CET Electric Technology
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Chapter 5 Modbus Register Map
This chapter provides a complete description of the Modbus register map (Protocol Versions 1.4 and
above) for the PMC-D726M Digital Multifunction Meter to facilitate the development of 3
rd
party
communications driver for accessing information on the PMC-D726M. For a complete Modbus Protocol
Specification, please visit www.modbus.org.
The PMC-D726M supports the following Modbus functions:
1) Read Holding Registers (Function Code 0x03)
2) Force Single Coil (Function Code 0x05)
3) Preset Multiple Registers (Function Code 0x10)
The following table provides a description of the different data formats used for the Modbus registers.
The PMC-D726M uses the Big Endian byte ordering system.
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