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Analog PLC I/O symbols?

Printed From: CAD Forum
Category: EN
Forum Name: CAD - general
Forum Description: General discussion about CAD, formats, standards, management, licensing, networking, harware, other CAD applications
URL: https://www.cadforum.cz/forum_en/forum_posts.asp?TID=1690
Printed Date: 16.Aug.2026 at 23:20


Topic: Analog PLC I/O symbols?
Posted By: JAZZNSKA
Subject: Analog PLC I/O symbols?
Date Posted: 17.Feb.2009 at 23:23

I don't know the correct drawing symbols to use for ANALOG I/O devices. I'm generating some documentation of our PLC setup, I'm very familiar with DIGITAL I/O, and I've got a good CAD library of DIGITAL I/O devices (Pressure switches, relay coils, etc), but now I have to draw in some pressure and level sensors, and valve positioners, and I'm not sure what the symbols should look like?
Can anyone provide some examples, or point me to a website with some examples?

Thank you


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