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RS485/MODBUS Communication with JLD416PVA Power Meter

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RS485/MODBUS Communication with JLD416PVA Power Meter


W. (view profile)


04 Apr 2012 (Updated )

Reads power, voltage and current data via RS485/MODBUS from a JLD416PVA meter.

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Communicates with JLD416PVA meter over MODBUS RTU. Sends one read command to interrogate all six holding registers of the unit. Also parses the response into voltage, current and power with meaningful units. Includes a sample script to repeatedly poll the device for the measurements. Screenshot was developed measuring a 50/100/150 W three-way lamp.


Append Crc For Modbus and Modbus Rs232 Ascii Communication Functions inspired this file.

Required Products Instrument Control Toolbox
MATLAB release MATLAB 7.11 (R2010b)
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05 Apr 2012 1.2

Corrected model number in tag

05 Apr 2012 1.5


05 Apr 2012 1.6

More fixing of part numbers.

09 Apr 2012 1.7

Still trying to fix Model numbers in tags.

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