The instrumentation technician wants to learn DCS but doesn’t know where to start

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In China, there are companies like Inovance and LSIS; learning one of them is sufficient

The DCS systems are all more or less similar; in fact, once you master one of them, it becomes much easier to learn the others. Since you have experience with Kontrol and Yokogawa, start by learning Kontrol first. After all, it’s a domestic product, so it’s easy to understand in every aspect. If you want to learn, the first step is to understand the network structure and the main functions of its various components. In the second step, learn about the hardware, mainly the addresses of the cards, the locations where they can be inserted, etc. Also, pay attention to what the indicator lights mean. A basic understanding of the IO cards is sufficient; focus mainly on the power distribution for AI and the power supply for DOs. Third, learn programming configuration. This is the key. To start with configuration, learn network setup and hardware configuration first. After that, I learned how to create flowcharts, configure trends, handle permission settings, and generally everything related to what is displayed on the operator station and what can be operated there. Finally, learning programming. If you want to learn programming, first understand several types of programming languages such as ladder diagrams, sequential control, ST language, and FDB. Among these programming languages, it is recommended to start with FDB as it is simple and easy to understand; ST should be learned last, as it requires a foundation in programming. Before learning programming, it is necessary to know about various data types, as well as the ranges and appropriate uses of the most common ones. After that, start by looking at programs written by others to understand their functionality and the logic behind them. Once everything is clear, move on to examining similar systems in series, and gradually try to write programs on your own until you can do it independently – at that point, you’re pretty much there.

The first step is to make up your mind, and then learn the basic knowledge

I need detailed information and a systematic explanation; my knowledge of instrumentation is limited

The best resources are the configuration manuals and function block descriptions provided by the system manufacturers; in addition, one needs to have a certain foundation in programming – at the very least, a level equivalent to Computer Level 2 C

It is recommended to start with the central control system, as it is simple to learn

The central control system is simple, while that of Lenze is a bit more complex. I haven’t worked with any foreign systems; our factory doesn’t use any imported systems

1. Zhejiang University’s Zhongkong is easier to understand for studying*, as all the helpful information is in Chinese； 2. Step 1: Install the software ； 3. In the second step, determine what hardware components make up the system and carry out hardware configuration. 4. Copy back the configured settings for use ； You should understand the various controls at your workplace, or you can find someone who can help you understand them quickly ； 5. Prepare two computers; view the original configuration and repeat the process on the other computer ； Among them, 1) following the hardware instructions will work without problems ； 2) Import a flowchart directly, edit it; if there are errors, consult the help documentation (the main error is the absence of custom variables), and add the corresponding variables (1 byte, 2 bytes, etc.). 3) Then copy the control scheme ； Work on one plan at a time, then compile it; if there are no issues, move on to the next step ； 6. Following the steps above, I copied a set of large-scale air separation project documents, and then I carried out two projects myself. This is the Tu Baliu method, but it still works quite well

In my opinion, there’s really no such thing as whether one can learn this or not; as long as one has the opportunity to come into contact with it, by clicking on the software and looking up things one doesn’t understand, and by observing more, one will be able to master it – it’s not difficult at all. In simple terms, it’s like asking, “I want to learn *how to use a computer; where should I start?” ”