描述
当PLC扫描频率为10次／min以下时，既可以采用继电器输出方式，也可以采用PLC输出驱动中间继电器或者固态继电器（SSR），再驱动负载。对于两个重要输出量，不仅在PLC内部互锁，建议在PLC外部也进行硬件上的互锁，以加强PLC系统运行的安全性、可靠性。
Enlarge
NETAPP X900A-ESH2-R5-C DS14MK2 14x 300GB 10K 4.2TB X276
INCLUDES ACCESSORIES! ECS BUYS SURPLUS SHELVES & FILERS
One-day shipping available
Enlarge
NetApp DS14MK2 14x 300GB 10K X276A 4.2TB!! DS14 MK2
4.2TB of Disk!!!!!! 1 Year Warranty! WE BUY SURPLUS!
One-day shipping available
NetApp DS14 MK2 Shelf w/ 14x 300GB 10K FC X276A DS14MK2
INSTOCK READY TO SHIP! 1 Year Warranty! WE BUY SURPLUS
NETAPP X900A-ESH2-R5-C DS14MK2 14x 300GB 10K X276A-R5**
We Buy Your Surplus NETAPP, SUN, DELL, HP, CISCO, IBM
One-day shipping available
Network Appliance DS14MK2-AT (14) 500GB X267A Netapp
INSTOCK!! SAME DAY SHIPPING AVAILABLE!! 949-553-6444
One-day shipping available
Netapp DS14MK2 Fiber Channel 14x 300GB X276A-R5 4.2TB-
