Ceiec Electric Technology
38
Chapter 5 Modbus Register Map
This chapter provides a complete description of the Modbus register map (Protocol Version 6.0) for
the PMC-53 series power meter to facilitate the development of 3
rd
party communications driver for
accessing information on the PMC-53. In general, the registers on the PMC-53 are implemented as
Modbus Holding Registers (4XXXXX) with the exception of the DO Control registers, which are
implemented as “Write Only” Modbus Coil Registers (0XXXXX). The PMC-53 supports 6-digit
addressing scheme and 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 register addresses are listed without the Modbus Address Prefix, 4 for Holding Registers and 0
for Coil Registers. Therefore, it’s not necessary to subtract 400001 for Holding Registers or 000001
for Coil Registers to obtain the starting address number. For a complete Modbus Protocol
Specification, please visit http://www.modbus.org.
5.1 Basic Measurements
To Next Page
Loading...
