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ION 7500 / ION 7600 User’s Guide Using the Modbus RTU Protocol
Chapter 3 - Default Meter Functionality Page 71
Modbus Slave Module Parameter Mapping
The following tables show which measurements are provided by each of the
Modbus Slave modules. The source for each measurement is shown (“Source ION
Module”) so that you can easily delete parameters if you want to access different
data. Note that the Modbus Register remains the same if you link a different
parameter into one of the Modbus Slave module inputs (i.e. any value you link to
Modbus Slave module #1, Source Input #1 will use Modbus Register 40011).
Measurement Label Source ION Module Modbus Module and Input Number Modbus Register
L-N Voltage Phase A Vln a Power Meter Modbus Slave #1 – Source Input #1 40011
L-N Voltage Phase B Vln b Power Meter Modbus Slave #1 – Source Input #2 40012
L-N Voltage Phase C Vln c Power Meter Modbus Slave #1 – Source Input #3 40013
Average L-N Voltage Vln avg Power Meter Modbus Slave #1 – Source Input #4 40014
L-L Voltage AB Vll ab Power Meter Modbus Slave #1 – Source Input #5 40015
L-L Voltage BC Vll bc Power Meter Modbus Slave #1 – Source Input #6 40016
L-L Voltage CA Vll ca Power Meter Modbus Slave #1 – Source Input #7 40017
Average L-L Voltage Vll avg Power Meter Modbus Slave #1 – Source Input #8 40018
Phase A Current I a Power Meter Modbus Slave #1 – Source Input #9 40019
Phase B Current I b Power Meter Modbus Slave #1 – Source Input #10 40020
Phase C Current I c Power Meter Modbus Slave #1 – Source Input #11 40021
Average Current I avg Power Meter Modbus Slave #1 – Source Input #12 40022
Voltage Unbalance V unbal Power Meter Modbus Slave #1 – Source Input #13 40023
Current Unbalance I unbal Power Meter Modbus Slave #1 – Source Input #14 40024
Line Frequency Freq Power Meter Modbus Slave #1 – Source Input #15 40025
Neutral Current I 4 Power Meter Modbus Slave #1 – Source Input #16 40026
Measurement Label Source ION Module Modbus Module and Input Number Modbus Register
Phase A kW kW a Power Meter Modbus Slave #2 – Source Input #1 40027
Phase B kW kW b Power Meter Modbus Slave #2 – Source Input #2 40029
Phase C kW kW c Power Meter Modbus Slave #2 – Source Input #3 40031-40032
Total kW kW tot Power Meter Modbus Slave #2 – Source Input #4 40033-40034
Phase A kVAR kVAR a Power Meter Modbus Slave #2 – Source Input #5 40035-40036
Phase B kVAR kVAR b Power Meter Modbus Slave #2 – Source Input #6 40037-40038
Phase C kVAR kVAR c Power Meter Modbus Slave #2 – Source Input #7 40039-40040
Total kVAR kVAR tot Power Meter Modbus Slave #2 – Source Input #8 40041-40042
Phase A kVA kVA a Power Meter Modbus Slave #2 – Source Input #9 40043-40044
Phase B kVA kVA b Power Meter Modbus Slave #2 – Source Input #10 40045-40046