⚡ Modbus RTU Integration Guide

GrupArge RKR

GrupArge RKR Reactive Power Control Relay — Real-time power, energy and alarm monitoring via Modbus RTU protocol with Argus EMS.

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Monitored Parameters

What Data Do We Read?

Active Energy IndexkWh

Inductive Energy IndexkVArh

Capacitive Energy IndexkVArh

Inductive Ratio%

Capacitive Ratio%

Power Factor (cos φ)-

Capacitor Step Stateson/off

Phase VoltagesV

Phase CurrentsA

THD%

Connection

How to Connect to Argus EMS

Physical Connection

Connect the device to the RS-485 or Ethernet network. Configure Slave ID and baud rate from the device front panel or web interface.

Add Device in Argus

From the Argus web panel click "New Device". Select GrupArge RKR from the template list — the register map loads automatically.

Live Monitoring

The Field Agent tests the connection; the first reading appears on the dashboard within 60 seconds. Alarm thresholds are configured.

Monitored Metrics

What Can You Monitor?

Active / inductive / capacitive energy indexes
Cumulative inductive and capacitive ratios tracked against EPDK thresholds
Early-warning alarm as the penalty threshold approaches
Capacitor step states and health tracking
Power factor (cos φ) monitoring
Visibility of THD's impact on compensation
Phase voltages and currents
Remote supervision of the compensation panel

Combined with Compensation Monitoring

The RKR integration is the foundation of the compensation monitoring solution, together with step health, THD impact and the pre-penalty alarm chain.

Compensation Monitoring →

Also: Argus EMS Platform · Reactive Penalty Prevention

FAQ

Frequently Asked Questions

How does the GrupArge RKR connect to Argus EMS?

The RKR relay offers Modbus RTU (RS-485) communication; the line is converted to TCP via a Modbus gateway and connected to the Field Agent. The ready RKR template in Argus maps index, ratio and step data automatically.

How does reactive penalty tracking work?

The RKR's energy indexes are read regularly; the month-to-date cumulative inductive/capacitive ratio is continuously compared against EPDK thresholds (20% inductive, 15% capacitive). As the threshold approaches, an email warning is sent before the bill is issued.

Can a capacitor step fault be detected remotely?

Yes. Step states are monitored; steps that never engage or stay permanently engaged are signs of capacitor ageing/failure and appear in the report. The field team knows the faulty step without visiting the panel.

Do I need extra hardware if I already have an RKR relay?

No. The existing RKR relay in the field is read directly; no additional measurement device is needed. Routing the RS-485 line to the gateway is sufficient.

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Integrate Into Your System

Request a demo; our experts will manage the GrupArge RKR integration process.