doubt on data convertions

[shjukheter]

Hi,

      I have been developing application in labview and following the other's implementaion by some one. I have attched the picture others data transactions and i am not undestand what "*" represents there. I have circled black color "representing command code" and read value in RED color with star at ending. Can any one please help me what that star represents.

Thank you.

[Ashwin_S]

I can't see   ' * '   in your attached image,

AshwiN,

[TerraNova]

Maybe received string in PMBus Address ends up with * symbol?

[shjukheter]

OH my dear, I have attached the wrong picture. You can find star symbol in the below picture. Sorry, for your inconvenience.

[ABCPrograms]

I think it's the end character of the reply.

[TerraNova]

Yes, looks like asteriks is the end of the reply.

What device do You communicate with?

[shjukheter]

At the moment, the device is NDM1-12-120 and I am monitoring the device with their provided GUI. In part of that, I just check the data transactions with I2C snippet and i save the given document. In that, they are sending 3.3 or 54.3(just examples) in two bytes. Indeed they are using PMBus protocol with linear format. You cab find the exact converstions at http://pmbus.org/docs/Using_The_PMBus_20051012.pdf (see from 67 slide). I am not undestand how they are converting. Please some can explaine me. The same thing i am using in labview.

[TerraNova]

Look into "String/Number Conversion" palette.

Attach ouput of "VISA Read.vi" with last character deleted ("*") to the "Number To Fractional/Exponential/Engineering string.vi" (one of these three - parameters depend upon protocol).

That's all You need, If I cought You right.

[shjukheter]

No, I don't think the given functions are not useful for me. I just need to read the two data byte value which is in hex. For instance, i want to read C34D(in hex) from read visa and after i want convert that value to 3.3volts according to the given formula and method in the following document. C34D is come from convertion of binary value in the document. I don't know how to do this. can you help me.

[shjukheter]

I forgotten the document and here it is.