Variant input to a simulation subsystem in LVSim 2.0

I have a simulation subsystem that takes a variant as one of its inputs. This worked well for my purpose in Labview 7.1. I've now upgraded to LabView 8.0 and simulation module 2.0. The subsystem appears correct when opened, but when I use it in a simulation loop, the variant input appears as type void and connecting a variant to it causes an error. Is this an error with my VI or are variants no longer allowed in simulation subsystems?

Chris,
I see what you mean. I looked through the release notes and Help files but did not see any mention of the variant data type. I will see if R&D has a more definite answer.
Best Regards,
Message Edited by Doug M on 07-05-2006 07:35 PM
Doug M
Applications Engineer
National Instruments
For those unfamiliar with NBC's The Office, my icon is NOT a picture of me

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How do I tell a variant input that a string is coming in?

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Message Edited by andre.buurman@carya on 08-29-2007 12:05 PM
Message Edited by andre.buurman@carya on 08-29-2007 12:05 PM
Regards,
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Using whatever version of LV the customer requires. (LV5.1-LV2012) (www.carya.nl)

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Hi,
Have you tried to put in plain data or an object reference into your variant parameter?
I think plain data should work... for object references i don't know.
Some time ago, i also coded a small activex library, where i passed object references by parameters in delphi. I did not use variant parameters, but the real interfacedeclaration types (like IMyObject**). This worked fine. I also uses "dual" interfaces for the objects, which get passed by parameter. But i don't really know if this is helpfull for vb.
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insert an new Property "int32 Object_Handle".
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But thats not a very comfortable workaround.

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You might be right. I was think of one small 1.5 HP controller (Commander SE) we are using that is being powered by 1-phase 240 VAC supply. So I was thinking the motor was 1-phase, but actually it does the voltage chopping to create a 3-phase supply to the motor.
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Thanks!

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VectorA
Prototype:
VB      VectorA(nNumberOfAxes As Integer, nAxesArray As Variant,
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Delphi VectorA : (nNumberOfAxes: Smallint; nAxesArray: OleVariant;
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Hi Mr. NiceGuy,
The code from the manufacturer has a To Variant converter between the arrays and the Property Node. I'd recommend converting the arrays to variants in your code. You can find that To Variant VI on the Functions Palette » Programming » Cluster, Class, & Variant »Variant. Let us know if that works.
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Regards,
Hillary E
National Instruments

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have u configured the payslip properly? using pe51?
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It seems that there is a limitation that I've come across. When the variant data is passed through the results data of a step it becomes invalid. I've modified the original code you submitted and was able to reproduce my problem. When you run the attached code, you will see a type mismatch error. Also, if you break it and look at the results variant data it does not contain the structure.
Using LV8.5 and TS 4.0.1
Message Edited by Michael Aivaliotis on 02-11-2008 02:12 AM
Michael Aivaliotis
VI Shots LLC
Attachments:
LV Variant2.zip ‏27 KB
2.png ‏21 KB

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Solved!
Go to Solution.

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Hi
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Best Regards
soeren

Hi soeren
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Attachments:
SimulationTiming.PNG ‏26 KB
Sync_Timed_Sim.PNG ‏20 KB

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Is there a way to create a SubVI with a real poly input? I mean an
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Thanks in advance, Mike

Faraclas wrote:
Yes, you can make polymorphic VIs.
Do you have a specific example you are looking to impliment?
Thank you. I am aware of the polymorphic VIs, but their limitation is, that the input type has to be known up front. I am looking for a way to get something similar to the real "poly input" that is only limited to LabView native VIs. I want to implement a function that can serialize any input in "little-endian" form an then send it over the wire. My goal is to have serialization "hidden" from the user. One idea is to have the Variant input, but the data sent would have to be "raw" (without the encapsulating variant). But the challange is, how to "unvariant" without knowing what is inside.
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RTD simulation Help

I am trying to use a VOLTAGE_CONTROLED_RESISTOR_VIRTUAL to simulate an RTD. From what I have read this is one way to simulate an RTD. I am using the voltage input as a simulation for temperature.
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Attachments:
multisimRTD.JPG ‏304 KB

Hi Eric,
I duplicated your circuit and there are two things you need to do get the right measurement:
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National Instruments
Attachments:
RTD.ms11 ‏53 KB

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Solved!
Go to Solution.

From Blackberry Tour CJK Project
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I started the simulator and just played around a little and after a little playing aroundwas able to get Japanese input on the Simulator.
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Simulator CJK.alx: http://docs.google.com/View?id=dgf9xbxd_20gw2tzjft

Variant input to a simulation subsystem in LVSim 2.0

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