Serial Pallet Scale Interface

[aricard60]

Hello,

I'm having a problem getting the weight data (load cell) from my pallet scale to read into LabVIEW. I'm sure I'm trying to configure the interface incorrectly, however I can't seem to find the right settings.

The scale's output is RS-232, and I'm using a RS-232 to USB converter. Using the scale manufacturer's software, I can read the scale data in real time. I've attached the .vi I made to try and accomplish this.

When I run the program with Highlight Execution I always get the error: (-1073807360) at the configure port step. If I change the parity to ANYTHING other than none the code changes to: (-1073807330) .

Any help would be greatly appreciated!

Andrew

[Mancho00]

Hi,

We would need to know more about the scale to be able to help.  What kind of scale is it?

[aricard60]

It's a Triner TSM Low-Profile Floor Scale. 

http://www.floorscalesdirect.com/tsm5-44-b-ntep-floor-scale.aspx

The Digital indicator it uses is the TS-700 MS.

[Mancho00 · Accepted solution]

According to the manual http://www.trinerscale.com/DOCS/OperatingGuide_TS-700_Series_V2.0.pdf

Your flow control setting is wrong

Also, you don't need to use bytes at port in your loop.  Visa is already configured to use 'LF' termination.  Just put the byte count to a value larger than you expect from a single read.

[aricard60]

That worked great to clear that error!

I'm not getting any errors now, but still no luck on getting the data to display from the scale. 

Am I correct in thinking the output from the VISA Reader is a string? 

[crossrulz]

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@aricard60 wrote:

I'm getting any errors now, but still no luck on getting the data to display from the scale. 

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What error?  Do you have code you can share?

[aricard60]

I apologize cross, I mis-typed. I edited my post to reflect the situation.

Andrew 

[aricard60]

The only way to get through the VISA Read command error free is if the byte count is set to zero. Not sure if this is correct.

[crossrulz]

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@aricard60 wrote:

The only way to get through the VISA Read command error free is if the byte count is set to zero. Not sure if this is correct.

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Definitely not.  That is telling the VISA Read to read nothing.  Again, we need to see code and we need to know what errors you are getting.

[aricard60]

Attached.