Manual

Rockwell Automation Publication 1425-UM001A-EN-P - January 2012 35

Chapter 3

Software Interface

Introduction

This chapter describes the parameters and the registers available for software

development. Data is presented using Modbus RTU protocol in Holding

Registers. Modbus register addresses listed in these tables are zero-based. Modbus

client applications may require that you add a constant value such as 40,000 to

the Modbus register address. RSEnergyMetrix software uses the basic zero-based

PowerMonitor W250 Modbus

The following table reports Modbus registers specific to PowerMonitor W250

products.

Table 14 - PowerMonitor W250 Modbus Register Map

Modbus Register Description Type/Length Storage Unit Access

0 Real Energy Consumption, Phase 1 MSW S32 NV Wh R

1 Real Energy Consumption, Phase 1 LSW NV Wh R

2 Real Energy Consumption, Phase 2 MSW S32 NV Wh R

3 Real Energy Consumption, Phase 2 LSW NV Wh R

4 Real Energy Consumption, Phase 3 MSW S32 NV Wh R

5 Real Energy Consumption, Phase 3 LSW NV Wh R

6 Real Energy Consumption, Phase Sum MSW S32 NV Wh R

7 Real Energy Consumption, Phase Sum LSW NV Wh R

8 Reactive Energy Consumption, Phase 1 MSW S32 NV VARh R

9 Reactive Energy Consumption, Phase 1 LSW NV VARh R

10 Reactive Energy Consumption, Phase 2 MSW S32 NV VARh R

11 Reactive Energy Consumption, Phase 2 LSW NV VARh R

12 Reactive Energy Consumption, Phase 3 MSW S32 NV VARh R

13 Reactive Energy Consumption, Phase 3 LSW NV VARh R

14 Reactive Energy Consumption, Phase Sum MSW S32 NV VARh R

15 Reactive Energy Consumption, Phase Sum LSW NV VARh R

16 Apparent Energy Consumption, Phase 1 MSW U32 NV VAh R

17 Apparent Energy Consumption, Phase 1 LSW NV VAh R

18 Apparent Energy Consumption, Phase 2 MSW U32 NV VAh R

19 Apparent Energy Consumption, Phase 2 LSW NV VAh R

20 Apparent Energy Consumption, Phase 3 MSW U32 NV VAh R

21 Apparent Energy Consumption, Phase 3 LSW NV VAh R