描述
PLC电源单元包括系统的电源及备用电池,电源单元的作用是把外部电源转换成内部工作电压。PLC内有一个稳压电源用于对PLC的CPU单元和I/O单元供电。编程器是PLC的最重要外围设备。利用编程器将用户程序送入PLC的存储器,还可以用编程器检查程序,修改程序,监视PLC的工作状态。除此以外,在个人计算机上添加适当的硬件接口和软件包,即可用个人计算机对PLC编程。利用微机作为编程器,可以直接编制并显示梯形图。
Netapp 106-02082 X5501 Copper-Copper DB9 LRC Module
NetApp JNI InfiniBand Dual 2GB PCI 111-00042 IBP-1X02
NetApp R200 Server NVRAM4 Card 256MB PCI-X 111-00023+C0
SEAGATE ST373405FC NETAPP X235 73GB 10K SCSI FIBRE HDD
One-day shipping available
NETAPP 36GB 10K FC DS14 SEAGATE ST336607FC X270A
One-day shipping available
NetApp X235 Sp235 108-00044 ST373405FC 10K 73GB DS 14
NetApp X235 Sp235 108-00044 ST373405FC 10K 73GB DS 14
NetApp X273 Sp273 108-00024+A0 ST373453FC 15K 73GB DS14
NetApp X235 72GB 10K HDD for DS14 FC Shelf SP-235 X237A
Lot of 2 NetApp DS14 73.4GB Hard Drives In Sleds/ Trays