描述
尽管用PLC实现对系统的控制可不用外部设备，配置好合适的模块就行了。然而，要对PLC编程，要监控PLC及其所控制的系统的工作状况，以及存储用户程序、打印数据等，就得使用PLC的外部设备。故一种PLC的性能如何，与这种PLC所具外部设备丰富与否，外部设备好用与否直接相关。
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NetApp FAS270c FAS270-270C Head2 R5 Dual Controllers
NetApp FAS270c Filer No Disk Dual Controllers FAS270
NetApp DS14MK2 14 X 300GB 10K FC X276A-R5
We buy your NetApp, EMC, IBM, SUN surplus.
NetApp DS14 MK2 Fiber Storage Shelf 14 x 300GB 4TB X276
We buy your NetApp, EMC, IBM, SUN surplus.
NetApp DS14MK2 14x 300GB 10K FC X276A-R5 4.2TB
We buy your NetApp, EMC, IBM, SUN surplus.
NetApp DS14MK2 Shelf 14x 300GB 10K FC X276A-R5 4.2TB
We buy your NetApp, EMC, IBM, SUN surplus.
NetApp DS14MK2 Shelf w/ 14x 300GB 10K FC X276A 4.2TB
We buy your NetApp, EMC, IBM, SUN surplus.
NetApp X3945-R5 Motherboard No Memory FAS3020 ,R5 New
NetApp FAS2050 Controller NetApp X3248A 111-00238
NetApp FAS2050 Controller NetApp X3248A-R5
NetApp FAS3050 Filer – Ontap licenses also available
NetApp 14 x 144GB 15K rpm MK2 disk shelf, X278A disks
