Why do I get zero or no response for the energy register but current and voltage work?

The Energy Active Total Import register at address 3203 uses uint64 format, which spans four consecutive registers. Make sure the Modbus client configuration supports 64-bit integer reads. The template handles this automatically, but custom polling tools may not.

What Schneider gateway do I need between the PowerTag sensor and the ModbusCloud gateway?

PowerTag flex sensors communicate wirelessly and require a Schneider intermediary such as the PowerTag Link or EcoStruxure Panel Server. This device exposes the sensor data as Modbus TCP registers on the local network.

Can I monitor multiple PowerTag sensors with a single template?

Each PowerTag sensor typically has its own Modbus unit ID on the Schneider gateway. You need to create a separate device instance in ModbusCloud for each sensor, using the same template but a different unit ID.

What baud rate or serial settings do I need?

This template uses Modbus TCP, so serial settings like baud rate do not apply. Ensure the Schneider gateway and the ModbusCloud gateway are on the same IP network and that TCP port 502 is accessible.

Free Modbus template: Schneider PowerTag flex-series (1-phase)

This template reads single-phase energy data from Schneider Electric PowerTag flex-series sensors via Modbus TCP. It retrieves current, voltage, active power, and total imported energy. No control functions are included.

Name	Address	Function	Type	Unit	Access
Current A	2999	FC03	float32	A	R
Voltage A-N	3027	FC03	float32	V	R
Active Power A	3053	FC03	float32	W	R
Energy Active Total Import	3203	FC03	uint64	kWh	R

Schneider PowerTag flex-series (1-phase)

Overview

Key readings

Use cases

Installation

Things to watch for

Registers (4)

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