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Frédéric Blanc, 2024-06-11 08:53
Wiki¶
- Table of contents
- Wiki
Modbus / RS485 isolated¶
https://arduino103.blogspot.com/2021/10/decoder-une-trame-rs485-loscilloscope.html
non isoler¶
Fusibles réarmables¶
Texas Instruments ISOW14x2 Isolated RS-485 DC-DC Converter¶
ANALOG DEVICES LTM2881CV-5#PBF¶
Transceiver, RS422, RS485, 20 Mbps, 1 Driver, 1 Récepteur, 4,5 à 5.5V, 0 à 70°C, LGA-32
Code Farnell 4023829
ADM2865E Power Isolated, RS-485 Transceivers¶
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% |
Module de communication d'isolation, ADUM3201 + B0505XT TTL à RS485¶
Attention RX sur TX
RS485 I2C¶
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
XY6015L Step-Down Regulated Power Supply¶
µC AT32F421 ARM® Cortex®-M4 core
Ctrl EG1163S BUCK DC-DC de Rectification synchrone 300kHz
MOS NCE82H140
Modbus¶
voir documentation 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 of register addresses n (1 ~ 32) |
CRC Check code |
1 byte | 1 byte | 2 byte | 2 byte | 2 byte |
0x03 Read function Slave returns format | ||||
address code | function code | Returns the number of bytes 2 * n | Register data | CRC Check code |
1 byte | 1 byte | 1 byte | 2*n Bytes | 2 byte |
0x06 Write a single register function in host format | ||||
address code | function code | Register address | Register data | CRC Check code |
1 byte | 1 byte | 2 byte | 2 byte | 2 byte |
0x06 Write a single register function from the machine to return the format | ||||
address code | function code | Register address | Register data | CRC Check code |
1 byte | 1 byte | 2 byte | 2 byte | 2 byte |
0x10 Write function host format | ||||||
address code | function code | Register start address | Number of register addresses n (1 ~ 32) |
Write the number of bytes 2 * n | Register data | CRC Check code |
1 byte | 1 byte | 2 byte | 2 byte | 1 byte | 2*n byte | 2 byte |
0x10 Write function slave return format | ||||
address code | function code | Register start address | Number of register addresses n (1 ~ 32) |
CRC Check code |
1 byte | 1 byte | 2 byte | 2 byte | 2 byte |
Protocol register description (single register address data for double-byte data)
name | Description | number of bytes | Decimal point | unit | Read and write | Register address |
U-SET | Voltage setting | 2 | 2 | V | R/W | 0000H |
I-SET | Current setting | 2 | 2 | A | R/W | 0001H |
UOUT | Output voltage display value | 2 | 2 | V | R | 0002H |
IOUT | Output current display value | 2 | 2 | A | R | 0003H |
POWER | Output power display value | 2 | 2 | W | R | 0004H |
UIN | Input voltage display value | 2 | 2 | V | R | 0005H |
LOCK | Key lock | 2 | 0 | - | R/W | 0006H |
PROTECT | Protection state | 2 | 0 | - | R | 0007H |
CVCC | Constant voltage constant current state | 2 | 0 | - | R | 0008H |
ONOFF | Switch output | 2 | 0 | - | R/W | 0009H |
B_LED | Backlight brightness level | 2 | 0 | - | R/W | 000AH |
MODEL | Product number | 2 | 0 | - | R | 000BH |
VERSON | Firmware version number | 2 | 0 | - | R | 000CH |
EXTRACT_M
Quickly bring up data sets
2
0
W
0023H
U-SET
Voltage setting
2
2
V
R/W
0050H
I-SET
Current setting
2
3
A
R/W
0051H
S-OVP
Overvoltage protection
2
2
V
R/W
0052H
S-OCP
Overcurrent protection value
2
3
A
R/W
0053H
S-OPP
Over power protection value
2
1、2
W
R/W
0054H
B-LED
Backlight brightness level
2
0
R/W
0055H
M-PRE
The data is called to update the output
2
0
R/W
0056H
S-INI
Power on the output switch
2
2
R/W
0057H
/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 # ?
test commande¶
sur /dev/ttyACM0
Broadcast Power ON
echo -ne "\x00\x06\x00\x12\x00\x01\xE9\xDE" > /dev/ttyACM0
Broadcast Power OFF
echo -ne "\x00\x06\x00\x12\x00\x00\x28\x1E" > /dev/ttyACM0
sur /dev/ttyUSB0
Broadcast Power ON
echo -ne "\x00\x06\x00\x12\x00\x01\xE9\xDE" > /dev/ttyUSB0
Broadcast Power OFF
echo -ne "\x00\x06\x00\x12\x00\x00\x28\x1E" > /dev/ttyUSB0
notice¶
presser [SW] pendant 2s pour accéder aux paramètres
GUI Python¶
venv — Création d'environnements virtuels¶
$ python3 -m venv venv
Pour activer l'environnement, exécutez
source venv/bin/activate
. venv/bin/activate
sous Windows
env\Scripts\activate.bat
Vous devrez « quitter » ou « désactiver » votre environnement virtuel à l'aide de la commande
deactivate
https://docs.python.org/fr/3/library/venv.html
pyqt5¶
pip3 install pyqt5 --config-settings --confirm-license= --verbose
https://stackoverflow.com/questions/73714829/pip-install-pyqt5-it-cannot-go-on
XY6015L_pyGUI¶
lancement de l'interface
python dps_GUI_program.py
configuration du port com
le port série peut être corrigé en modifiant le paramètre "port_set" dans "dps5005_limits.ini".
[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:
...
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
Updated by Frédéric Blanc 5 months ago · 73 revisions