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English Translations » 历史存档[信息] » What is the difference between diamond symbols and dashed li

What is the difference between diamond symbols and dashed lines in flowcharts?

2016-05-12View Original

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For example, in the case of liquid level sensing and control valve interlocking, there is a dashed line connecting the two to indicate that they are related; but why are there some interlocking symbols that appear as diamonds without any lines connecting them?
Reply #22016-05-12
Take a look at HG/T 20505-2014 \"Functional Indicators and Graphic Symbols for Process Measurement and Control Instruments\"
Reply #32016-05-12
The diamond symbol represents entering the SIS system, right?
Reply #42016-05-13
On the PID homepage, there are usually instructions for the instruments

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Translated at 2026-07-21 00:15:39

Original: https://bbs.hcbbs.com/thread-1585515-1-1.html

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