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What is the Energy rollover value for CM4/CM3/PM8 meters?

User wants to know what the maximum energy reading the meter can report/send through Modbus communication and the Energy rollover value

Product Line:
CM4000 series meters
CM3000 series meters
PM800 series meters

Modbus communcation

The energy readings for those meters are stored in blocks of 4 registers for each reading (e.g. kWh in, kWh out, kVarh, etc)
Those registers type is "MOD10" and the maximum value that can be stored in each register is 9,999
To learn more about "MOD10" registers and how to convert them to decimal, see

The Energy rollover value is 1e+16

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