Recent content by vizier87

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    Making sense of a Modbus register

    Hi Jschulze, Thanks for the recommendation on the softwares! I'll look into it for sure. Oh wow you found the manual! Yes it is the very same one with a hardcopy I have right now. Again, thanks! But how do I explain getting the same 10 readings despite changing the "begin" addresses? Does...
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    Making sense of a Modbus register

    Hi everyone, many thanks for the replies. The device I'm trying to read from is an Acrel ADF400L. Here's the manual but I'm afraid that's all they have. Right now, I think something not right. Here are the values if I keyed in 0 to 10 as follows: However, if I keyed in 768 (as per jschulze's...
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    Making sense of a Modbus register

    Hi everyone, I must thank you tremendously for your contributions. I wasn't expecting any further replies, but this is totally a nice surprise! Ok lemme ruminate on these posts and I'll get back here ASAP. Vizier87
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    Making sense of a Modbus register

    I see. I think the web interface (which is supposed to be the front end to this gizmo) has some sort of multiplier/coefficient which then translates into domestic voltage values. At this point I probably have to map the readings and compare them with the corresponding values from the web...
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    Making sense of a Modbus register

    Thanks a bunch for the clarification. Is there a way I can actually invoke the client to send the address as well? Does the Modbus protocol support this?
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    Making sense of a Modbus register

    Bumping... Anyone?
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    Making sense of a Modbus register

    Hi guys, I have kind of a noob question here, hope you guys don't mind. I managed to extract some data using a VB.NET script from modbus device, where the data is just unsigned integers. I used the "read holding registers" function in VB.NET to read the first 10 values. Here's a snippet...
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