All register values read as zero or NaN. What is wrong?

The Aplus only outputs valid float values when a measurement precondition is met. If voltage inputs are not connected or the system type is misconfigured in CB-Manager, the device substitutes a default value. Verify that the correct wiring system (e.g. three-phase four-wire) is selected in the device parameters and that voltage inputs are live.

Values look correct in magnitude but are clearly wrong in phase assignment.

The Aplus float32 registers use IEEE 754 encoding spanning two consecutive 16-bit holding registers, with the high word first. If your Modbus master reads word order incorrectly, per-phase values will be swapped or garbled. Confirm your gateway uses big-endian (high-word-first) word order for float32 register pairs.

The Gateway connects but no data appears after importing the template.

Check that the Modbus address set on the Aplus matches the unit ID in your portal, that baud rate and parity on the device and gateway agree, and that supply resistors are present at the bus master end. Up to 32 devices can share one RS485 bus, but each must have a unique address and identical communication settings.

Reactive power per-phase registers show units of W in the template. Is that correct?

The per-phase reactive power registers (reactive_power_l1, L2, L3) are listed with unit W in the template input but represent reactive power quantities. Treat them as var for display purposes. The total reactive_power register is correctly labelled var. Cross-check with the manufacturer register map if your installation requires certified metering accuracy.

Free Modbus template: Camillebauer Aplus

Name: Camillebauer Aplus
Brand: Camillebauer
SKU: a5813ed6-04e7-403a-acd8-d8546ce5929f

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Free Modbus template: Camillebauer Aplus | ModbusCloud

Registers (17)

17 read / 0 write

Name	Address	Function	Type	Unit	Access
voltage Mean three-phase RMS voltage at the meter input, in volts.	99	FC03	float32	V	R
voltage_l1 Phase L1 RMS voltage relative to neutral, in volts.	101	FC03	float32	V	R
voltage_l2 Phase L2 RMS voltage relative to neutral, in volts.	103	FC03	float32	V	R
voltage_l3 Phase L3 RMS voltage relative to neutral, in volts.	105	FC03	float32	V	R
current Mean three-phase RMS current, in amperes.	115	FC03	float32	A	R
current_l1 Phase L1 RMS current, in amperes.	117	FC03	float32	A	R
current_l2 Phase L2 RMS current, in amperes.	119	FC03	float32	A	R
current_l3 Phase L3 RMS current, in amperes.	121	FC03	float32	A	R
active_power Total three-phase active power, in watts.	133	FC03	float32	W	R
active_power_l1 Phase L1 active power, in watts.	135	FC03	float32	W	R
active_power_l2 Phase L2 active power, in watts.	137	FC03	float32	W	R
active_power_l3 Phase L3 active power, in watts.	139	FC03	float32	W	R
reactive_power Total three-phase reactive power, in var.	141	FC03	float32	var	R
reactive_power_l1 Phase L1 reactive power component, in var.	143	FC03	float32	W	R
reactive_power_l2 Phase L2 reactive power component, in var.	145	FC03	float32	W	R
reactive_power_l3 Phase L3 reactive power component, in var.	147	FC03	float32	W	R
frequency Grid frequency at the measurement point, in hertz.	157	FC03	float32	Hz	R

Camillebauer Aplus

Overview

Use cases

Installation

Things to watch for

Registers (17)

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