9/10/2023 6:59 AM | |
Joined: 3/30/2020 Last visit: 10/9/2024 Posts: 4834 Rating: (988) |
Hello. Fighting tradition is difficult. Years ago memory was very expensive. The S7-300 and S7-400 did not have much of it. Program designs focussed on using memory sparingly and efficiently. That would include using IDBs (instance datablocks) where possible. The older generation designers probably stick with methods they used before. Some newer generation designers learn by their example without asking why. The design focus (according to 'textbooks') for designs are now different. It is more about ease of use. The code should be self documentary. Doing so has the penalty of consuming processing and memory to run the program. But there is the potential of coding errors and taking less time doing fault finding translating in less production loss. There is no hard rule in which programming style is adopted. Consistency and clear design purpose is of most value. Does these notes answer your query or where you looking for a pros-and-cons bulleted list for a research paper? Regards. Recent related topic: |
Last edited by: qwazee at: 09/10/2023 07:04:51Activities of this user is voluntary. There is no obligation or liability placed on this user. Though optional, your 'please' and 'thank you' is highly valued. |
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