Fludia FM432 Manuale utente

FM432 –User Guide

LoRaWAN IoT sensors for remote monitoring

Document Ref FLD10068 version 1.1.0

Product references:

FM432e: electricity meter optical reading

Ref: FM432e_nc_1mn, FM432e_nc_10mn, FM432e_nc_15mn

FM432ir: electricity infrared meter optical reading (SML protocol)

Ref: FM432ir_nc_1mn, FM432ir_nc_15mn

FM432g: gas meter optical reading (ATEX)

Ref: FM432g_nc_10mn, FM432g_nc_15mn

FM432p-a: pulse reading (ATEX)

Ref: FM432p-a_nc_1mn, FM432p-a_nc_10mn, FM432p-a_nc_15mn

FM432p-n: pulse reading (non-ATEX)

Ref: FM432p-n_nc_1mn, FM432p-n_nc_10mn, FM432p-n_nc_15mn

FM432t: temperature measurement

Ref: FM432t_1mn, FM432t_10mn, FM432t_15mn

Overview Page 2 / 76

Firmware versions

This documentation refers specifically to products including the following firmware versions. In most cases,

data formats are the same for previous versions, but if something doesn’t seem right, do not hesitate to

contact support@fludia.com

FM432e

Optical head: FM210em_v5.4 (FM432e_nc_1mn), FM210em_v4.6 (FM432e_nc_10mn, FM432e_nc_15mn)

Radio/battery box: BPR07_V3.2.7

FM432ir

Optical head: FM210ir_v1.8 (FM432ir_nc_1mn), FM210ir_v1.6 (FM432ir_nc_15mn)

Radio/battery box: BPR07_V3.2.7

FM432g

Optical head: FM210g_v3.2

Radio/battery box: BPR07_v3.2.9

FM432p

Radio/battery box: BPR07_v3.3.1 (FM432p-a_nc_1mn, FM432p-n_nc_1mn), BPR07_v3.3.1 (FM432p-

a_nc_10mn, FM432p-a_nc_15mn, FM432p-n_nc_10mn, FM432p-n_nc_15mn)

FM432t

Radio/battery box: BPR07_v5.0.2

Revision history

Version

Notes

Date

1.0.1

New doc replacing ref FLD9492 (FM432e User Guide EN_v1.2.1), ref FLD9177 (FM432g

User Guide EN_v1.2.1), ref FLD9899 (FM432p User Guide EN_v1.2.2), and a series of

documents related to message decoding and data collect API

2022-05-16

1.0.2

Corrections related to T1 message headers; Additional code examples.

2022-05-25

1.0.3

Completion of FM432t sections

2022-05-30

1.0.4

Adding FM432ir code examples

2022-05-31

1.0.5

FM432 instead of FM232 in the illustration (overview chapter)

2022-06-01

1.0.6

Firmware version FM210ir_v1.6 replaces v1.2. Clarification (chapter 7.1): message

contains 15 or 20 values depending on the type of meter.

2022-08-24

1.0.7

A Byte was missing in the T1 description for FM432ir (chapters 7.2 and 8.2)

2022-10-11

1.0.8

Adding JavaScript code examples for FM432e, FM432ir, FM432g, FM432p and FM432t.

1.1.0

Correcting php code for FM432t. Technical messages headers. New FW versions for

BPR07

2023-06-07

 
 
Overview Page 3 / 76 
Table of Contents 
Overview.........................................................................................................................................5 
Installing the sensors and joining the LoRaWAN Network ............................................................6 
1 Installing the FM432e (optical reading of electricity meters) ........................................................... 6 
2 Installing the FM432ir (optical reading of electricity meters in Germany) ....................................... 8 
3 Installing the FM432g (optical reading of gas meters) .................................................................... 10 
4 Installing the FM432p (detecting meter pulse outputs: gas, water, elec, heat…)........................... 11 
5 Installing the FM432t (measuring temperature)............................................................................. 12 
Replacing batteries in a sensor ....................................................................................................13 
Removing the batteries to make a sensor forget its join.............................................................13 
Decoding FM432e_nc_1mn messages.........................................................................................14 
1 Types of messages........................................................................................................................... 14 
2 Data message (T1) structure............................................................................................................ 14 
3 Service message (T2) structure........................................................................................................ 16 
4 Code examples................................................................................................................................. 17 
Decoding FM432e_nc_10mn and FM432e_nc_15mn messages ................................................19 
1 Types of messages........................................................................................................................... 19 
2 Data message (T1) structure............................................................................................................ 19 
3 Service message (T2) structure........................................................................................................ 21 
4 Technical message #1 (TT1) structure ............................................................................................. 21 
5 Technical message #2 (TT2) structure ............................................................................................. 22 
6 Code examples................................................................................................................................. 22 
Decoding FM432ir_nc_1mn messages ........................................................................................25 
1 Types of messages........................................................................................................................... 25 
2 Data message (T1) structure in the case of an infrared meter (mME)............................................ 25 
3 Data message (T1) structure in the case of an electromechanical meter....................................... 27 
4 Service message (T2) structure in the case of an infrared meter (mME)........................................ 28 
5 Service message (T2) structure in the case of an electromechanical meter................................... 30 
6 Code examples................................................................................................................................. 31 
Decoding FM432ir_nc_15mn.......................................................................................................35 
1 Types of messages........................................................................................................................... 35 
2 Data message (T1) structure in the case of an infrared meter (mME)............................................ 35 
3 Data message (T1) structure in the case of an electromechanical meter....................................... 37 
4 Service message (T2) structure in the case of an infrared meter (mME)........................................ 38 
5 Service message (T2) structure in the case of an electromechanical meter................................... 40 
6 Code examples................................................................................................................................. 41 
Decoding FM432g_nc_10mn et FM432g_nc_15mn....................................................................45 

 
 
Overview Page 4 / 76 
1 Types of messages........................................................................................................................... 45 
2 Data message (T1) structure............................................................................................................ 45 
3 Service message (T2) structure........................................................................................................ 46 
4 Technical message (TT1) structure .................................................................................................. 47 
5 Code examples................................................................................................................................. 48 
Decoding FM432p-(a n)_nc_1mn...............................................................................................51 
1 Types of messages........................................................................................................................... 51 
2 Data message (T1) structure............................................................................................................ 51 
3 Service message (T2) structure........................................................................................................ 52 
4 Code examples................................................................................................................................. 53 
Decoding FM432p-(a n)_nc_10mn and FM432p-(a n)_nc_15mn ............................................56 
1 Types of messages........................................................................................................................... 56 
2 Data message (T1) structure............................................................................................................ 56 
3 Service message (T2) structure........................................................................................................ 57 
4 Code examples................................................................................................................................. 58 
Decoding FM432t_nc_1mn..........................................................................................................61 
1 Types of messages........................................................................................................................... 61 
2 Data message (T1) structure............................................................................................................ 61 
3 Service message (T2) structure........................................................................................................ 62 
4 Code examples................................................................................................................................. 63 
Decoding FM432t_nc_10mn and FM432t_nc_15mn ..................................................................65 
1 Types of messages........................................................................................................................... 65 
2 Data message (T1) structure............................................................................................................ 65 
3 Service message (T2) structure........................................................................................................ 66 
4 Code examples................................................................................................................................. 68 
Accessing the dashboard to check communication and data......................................................70 
Retrieving data from the server with the API ..............................................................................71 
1 Device list request ........................................................................................................................... 72 
2 Interval data request ....................................................................................................................... 73 
3 Index data........................................................................................................................................ 74 
4 Message list ..................................................................................................................................... 75 
Contact .........................................................................................................................................75 
Annex A: product references and what they mean .....................................................................76 
 
 

Overview Page 5 / 76

1. Overview

The basic principle of this remote monitoring solution is to have IoT sensors (FM432x on the graph) using

LoRa long range radio to transfer measurement messages to a LoRaWAN Network.

The different types of sensors available are:

- FM432e: optical reading of electricity meters (detecting rotating disk, or blinking light)

- FM432ir: optical reading of electricity meters in Germany (detecting rotating disk, or infrared port

with SML protocol)

- FM432g: optical reading of gas meters (detecting digit rotation)

- FM432p: detecting pulse outputs of some meters (gas, water, electricity, heat…)

- FM432t: measuring temperature

The installation process consists of two main steps:

1. Installing the sensors: sticking the optical sensor to the existing meter, or connecting the wires, or

just positioning the box, depending on the type of sensor.

2. Joining the LoRaWAN Network: starting up the sensor so that it sends join requests to the

LoRaWAN Network (on which it must have been previously registered)

Retrieving the data can be done in one of three ways:

- Directly decoding the messages received by the LoRaWAN Network

- Connecting to the server’s API https://fm430-api.fludia.com/v1/API/ (if a callback has been set up

between the LoRaWAN Network and Fludia data server)

- Selecting data and downloading related files from the dashboard (if a callback has been set up

between the LoRaWAN Network and Fludia data server)

Installing the sensors and joining the LoRaWAN Network Page 6 / 76

2. Installing the sensors and joining the LoRaWAN Network

2.1 Installing the FM432e (optical reading of electricity meters)

First identify the type of meter you want to measure. It could be either an electronic electricity meter (with a

blinking light) or an electromechanical electricity meter (with a rotating disk).

In case the white cable is plugged in the radio/battery box, it is recommended to unplug it (and leave only

the optical side connected) before proceeding with the installation.

If it is an electronic meter, you must position the optical head switch on B,

and if it is an electromechanical meter, you must position the switch on A:

If it is an electronic meter, stick the adhesive plastic mount on the

meter in front of the meter blinking light (aim through the hole)

Then, position the optical head on top of the

plastic mount and tight the black screw.

If it is an electromechanical meter, make sure the optical head

is properly attached to the adhesive plastic mount with the help of the black screw:

Stick the system on the meter glass panel, making sure the two arrows are perfectly aligned with the meter

disk (face the meter and keep your eyes at disc level for better result):

If the arrows are not completely lined up with the disc, loosen the screw, adjust

position, and tighten the screw

Installing the sensors and joining the LoRaWAN Network Page 7 / 76

Connect the white cable between the optical head and the FM432 battery/radio box.

In the case of an electromechanical meter, make sure the optical head is still perfectly aligned with the disk.

The FM432e starts measuring automatically.

The optical head LEDs (lights) should blink this way:

1. Calibration: red LED blinks for 20 seconds.

2. Validation: green LED blinks every time the meter light blinks (electronic meter) or every time the

disk mark (black or red) comes in front of the sensor (electromechanical meter).

3. After 3 minutes, the green light stops completely to avoid wasting battery load.

The LEDs on the radio/battery box show the progress of the join process:

- Red and Green LED blinking together (join in progress)

- Green LED blinking alone (join successful)

- Red LED blinking alone (join failed)

If the LEDs on the radio/battery side blink green twice, red once, green twice, red once

and so on, it means that the sensor has previously joined a LoRaWAN Network (but not

necessarily the one you want your sensor to join now). If you want to make sure, remove

the batteries, wait for 10 seconds, and put them back on. It resets the join sequence so

that your sensor can join from a fresh start.

Installing the sensors and joining the LoRaWAN Network Page 8 / 76

2.2 Installing the FM432ir (optical reading of electricity meters in Germany)

First identify the type of meter you want to measure. It could be either an mME electricity meter (with an

infrared port supporting SML protocol) or an electromechanical electricity meter (with a rotating disk).

In case the white cable is plugged in the radio/battery box, it is recommended to unplug it (and leave only

the optical side connected) before proceeding with the installation.

If it is an mME meter, you must position the optical head switch on B, and if

it is an electromechanical meter, you must position the switch on A:

If it is an mME meter, stick the adhesive plastic mount on the meter in front

of the meter infrared receiving LED (aim through the hole)

Then, fasten the optical head to the plastic mount.

Use the black screw to tighten the optical head to the mount.

If it is an electromechanical meter, make sure the optical head

is properly attached to the adhesive plastic mount with the help of the black screw:

Stick the system on the meter glass panel, making sure the two arrows are perfectly aligned with the meter

disk (face the meter and keep your eyes at disc level for better result):

If the arrows are not completely lined up with the disc, loosen the screw, adjust

position, and tighten the screw.

Installing the sensors and joining the LoRaWAN Network Page 9 / 76

Connect the white cable between the optical head and the FM432 battery/radio box.

In the case of an electromechanical meter, make sure the optical head is still perfectly aligned with the disk.

The FM432ir starts measuring automatically.

The optical head LEDs (lights) should blink this way:

1. Calibration: red LED blinks for 20 seconds.

2. Validation: green LED each time the disk mark (black or red) comes in front of the sensor

(electromechanical meter) or each time a correct infrared signal is detected (mME meter).

3. The green light stops completely to avoid wasting battery load (after 3 minutes for electromechanical,

after 1 minute for mME).

The LEDs on the radio/battery box show the progress of the join process:

- Red and Green LED blinking together (join in progress)

- Green LED blinking alone (join successful)

- Red LED blinking alone (join failed)

If the LEDs on the radio/battery side blink green twice, red once, green twice, red once

and so on, it means that the sensor has previously joined a LoRaWAN Network (but not

necessarily the one you want your sensor to join now). If you want to make sure, remove

the batteries, wait for 10 seconds, and put them back on. It resets the join sequence so

that your sensor can join from a fresh start.

Installing the sensors and joining the LoRaWAN Network Page 10 / 76

2.3 Installing the FM432g (optical reading of gas meters)

Clean the meter window.

Paste the holder on the glass of the meter, in front of the prior-to-last digit of

the index, using the provided adhesive (already fixed on the holder).

>> Make sure the arrows of the holder are perfectly at mid-height of the

frame.

>> In some cases, the digit can be higher or lower than normal. Position the

arrows at mid-height of the frame, not at mid-height of the digit.

Clip the optical sensor to the holder.

Connect the white cable between the optical head and the FM432

battery/radio box.

The FM432g starts measuring automatically.

The optical head red LED (light) should blink for 20 seconds.

The LEDs on the radio/battery box show the progress of the join process:

- Red and Green LED blinking together (join in progress)

- Green LED blinking alone (join successful)

- Red LED blinking alone (join failed)

If the LEDs on the radio/battery side blink green twice, red once, green twice, red once

and so on, it means that the sensor has previously joined a LoRaWAN Network (but not

necessarily the one you want your sensor to join now). If you want to make sure, remove

the batteries, wait for 10 seconds, and put them back on. It resets the join sequence so

that your sensor can join from a fresh start.

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