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Where can I find the Modbus Map and how to set the Modbus protocol for ION Meters?

Issue
A user would like to read values from an ION meter via Modbus register reads. 

Product Line
ION 7300, 7500, 7600, 7550, 7650, 8300, 8400, 8500, 8600, 8650, series meters

Environment
Modbus register list

Cause
When it is necessary to use Modbus communications to read values from the ION meter. 

Resolution
Attached is the default register map for the following meters: ION 7300, 7500, 7600, 7550, 7650, 8300, 8400, 8500, 8600, 8650. Please note that this is a default map only and can be modified using the ION programming environment on-board the meter. For additional information on modifying the default modbus registers, please see the attached Modbus and ION Technology document. 

For specific instructions on how to read energy values, refer to KB FA233789

For the modbus maps for the PM8000 and ION7400 series meters, refer to KB FA244203
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