Wiki » History » Revision 55
Revision 54 (Frédéric Blanc, 2024-06-10 16:22) → Revision 55/123 (Frédéric Blanc, 2024-06-10 16:22)
h1. Wiki
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{{toc}}
h2. Modbus / RS485 isolated
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https://arduino103.blogspot.com/2021/10/decoder-une-trame-rs485-loscilloscope.html
h3. non isoler
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h4. Fusibles réarmables
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h3. Texas Instruments ISOW14x2 Isolated RS-485 DC-DC Converter
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h3. ANALOG DEVICES LTM2881CV-5#PBF
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Transceiver, RS422, RS485, 20 Mbps, 1 Driver, 1 Récepteur, 4,5 à 5.5V, 0 à 70°C, LGA-32
Code Farnell 4023829
h3. ADM2865E Power Isolated, RS-485 Transceivers
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|Code Farnell|Référence Fabricant |Fabricant / Description|
|4023816 |ADM2865EBRNZ |ANALOG DEVICES Transceiver, RS422, RS485, 25 Mbps, 1 Driver, 1 Récepteur, 3 à 5.5V, -40 à 105°C, WSOIC-28|
|1456395 |SM712.TCT |SEMTECH Diode TVS, SM, Bidirectionelle, 12 V, 26 V, SOT-23, 3 Broche(s)|
|1515786 |BLM15HD182SN1D |MURATA Perle de ferrite, 0402 [1005 Metric], 1.8 kohm, 200 mA, BLM15H, 2.2 ohm, ± 25%|
|1867958 |08053D106KAT2A |KYOCERA AVX Condensateur céramique multicouche CMS, 10 µF, 25 V, 0805 [Métrique 2012], ± 10%, X5R|
|2443238 |BLM18HE601SN1D |MURATA Perle de ferrite, 0603 [1608 Metric], 600 ohm, 800 mA, BLM18H, 0.25 ohm, ± 25%|
h3. Module de communication d'isolation, ADUM3201 + B0505XT TTL à RS485
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*Attention RX sur TX*
h3. RS485 I2C
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h2. XY5005E
com le port 4 broches JST 1.25 ne semble pas avoir de TX, ni de RX. Il n'y a pas non plus de menu pour le chois de l'adressage
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h2. XY6015L Step-Down Regulated Power Supply
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µC AT32F421 ARM® Cortex®-M4 core
Ctrl EG1163S BUCK DC-DC de Rectification synchrone 300kHz
MOS NCE82H140
h3. Modbus
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voir documentation document:"protocol -english translation V1.2"
|function code|Definition|Operation (binary)|
|0x03|Read register data|Read data from one or more registers|
|0x06|Write a single register|Write a set of binary data to a single register|
|0x10|Write multiple registers|Write multiple sets of binary data to multiple registers|
|0x03 Read the function of the host format|
|address code|function code|Register start address |Number Number of register addresses n (1 ~ 32)|CRC Check code|
|1 byte|1 byte|2 byte|2 byte|2 byte|
/dev/ttyACM0 ou /dev/ttyUSB0
baud rate *115200*
Slave Address: 1..247 ( *0: broadcast* )
Function code: see later
Data: 0..252 byte(s)
*CRC16-MODBUS* : see https://crccalc.com/ for code.
https://github.com/LacobusVentura/MODBUS-CRC16
Modbus registers:
U_SET = 0
I_SET = 1
UOUT = 2
IOUT = 3
POWER = 4
UIN = 5
Ah = 6
PROTECT = 7 # not tested
Wh = 8
Time = 11
Temp = 13
Lock = 15
CV_CC = 17
ONOFF = 18
Celsius = 19
MODEL = 22 # ?
VERSION = 23 # ?
h3. test commande
sur /dev/ttyACM0
Broadcast Power ON
<pre><code class="shell">
echo -ne "\x00\x06\x00\x12\x00\x01\xE9\xDE" > /dev/ttyACM0
</code></pre>
Broadcast Power OFF
<pre><code class="shell">
echo -ne "\x00\x06\x00\x12\x00\x00\x28\x1E" > /dev/ttyACM0
</code></pre>
sur /dev/ttyUSB0
Broadcast Power ON
<pre><code class="shell">
echo -ne "\x00\x06\x00\x12\x00\x01\xE9\xDE" > /dev/ttyUSB0
</code></pre>
Broadcast Power OFF
<pre><code class="shell">
echo -ne "\x00\x06\x00\x12\x00\x00\x28\x1E" > /dev/ttyUSB0
</code></pre>
h3. notice
presser [SW] pendant 2s pour accéder aux paramètres
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h2. GUI Python
h3. venv — Création d'environnements virtuels
<pre><code class="shell">
$ python3 -m venv venv
</code></pre>
Pour activer l'environnement, exécutez
<pre><code class="shell">
source venv/bin/activate
</code></pre>
<pre><code class="shell">
. venv/bin/activate
</code></pre>
sous Windows
<pre><code class="shell">
env\Scripts\activate.bat
</code></pre>
Vous devrez « quitter » ou « désactiver » votre environnement virtuel à l'aide de la commande
<pre><code class="shell">
deactivate
</code></pre>
https://docs.python.org/fr/3/library/venv.html
h3. pyqt5
<pre><code class="shell">
pip3 install pyqt5 --config-settings --confirm-license= --verbose
</code></pre>
https://stackoverflow.com/questions/73714829/pip-install-pyqt5-it-cannot-go-on
h3. XY6015L_pyGUI
lancement de l'interface
<pre><code class="python">
python dps_GUI_program.py
</code></pre>
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configuration du port com
le port série peut être corrigé en modifiant le paramètre "port_set" dans "dps5005_limits.ini".
<pre><code class="shell">
[SectionZero]
The parameters below limit the code from incorrectly transmitting extreme values entered by the user:
if threshold exceeded value defaults to zero:
This file may be adapted for other versions of 'DPSxxxx' power supplies:
[SectionOne]
#leave empty "" for automatic port scanning or set serial port e.g. "/dev/cu.wchusbserial1410" or "/dev/ttyUSB0":
port_set: "/dev/ttyACM0" #
#The parameters below limit the code from incorrectly transmitting extreme values entered by the user:
#if threshold exceeded value defaults to zero:
...
</code></pre>
h2. Sources
https://www.circuitstate.com/tutorials/what-is-rs-485-how-to-use-max485-with-arduino-for-reliable-long-distance-serial-communication/
http://xj900diversion.free.fr/bus/I2C%20-%20RS-485%20adapter.htm
https://github.com/AntaresAdroit/RDTech_PS_Comm
https://github.com/lambcutlet/DPS5005_pyGUI
https://github.com/kbs3056/XY6015L_pyGUI