Spectrum Software
Industrial Strength Simulation




Spectrum Software has released Micro-Cap 11, the eleventh generation of our SPICE circuit simulator.

For users of previous Micro-Cap versions, check out the new features available in the latest version. For those of you who are new to Micro-Cap, take our features tour to see what Micro-Cap has to offer.




Questions and Answers - Spring 2015


Question: I was just wondering if there was a way of having node numbers stay fixed so when I added a component they would not change.

Answer: Not directly. The node numbers must be able to adapt to a changing circuit. What you can do though is to assign a node label like IN or OUT or even simpler A, or B, or C.

To assign a node label simply add text to any part of the node. Click on the Text icon, then click on the node and type in a node name. Once the OUT node label is assigned to a node, you can plot V(OUT) instead of say, V(10), avoiding the concern that the numeric name will change.

You can also add, edit, or change the node name by double-clicking on it while in Select mode. When you do this a dialog box comes up showing the names the node already has. Every node has a numeric name assigned by the program. It may have as many names as you like. To add a new one, type the name into the Node Name(s) field. To edit an existing node name, select it from the list and then type in the changes you want. Here is what the dialog box looks like:

Node label dialog box


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