Description
UPS的选择:应根据DCS系统的要求选择合适功率的UPS,UPS备用电池备用间可以根据系统满负荷工作30分钟来考虑。由于UPS的故障不可避免,因此,UPS类型应考虑能够在线更换,避免更换或维修UPS影响DCS系统的运行。对于重要装置应考虑双机热备,但就现在的此类双机热备UPS,其同步常出现问题而影响后备切换。因此,UPS的选择应慎重。
National Instruments Terminal Box – TXB-68
National Instruments 1m(3.2 ft.) MXi Bus Cable 180760
National Instruments AT-GPIB/TNT IEEE 488.2
NATIONAL INSTRUMENTS 181435C-06 AT-AO-6/10 BOARD
National Instruments: AT-MI0-16DE-10 DAQ Card
National Instruments MXI Cable 2 Meter
NATIONAL INSTRUMENTS AT-MIO-16 180705 180705-11 PCB
National Instruments PC-DIO-24 Digital Card 180710-01
National Instruments NB-DIO-24 Digital I/O Board – Maci
National Instruments NI GPIB-USB-B Controller Tested