1756-PA75

P0922YU
1756-OF8
6SE7090-0XX84-0FJ0
TSX073L2028
6XV1440-4AN15
1756-PA75
分类:

Description

承包方对哪一工艺过程和DCS本身比较熟悉。如经常做化工控制系统的承包商来做轧制的控制系统,他对活套的控制、卷曲的控制和张力的控制等就不太熟悉,做的工程就不会太好。如果承包方对DCS本身不熟悉,控制器做的太大时会产生死机。不少工厂都购买了不同厂家的DCS系统,我们称之为“八国联军”状态,此时更要选择技术力量比较强的单位抓总,而不宜选择某一个国外厂商作为承包商

New Juniper JXE-1GE-SFP-S Copper Enhanced ePIM SSG
90 Day Hardware Warranty – Free Overnight Shipping!
Nortel Passport 8393SF CPU Fabric Module DS1404076
90 Day Warranty – Free Shipping!!
Nortel DS1333001 8600 1-port OC-12 MMF MDA for 8683 POS
90 Day Warranty – Free Overnight Shipping!
Nortel DS1333003 8600 2-port OC-3 MMF MDA for 8683 POS
90 Day Hardware Warranty – Free Overnight Shipping!
Spirent Adtech 500060 2.5 Gbps Generator/Analy​zer
IP (Layer 3) POS/ATM/FR OC-3/OC-12/OC-​48
Enlarge
3x Non Working Cisco 4GE-SFP-LC 4-port GE ISE Card
Free Shipping!
Ellacoya Networks SGS 44000 IP SWITCH