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M4M Network Analyzer Modbus Communication Protocol Manual

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This document provides a comprehensive guide to the Modbus communication protocol for M4M network analyzers, covering both Modbus RTU (RS-485) and Modbus TCP/IP implementations. It details supported function codes, Modbus frame structure, and extensive mapping tables for features such as energy snapshots, load profiles, alarms, inputs/outputs, tariff, and audit logs.

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