Multisim and Ultiboard

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orcad to ulltiboard

What is the best way to import a netlist into ultiboard from orcad capture?
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Message 1 of 6
In OrCAD capture export the netlist to a Calay netlist format. Importing this netlist format to Ultiboard will be your easiest method of going from OrCAD to Ultiboard.
Message 2 of 6
Thankyou Bhavesh
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Message 3 of 6

Notes on transfer from OrCAD Capture CIS 16.0.0.p001 to Ultiboard 10.1.197  


In Orcad, create netlist, pick tab other, formatter: calay.dll

The output is 2 files: *.net and *.cmp  

If feasible, in Orcad, renumber reference designations before starting

Print out the *.net and the *.cmp files.


In Ultiboard, File->New Design

In Ultiboard, File->Open…

Pick Files of Type: Calay Netlist Files (*.net)

Open the *.net file


In Ultiboard, in spreadsheet view, pick parts tab. Print using the spreadsheet view print icon. Compare with the *.cmp file printed above. Insure that all the parts and reference designations are there! (The reading of the *.net and *.cmp file doe not always report it could not find / match a footprint.)   


Ultiboard expects electrolytic capacitor pin names + and -. Orcad and Calay format uses 1 and 2. In Ultiboard, make a new properly sized electrolytic capacitor footprint but with pin names 1 and 2.

Ultiboard expects diode pin names C and A (for Cathode and Anode). In Ultiboard, make a new properly sized diode footprint with pins named 1 and 2.

And so on.

One has to be careful the parts with changed pin names do not conflict with future Multisim / Ultiboard transfers. Use unique names!  


For uncommon parts, compare the expected pin locations with the original schematic and the part’s data sheet.


Go over the *.net file. For example, the /GND (digital ground) and /AGND (analog ground) nets, even if connected on the schematic, are separate nets in the netlist.

There is a “net bridge” in Ultiboard to connect nets, but look in the forums for more information on using it.

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Message 4 of 6

Since this answer is quite old I would like to get the response refreshed. 


I need to import a netlist from a recent version ORCAD schematic to Ultiboard 14.1.


Is Calay still the preferred ORCAD export format?



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Message 5 of 6

I was able to import the calay64 netlist, though no parts came in.  I would have thought any part without a matching footprint would come is as a 'no footprint' symbol, but no parts came in, even those that had matching footprints.  When I added a few parts manually I found there are netlist errors.  i.e. I have a resistor with one pin listed in two different nets, even though the input calay netlist is correct and does have that extra false connection.


It also looks like I can't import a revised netlist into an existing design.  Each new import results in a new design opening instead.


Any ideas?

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