Can I read text files in Multisim 11.0?

[pvjoshi]

I want to take data from outside. So, can I read text file in Multisim 11.0? Or, Can I import LabVIEW graph in Multisim 11.0?

[lfelias]

Hi Pvjoshi,

I hope you are doing great!! I have been looking about what you are asking us and I have found some useful information.

In this link says that Multisim can support TDM files: http://zone.ni.com/devzone/cda/epd/p/id/4526

Here is an example that helps to import and export Grapher files: http://zone.ni.com/devzone/cda/epd/p/id/4526

In this other example, you can export data from Multisim to LV: http://decibel.ni.com/content/docs/DOC-8017

Also, take a look of this link, is about an instrument made for multisim: http://decibel.ni.com/content/docs/DOC-12152

I am looking for an example or something. I will post it as soon as possible.

[Fernando_D]

Hello,

In LabVIEW you can save your data using the LVM (LabVIEW Measurement file) format; look for this Express VI in the File I/O palette: Write to Measurement File. Then, in Multisim use the LVM_VOLTAGE source to import the data. Take a look of the following tutorial:

Importing Data from LabVIEW Measurement (.LVM) Files into Multisim

Here is one more option: in Multisim you can use the PIECEWISE_LINEAR_VOLTAGE source. This source can read a text file that contains a table of time and current or voltage points. This source can be found in the Sources Group, SIGNAL_VOLTAGE_SOURCES Family.

I hope this helps.

[pvjoshi]

Hello sir,

             Thank you for your reply. I tried the way you mensioned but I am not getting the outout. i.e. I have made .lvm file of sine wave and when I am connecting Oscilloscope to the voltage LVMsource, I am not getting output. What can be the reason?

Thank you

[Fernando_D · Accepted solution]

Hello,

Here is a step-by-step tutorial:

Using  LVM Files in Multisim

There is a trick when configuring the LVM file in LabVIEW. In the Write to Measurement File window, X Value Columns field, make sure you select One column only. Multisim needs to have this explicit time column when importing data.

If you still have problems attach your VI, LVM file and the circuit.

Regards,

[pvjoshi]

Hello Sir,

             Thank you very much sir for the reply. I tried the way and I got the result.

Thank you very much.....

[Sachin Gupta]

respected sir ...i read ur answers...

it helps me sir

thanks

sachin gupta

thapar university

india