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Electronics Forum / CAD / August 2005Electronic drawing standards question
I've been looking at a lot of schematics over the last week and it looks like there is no agreed set of symbols that would constitute a standard. Or, some companies just choose to do things their way. So I was wondering if there is a stet of standards for symbols (and other aspects of electronic drafting) and how I can get a copy? Thanks, Dave >I've been looking at a lot of schematics over the last week > and it looks like there is no agreed set of symbols >that would constitute a standard. > Dave Boland That's the great thing about standards: So many from which to choose. http://groups-beta.google.com/group/sci.electronics.design/browse_frm/thread/6a4 acf0ea03d2cfc/2d0180fa64da73a7?q=mixes+sometimes-in-the-same-book . . >Or, some companies just choose to do things their way. AKA "The logical solution" IMO. http://groups-beta.google.com/group/sci.electronics.design/browse_frm/thread/5e3 bedbd410ec19f/4cc37c23b1fcfe31?q=set-your-own-standard-and-put-in-in-as-a-chapte r-in-your-ISO9005-manual . . >So I was wondering if there is a [set] of standards for symbols >(and other aspects of electronic drafting) and how I can get a copy? Another solution: Adopt one you think has esteem. http://groups-beta.google.com/group/sci.electronics.design/browse_frm/thread/6a4 acf0ea03d2cfc/399b18e39f3eb0b8?q=Engineering-Drawing-Practices+Price http://groups-beta.google.com/group/sci.electronics.design/browse_frm/thread/a85 5b00a1dc7f357/317e946c14a86fa9?q=symbols+ANSI-standard > I was wondering if there is a set of standards for symbols > (and other aspects of electronic drafting) IEEE Std 315, "IEEE Standard Graphic Symbols for Electrical and Electronics Diagrams" > and how I can get a copy? http://www.techstreet.com/cgi-bin/detail?product_id=1843 >> I was wondering if there is a set of standards for symbols >> (and other aspects of electronic drafting) [quoted text clipped - 5 lines] > >http://www.techstreet.com/cgi-bin/detail?product_id=1843 IEEE Standard Graphic Symbols suck! ...Jim Thompson | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | | http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food. >>IEEE Std 315, "IEEE Standard Graphic Symbols for Electrical and Electronics >>Diagrams" [quoted text clipped - 6 lines] > > ...Jim Thompson They are a classic example of a solution searching in vain for a problem. -Chuck >>>IEEE Std 315, "IEEE Standard Graphic Symbols for Electrical and Electronics >>>Diagrams" [quoted text clipped - 11 lines] > >-Chuck The great committee solution, almost as useful as the EDIF "standard" ;-) ...Jim Thompson | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | | http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food. > On Fri, 12 Aug 2005 12:20:56 -0400, Chuck Harris >>They are a classic example of a solution searching in vain for >>a problem. [quoted text clipped - 5 lines] > > ...Jim Thompson Except that EDIF could have been great if the committee had been competent. As it is, there are so many variations, that all follow the standard, that the interoperability they envisioned is all but impossible. -Chuck >> On Fri, 12 Aug 2005 12:20:56 -0400, Chuck Harris > [quoted text clipped - 13 lines] > >-Chuck My observation is that CAD companies try to make it all but impossible to transfer data between different tools. ...Jim Thompson | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | | http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food. : My observation is that CAD companies try to make it all but impossible : to transfer data between different tools. Did I just hear somebody make an argument for open-source EDA? Stuart >: My observation is that CAD companies try to make it all but impossible >: to transfer data between different tools. > >Did I just hear somebody make an argument for open-source EDA? > >Stuart You bet! ...Jim Thompson | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | | http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food. >>My observation is that CAD companies try to make it all but impossible >>to transfer data between different tools. >> Jim Thompson > >Did I just hear somebody make an argument for open-source EDA? > Stuart Brorson I like the competition (and cross-pollination?) that is beginning: http://groups-beta.google.com/group/sci.electronics.cad/browse_frm/thread/789148 53e4bb8dbc/fd7d08078bc06a2e?q=our-review-of-KiCad+compared-it-to-the-gEDA-PCB-Su ite The *porting* thing is pretty cool too: http://groups-beta.google.com/group/sci.electronics.cad/browse_frm/thread/789148 53e4bb8dbc/?q=versions-for-Linux-and-Mac-OS-X+may-also-appear http://groups-beta.google.com/group/sci.electronics.cad/browse_frm/thread/48df3a acea9f678e/6fea470843e2daaf?q=The-Windows-port+working-on-a-new-Windows-release+ zzz+mingw+and-Windows+runs-on-*-*--Unix-like-*+runs-on-*-OSX+author:Ales-Hvezda "Jim Thompson" wrote... >> IEEE Std 315, "IEEE Standard Graphic Symbols for >> Electrical and Electronics Diagrams" > > IEEE Standard Graphic Symbols suck! Are we talking about the same thing? IEEE 315 (-1975, and the 315A-1986 supplement) is the one with all the basic symbols; resistors (rectangle and zigzag are both allowed), capacitors, inductors, BJTs, FETs, vacuum tubes, etc. In my experience most drawings follow this, but many get the details wrong for less common components such as thermal fuses, transducers, ganged switches, etc. It is handy to be able to look up the correct symbol for things one does not use often. IEEE 315 also has a list of preferred reference designators, which is a handy thing to standardise on to maintain consistency between BOMs, purchasing systems and CAD systems. On the other hand "IEEE Graphic Symbols for Logic Functions" is more controversial, and less widely used. >"Jim Thompson" wrote... >>> IEEE Std 315, "IEEE Standard Graphic Symbols for [quoted text clipped - 18 lines] >On the other hand "IEEE Graphic Symbols for Logic Functions" is more >controversial, and less widely used. The Logic Functions "standard" was what I was thinking of... really gross... totally non-intuitive! ...Jim Thompson | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | | http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food. |
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