3720 ACM Electronic Power Meter

To successfully communicate with the 3720 ACM Electronic Power Meter, you must:

Set Register Size to 32 bits in the ACM.

Set Invalid objects to Yes in the 3720 ACM.

Use Firmware Version 1.5 or later if you are going to read/write negative numbers.

The Modbus RTU Communications option supports reads and writes from the following memory types on a 3720 Electronic Power Meter operating in 32 bit register size mode:

32 bit Registers

4xxxxor 4xxxxx

32 bit Registers in mod 10000 format

D4xxxx or D4xxxxx

More information

Modbus RTU supported memory types.