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DCS的SFC组态过程

作者:高考题库网
来源:https://www.bjmy2z.cn/gaokao
2021-02-17 22:20
tags:

-

2021年2月17日发(作者:乐活族)


DCS



SFC


组态过 程



SFCs(Sequential


Function


Charts):EMERSON


DeltaV



< br>种


CONTROL


MODULE(

控制模块


)




Using SFC-T101



-T101:Sequential


Function


Chart


for


automated


STARTUP


and


SHUTDOWN


-T101



Named Set NS-101, 1=STARTUP



255=SELECT SEQUENCE


-102


:联锁马达控制模块(进料马达)



-102< /p>


:常规


PID


控制模块(进料流量)



-101




电磁阀控制模块



组态步骤:



Step Named Set


NS-101


using DeltaV Explorer.



Step


Properties


and names and values as shown below.


Named Set NS-101(Name- Case sensitive)








Visible








User Selectable


1


=STARTUP
































YES










YES


255=SELECT SEQUENCE




















YES











NO



Step


Control Studi


o to create Sequential Function Chart


SFC-T101


.Select


New


and change Algorithm Type to


Sequential Function Chart.



Step parameter


MESSAGE


(Named Set,NS-101).



Step Sequential Function Chart using


Steps


,


Transition


and


Terminations


from


the


All SFC Items


Palette.




HOLD_SFC






















MASSAGE

< br>’


:=



NS-T101:SELECT SEQUENCE
















+





MAS SAGE



=


NS-T101:STARTUP





OPEN_BLK_VLV






















Open the block valve XV-101














+





Wait for the block valve to open XVSTAT-101











SET_FLOW_RATE















Set the flow rate to 50GPM FIC-102














+





Wait for flow valve to be >30% open











START_PUMP














Start pump MTR-102














+








Wait for pump start


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