ION 7500 / ION 7600 User’s GuideUsing the Modbus RTU Protocol

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

 

 

 

 

 

Chapter 3 - Default Meter Functionality

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Multi-Tech Systems 7500, 7600 manual Modbus Slave Module Parameter Mapping
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