socomec Green Power 2.0 - Page 5

4. 1. gEnEraL PUrPosE
This document provides required information of the MODBUS protocol serial link or Ethernet network.
Before connecting a supervision equipment or BMS system (Building management system) to the UPS, it is neces-
sary to install and set up the serial interface or network congurations in the case of a network connection..
4. 2. modbUs ProtocoL
This document does not explain the MODBUS protocol management. Please refer on
www.modbus.org web site for more information.
The DELPHYS Green Power MODBUS uses the following functions :
– function 3 for reading Input Registers (16 bits),
– function 6 for writing single Registers (to control DELPHYS Green Power).
The data eld is composed of 1 word, dened by a MSB (most signicant byte) and a LSB (lowest signicant byte),
and displayed in the following order on the serial link.
1 WORD DATA
b7 MSB b0 b7 LSB b0
b15 b0
4. 3. data dEcoding
Status and alarms Information
This information are coding in bit. This means that 1 word denes 16 information. If the related bit is set to 1, this
information is active or true.
Measurements and counters data
1 word denes a measurement or a counter. Some values are numeric decimal signed or unsigned (0 to 65535 or
from -32767 to 32767), or in hexadecimal (0x0000 to 0xFFFF).
4. INTRODUCTION
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Delphys green power - Ref.:
IOMDGPJB0910-GB_11
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