Part Labels and Annotation

Part Labels and Annotation:


You should see that all the parts you have placed have both a unique reference and a value. The reference is set by a feature of ISIS called [[Real Time Annotation which can be found on the Tools Menu and is enabled by default. Basically, when enabled, this feature annotates components as you place them on the schematic, saving you the time and effort of doing this manually.

You have full control over the position and visibility of part labels – you can change the values, move the position or hide information that you feel is unnecessary.  The discussion below details how to manipulate part labels on a per component basis.

If you zoom in on any resistor you have placed you will see that ISIS has labelled it with a unique Reference (e.g ‘R1) and also with a Value (e.g. ‘10k’).  You can edit both these fields and their visibility via the Edit Component dialogue form. Launch this dialogue form now by double clicking the left mouse button over the resistor (or using one of the alternative methods discussed previously).

Choose to Hide or show references and values
Choose to Hide or show references and values

From the resulting dialogue form you can edit both the part name reference and, in this case, the resistance. Of more interest to us however, is the visibility options (highlighted in the above screenshot). It can be useful, particularly in densely populated schematics to hide some details displayed beside the parts – the trade off being that you would then need to edit the part as above to see it’s reference and value.

At this stage it is worthwhile familiarising yourself with editing components and hiding and showing references and values.

Some caution is required when changing part references in this manner. If, for example, you change ‘R1’ to be ‘R2’ then you will have two parts with the same reference on the schematic. This will cause problems later when netlisting through to ARES. We recommend that in practice novice users change annotation via the Global Annotator as discussed later in this tutorial.

As well as the ability to hide part labels you can move them to a more convenient place. This is commonly used where you might want to place a wire over the current position of the label and need to free up some screen space. We will try this now with the ‘R2′ and the ’10k’ labels on the pull up resistor, moving them across to the other side of the component body.

Start by selecting the resistor. Now point at the label ‘R2’ and with the left button depressed, drag it to its new position to the left of the component body. Then do the same with the ’10k’ label.

Moving a Component Value
Moving a Component Value



#collected from the proteus>>help>> tutorial page

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