Electrical drawings: function based pages or voltage based pages?
Posted: 10 Mar 2017, 15:15
Not sure if I use the correct English terms:
... but...
... if one realizes that product structure is the basis of engineering (think IEC81346), and drawings are nothing more then a way to present information to the ones that have to built the product...
... it really no longer matters what style is used.
So to end the discussion whether wiring diagrams should be function based or voltage based, one must separate the drawings from the product structure: put it in a separate database.
- function based: each page shows all electrical components and wiring that is needed to realize a function: e.g. level control Vessel A, transport conveyor belt C. Preferably along the functions as defined in IEC81346.
- voltage based: all components and wiring that connect to the same power supply voltage line are grouped to the same (set of) page(s). Main voltage (400VAC), control voltage (24VDC), PLC IO . This is still the most common used style.
... but...
... if one realizes that product structure is the basis of engineering (think IEC81346), and drawings are nothing more then a way to present information to the ones that have to built the product...
... it really no longer matters what style is used.
So to end the discussion whether wiring diagrams should be function based or voltage based, one must separate the drawings from the product structure: put it in a separate database.