描述
PLC系统的通信网络中，上级的网络通信速率应大于1Mbps，通信负荷不大于60%。PLC系统的通信网络主要形式有下列几种形式：1）PC为主站，多台同型号PLC为从站，组成简易PLC网络；2）1台PLC为主站，其他同型号PLC为从站，构成主从式PLC网络；3）PLC网络通过特定网络接口连接到大型DCS中作为DCS的子网；4）专用PLC网络（各厂商的专用PLC通信网络）。
NetApp F740 Filer System Array With Cabinet VRIS38S
NETAPP FAS270 ONE Controllers 14 X 300GB FC 4.2TB
NetApp FAS960 Network Appliance Filer Head
We buy your NetApp, EMC, IBM, SUN surplus.
NetApp NetCache C3300 6 X 72GB 10K FC
We buy your NetApp, EMC, IBM, SUN surplus.
NETAPP FAS270 14 X 300GB FC ONE YEAR WARRANTY 4.2TB
NetApp X1937A-R5 PCIe, 256GB, PAM II Card
We buy your NetApp, EMC, IBM, SUN surplus.
NetApp FAS270C Filer Cluster w/ 14 X274A 144GB 10K 2TB!
NETAPP FAS3020 FILER W/ 3x DS14MK2 5TB X272 X262B X234
NetApp FAS3020 Filer DS14MK2 14x 144GB 10K X274B-R5 2TB
1 Year Warranty! Ask about Disk Shelves! WE BUY SURPLUS
Network Appliance NetApp VTL700 Virtual Tape Library
NetApp X900A-ESH2-QS-R5-C DS14MK2 SHLFACPS14x300GB
