Scale precision - LabVIEW 8.5

I seem to be having a problem related to keeping a scale precision to 0 digits of precision. I have even specified advanced formatting using format string of %d and it does not work. This problem seems to be related to the issue raised here:
http://forums.ni.com/ni/board/message?board.id=170&message.id=206365&query.id=45575#M206365
Specifically, the digits of precision changes from 0 to 1 on an intensity graph when I rewrite to a local variable of the intensity graph.
Anybody have a workaround?
Thanks,
Don

Hello Don,
As the R&D department stated, a good option is to use the %d in the advanced editing mode. In the VI, you can also write the format string to a property node, and programmatically set digits to 0. The R&D department are revising this behavior at the moment.
Regards,
Juan Galindo
Juan Galindo
Applications Engineer
National Instruments

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OHAUStoLABVIEW(1)_mod2.vi ‏54 KB
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Creating bridge scale in labview -No calibration certificate with pressure sensor

Hello everyone,
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Hi Wapz,
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http://digital.ni.com/public.nsf/allkb/7695C93D283BC1A086256B1800631DCF?OpenDocument
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http://www.ni.com/white-paper/3639/en/#toc4
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Kind Regards,
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www.ni.com/support

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How can I customize the scale of my waveform graph to suit my waveform?

I am trying to display a sinusoidal waveform on a waverform graph. I want to make sure that the graph displays only 5 cycles of the sine wave and thus changes the x-axis scale accordingly. Hence this would mean that me plot remains the same no matter what the frequency of sine wave I input, only the scale changes. How can I do this? Also once this is done, is there any way in which I can manually change the scale while labview is running to change to plot?

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DISTek Integration, Inc. - NI Alliance Member
mailto:[email protected]
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Update_graph_scale.vi ‏40 KB

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Hid interface to Pelouse scale

I've got a client who would like to read weigts from a Pelouze USB scale into LabVIEW. The scale comes with a driver that is based on the HID interface. There are several threads on the forums about talking to USB devices using USB RAW through VISA and on talking to HID devices, but I couldn't find any thread that claimed that the HID idea had been done successfully from LabVIEW.
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David Thomson Original Code Consulting
www.originalcode.com
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There are 10 kinds of people: those who understand binary, and those who don't.

Dave Thomson wrote:
I've got a client who would like to read weigts from a Pelouze USB scale into LabVIEW. The scale comes with a driver that is based on the HID interface. There are several threads on the forums about talking to USB devices using USB RAW through VISA and on talking to HID devices, but I couldn't find any thread that claimed that the HID idea had been done successfully from LabVIEW.
Although it appears that one can disassociate the device from the HID driver and access it through USB RAW, we have decided not to go that route. (There are too many steps required to set up the scale in this manner. It wouldn't be appropriate for the eventual customer.) So calling HID.dll seems to be the only option. However, my reading of the threads seems to indicate that this is pretty complicated. Even if we understood the hid.dll interface, we still don't have any specs on how the scale uses the hid interface.
Has anyone succeeded in talking to a Pelouze scale from LabVIEW? Or any of the other numerous USB scales that use an HID interface?
Thanks,
DaveT
What do you mean when you say the scale comes with a driver that is based on the HID interface. Is that a DLL? Why would you then want to access HID.DLL instead of this specific driver DLL?
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Message Edited by rolfk on 08-25-2009 08:48 AM
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a division of Test & Measurement Solutions

Scale driver through USB

We are going to use a Mettler Toledo MS303S USB scale. Ohaus was recently bought by Mettler Toledo and I think that the product that we are using is a re-branded Ohaus scale. I am looking for an available driver. Any help?

There was a recent discussion on using a USB scale with LabVIEW. You should read that over to see if any of it applies to your device.
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Medir Flujo

Hola amigos, estoy haciendo un proyecto el cual consta medir el flujo de agua con Labview y una Ni DAQ, alguien tiene algun programa para poder hacer esto?
El sensor que uso lo anexo en una foto, el cable rojo es voltaje, el negro es tierra y el amarillo es señal.
Necesito poder visualizar los valores en un indicador numerico y en una grafica.

Saludos danieltuzc,
Gracias por utilizar los Foros de Discusión de National Instruments, como comenta Dennis_Knutson es necesario nos compartas un poco más de información sobre tu proyecto.
¿Cuál es el modelo de tu sensor?
¿Su salida es de voltaje, corriente, frecuencia, etc.?
¿Qué rangos de flujo deseas medir?
¿Qué precisión requieres para tu medición?
¿Qué dispositivo NI DAQ planeas utilizar?
Así bien, me tomé la libertad de realizar una búsqueda rápida basado en la imagen encontré que posiblemente se trate de un YF-S201, ¿podrías confirmarnos si este es el modelo de tu sensor? De ser así, lo más parecido que logré encontrar a un datasheet fue este documento. Te pido por favor verifiques que el modelo de tu sensor corresponda con el datasheet.
Así bien, según dicho documento la salida del sensor es una salida PWM, por lo que tendrás que medir la frecuencia del mismo para poder determinar el flujo que cruza a través del sensor, sin embargo según el documento no se trata de una relación totalmente lineal, por lo que te recomiendo utilizar una escala personalizada del tipo tabla, el documento especifica algunos valores conocidos para el sensor que podrás utilizar en tu escala personalizada.
Te comparto algunos links que pudiesen serte útil:
Frequency Measurements: How-To Guide:
http://www.ni.com/tutorial/7111/en/
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http://digital.ni.com/public.nsf/allkb/0A335655A8FF2C69862570BD0052DFDA
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http://digital.ni.com/public.nsf/allkb/F7DAE47B4408A86F8625765700767FCD
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http://zone.ni.com/reference/en-XX/help/370466V-01/mxcncpts/customscales/
Nuevamente, te pido nos confirmes si efectivamente este es el modelo de tu sensor, quedo al pendiente, saludos cordiales.
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National Instruments
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www.ni.com/soporte

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I have a plot as shown below, I would like the user to be able to click the scale button and the x scale precision should increase and come back to zero.
For example:
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I tried to use a shift register with for loop, but I do not see a way around it.
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Solved!
Go to Solution.
Attachments:
subtle event.vi ‏11 KB

I got the same weird buggy error!
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Pass entire list of XY graph properties from Main vi to Subvi XY Graph

Hello Everyone,
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Attachments:
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