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08-17-2017 04:01 PM
HI
I have a Modbus RTU program which is over RS485 it communicates reads/write
now I want to graph 5 input registers on my front panel
I am new to LabView can anyone give me some example or a simple way to do it
thank you
regards
etesam
Solved! Go to Solution.
08-10-2017 03:56 PM
hi
I am trying to communicate to an inverter with Modbus RTU over rs485 and I got to communicate to it and read the registers using the Modbus program example I got from the forum I am new to lab view
I am new to lab view
I want to read/write to the registers and I am unable to write can any one please suggest me with the writing part of the Modbus registers
08-17-2017 05:31 PM
Since it is 5 different registers of a single value, you don't want to send that 1-D array directly to the waveform chart as it will interpret that as 5 samples of a single channel. So put a Build Array on that wire to turn it into a 2-D array to send to the chart.
If you want it on 5 different graphs,, then you need to use index array to break them out. (In which case you should also look at the online LabVIEW tutorials)
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08-25-2017 03:36 PM
that doesn't work
08-25-2017 04:09 PM
What doesn't work?
Attach your code. Give some detail as to how it is not working and how it is different from how you expect it to work.
If your car broke down, you wouldn't call the repair shop and just say "it doesn't work" and expect them to tell you how to fix it over the phone.
08-25-2017 05:35 PM
@Etesam23 wrote:
that doesn't work
It is impossible to tell exactly what you are doing from va picture of part of the code.
You need to know which U16 element is what register. And the scaling of each register. The device manual would be a great help if you read it. Then just wire those scaled values to a CHART.