621-0004 Honeywell

621-0010RC      Honeywell UCN Analog Output Module (621-0010RC)
621-0012        Honeywell UCN ASCII Communication Module (621-0012)
621-0012R       Honeywell UCN ASCII Communication Module (621-0012R)
621-0012RC      Honeywell UCN ASCII Communication Module (621-0012RC)
621-0014        Honeywell UCN Thermocouple mV Input Module (621-0014)

Description

承包方的技术力量,也就是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。

 

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