描述
PLC的I／O点的价格还比较高，因此应该合理选用PLC的I／O点的数量，在满足控制要求的前提下力争使用I／O点最少，但必须留有一定的备用量。通常I／O点数是根据被控对象的输入、输出信号的实际需要，再加上10％－15％的备用量来确定。
NetApp X6523 2m Optical Cable Pair (2 x LC-SC)
NetApp X145B NEC 3 Mode Floppy Drive Black for F85
NetApp X266B 320GB SATA X266_MSABR320SSX DS14MK2-AT
One-day shipping available
NetApp X266B 320GB 3.5″ ATA SATA Disk for DS14 MK2 AT
One-day shipping available
NETAP – X266B – NetApp 320GB 7200RPM SATA Disk
NetApp 114-00021 Power Supply DS14MK2 RS-PSU-450-AC1N
Expedited shipping available
NetApp FAS960 Filer Head MotherBoard w/Dual Xeon 2.4GHz
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NetApp 2x 2Gb Optical-Copper ESH X5506A DS14MK2 Module
NetApp, Ethernet, ACP, RJ45, CAT6, 2M, X6561-R6 Cable
NetApp X266B 320GB 3.5″ ATA SATA Disk for DS14 MK2 AT
