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RS485 Serial HELP for Low-level Read Queries

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Hi,

 

I am trying to communication with some lab equipement (Ebara Turbopump) over rs485. Now I have a Blastronix 2 port RS485 PCI board connect with cabiling to the equipement. But when I try and use NI-VISA to communication, the read times out, which is not particularly useful information because I don't know what part of my query is wrong then.

 

Below, I've posted some images from their communication protocol, but I am very confused as to how to translate this into a Labview VI. So far I've tried using a String Constant with the example 8.1 (last image, with my slave ID: 001) but I get nothing. I've tried it in both ASCII and Hex with a carriage return at the end.

 

Any help is very appreciated!!

 


 

Screen Shot 2015-05-25 at 5.45.43 PM.pngScreen Shot 2015-05-25 at 5.46.06 PM.png

Screen Shot 2015-05-25 at 5.46.16 PM.pngScreen Shot 2015-05-25 at 5.55.24 PM.png


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