Seeking help with Zhejiang University Zhongkong DCS configuration
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This post was last edited by *aomingdahei on 2017-4-30 at 19:56. There is currently a manually controlled automatic regulating valve in the system, where 4-20mA corresponds to 0-100%. This valve serves as a replenishment valve, adding a certain amount of material to the system depending on its composition. However, operators sometimes forget to close it after turning it on; this has happened twice this year. Now, we want to change the setup so that the valve automatically shuts off after 10 minutes of being open (i.e., when the opening degree is 1% or more), meaning it can only remain open for ten minutes before shutting off automatically. How should it be configured, and what modules are required? The system is Zhejiang University Zhongkong Es 100. Thank you so much! !
It’s best to start with this for management purposes, but it’s not so good in terms of time. Also, if the components can be measured, it’s better to create a control loop
I’m not familiar with 100, but my understanding of the logical relationship is as follows: The valve scale MV is compared with a 1% value; thereafter, a pulse block is generated (set to 10 minutes), and this signal goes to the selection block. At this point, if the value is 1, then 0% is outputted (if 0 is not outputted, the MV value of the valve is selected). This is just my personal opinion