每个器件来说，器件映象寄存器中所寄存的内容，会随着程序执行过程而变化。
NetApp 6.5FT VHDCI 68-Pin to Standard 68-Pin SCSI Cable
NetApp 108-00016 X266A Hard Drive Caddy DS14MK2-AT
Expedited shipping available
NetApp QLogic 64-Bit 2-Port HBA Fibre Adapter QLA2212F
One-day shipping available
Net App X5501A LRC-Module(copper to copper) 106-02082
NetApp 2GB ESH XYR 43648-14 RS-ESH2-FC-14-CU Module
NetApp Dual SE-Wide SCSI Adapter PCI Card 110-03175-A3
Trolli Large Sour Cola Bottles 1.1kg net app 110
Trolli Large Sour Cola Bottles 1.1kg net app 110
Molex Netapp Cable 112-00028 – 739391101
NetApp 106-02082
NetApp Network Appliance R150 Storage Disk Shelf Array
NetApp X272 72GB 10K FC Disk Drive + Tray DS14 DS14MK2
NetApp 72GB/73GB 10K FC Fibre Hard Drive For DS14: X235
