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English Translations » 【仪表自控交流圈】 » What do some of the symbols in I/O types mean?

What do some of the symbols in I/O types mean?

2017-05-25View Original

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In the I/O types shown in the diagram, what do SWF and SWA mean? And what does VD refer to in the status column? What does IS-AIR mean among the I/O types in the diagram, and what does EC mean in the status column? What is AIR (E) among the I/O types in the diagram?
Reply #22017-05-25
IS-AIR: Instrument air. The design should include symbolic annotations.
Reply #32017-05-26
It should be instrument air, to be more precise
Reply #42017-05-30
How are these pictures uploaded: lol

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Translated at 2026-07-21 02:49:07

Original: https://bbs.hcbbs.com/thread-1783149-1-1.html

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