DCS system debugging issues
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This post was last edited by jacob451 on 2010-5-18 13:46 The project will end soon and enter the debugging part. How to debug it! Although I have a master to guide me, I must be a novice. Can you please tell me how to start the quasi-book work? Does the DCS configuration (I use Zhejiang University Zhongzi) need to create variables on the operating station? It seems that important variables need to be created again! I am an engineering station and occupy one for operations.
The variables of the Zhejiang University JX-300XP system are universal and do not need to be redefined. In some foreign systems, the software used by the control system and HMI is separated, and the variables of the two need to be defined separately and corresponding to an address.
What he asked about was the system of Zhejiang University and Zhongzi, not the 300XP of Zhongkong.
yes. It is the SunyPCC800 series DCS produced by Zhejiang University! Please give me your support!
The basic idea of debugging is to open a single point first, then adjust the loop, and finally the system simulates the debugging chain. It only takes three sentences, but there is indeed a lot of work involved.
We have used the system of Zhejiang University Zhongzi, but it is not very stable. Why not use the system of Zhejiang University Zhongzi?
Zhejiang University Zhongkong's one is easy to use, but Zhongzi's one doesn't know. Many upper and lower layer software are automatically transferred, such as Siemens' PCS7, and some are manually defined, such as Hollysys' Smartpro. Please consult the manufacturer for specific details.
Didn't you make this configuration? If you understand the idea of configuration, debugging will save a lot of effort. Debugging is to go step by step, first control the system hardware, then add on-site single points, and then on-site joint debugging. Don't be lazy, don't save effort, do it step by step, have clear ideas, and the work will not be messy. In the middle, there will be coordination issues with other majors such as electrical. You must first understand the interface equipment, signals, and controls with the other party. The work will be easier, and it will be easier to find out whose problem is it.
The basic preparation for debugging is to prepare an operating station to operate variables or field equipment, and then use the engineering station to modify or find problems. The division of labor must be clear.
Power on the instrument, check whether the measurement point value display is normal, then debug the interlocking and PID loop to see if the signal can be output correctly, and finally jointly debug with the equipment 1# Zeng Hong 1986
Regardless of the system, the idea is basically the same, starting with system and network hardware configuration, basic measuring point lower-level configuration, upper-level process operation interface, loop debugging, etc.