-
Path: news-archive.icm.edu.pl!news.icm.edu.pl!news.chmurka.net!.POSTED.h82-143-187-50
-static.e-wro.net.pl!not-for-mail
From: "J.F" <j...@p...onet.pl>
Newsgroups: pl.misc.elektronika
Subject: Re: Multiplekser/sniffer/arbiter modbus
Date: Sat, 8 Apr 2023 09:40:29 +0200
Organization: news.chmurka.net
Message-ID: <1tu1myj3d8q10$.19bnqf7467l4n.dlg@40tude.net>
References: <u0jesg$3rbf4$1@dont-email.me>
<4...@g...com>
<u0kfa6$513$1@dont-email.me>
<642dcc7b$0$19610$65785112@news.neostrada.pl>
<u0kjt4$nps$1@dont-email.me>
<642dd9da$0$19615$65785112@news.neostrada.pl>
NNTP-Posting-Host: h82-143-187-50-static.e-wro.net.pl
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 8bit
Injection-Info: news.chmurka.net; posting-account="jfoxwr";
posting-host="h82-143-187-50-static.e-wro.net.pl:82.143.187.50";
logging-data="25933";
mail-complaints-to="abuse-news.(at).chmurka.net"
User-Agent: 40tude_Dialog/2.0.15.1
Xref: news-archive.icm.edu.pl pl.misc.elektronika:779611
[ ukryj nagłówki ]On Wed, 5 Apr 2023 22:28:10 +0200, Piotrek wrote:
> On 05.04.2023 21:58, heby wrote:
>> Liczyłem na jakiś ... powiedzmy ... gotowiec z 3 dziurkami RS485,
>> obsługujący 2 masterów i 1 slave. Chyba nie jestem jedyny na świecie z
>> takim pomysłem ;)
>
> GPT twierdzi, że nie ma ;-)
>
> "[...]
>
> Unfortunately, there are no known open-source projects that implement a
> two-master, one-slave Modbus architecture. However, you can start with
> existing Modbus libraries (e.g., libmodbus, FreeModbus) and modify them
> according to the outlined approach to develop your custom solution."
>
> ale przyciśnięty do muru
>
> Are you sure there is no such open source project?
>
> zaczął programować w Python. LOL
Moze od razu poprosic o kod na wybrany uC ? :-)
> "I apologize if my previous response may have been unclear. While it is
> challenging to be aware of every single open-source project available,
> to the best of my knowledge (as of the knowledge cutoff in September
> 2021), there was no specific open-source project that implements a
> two-master, one-slave Modbus architecture.
>
> However, you may find open-source projects that implement Modbus
> gateways or proxies, which you could adapt to achieve the desired
> two-master, one-slave communication. One such project is modbus-tk, a
> Python library that allows you to create Modbus masters and slaves, and
> it includes a TCP to Serial gateway implementation.
>
> Project Repository: https://github.com/ljean/modbus-tk
>
> Here's a basic example of how you can use modbus-tk to create a Modbus
> TCP to Serial gateway:
>
> python
>
> import modbus_tk
> import modbus_tk.defines as cst
> from modbus_tk import modbus_tcp
> from modbus_tk import modbus_rtu
>
> def main():
> # Configure Modbus RTU master
> master_rtu = modbus_rtu.RtuMaster(
> modbus_tk.utils.create_serial_handler(port="/dev/tty
S0")
> )
> master_rtu.set_timeout(5.0)
> master_rtu.set_verbose(True)
>
> # Configure Modbus TCP server
> server_tcp = modbus_tcp.TcpServer(address="0.0.0.0", port=502)
> server_tcp.start()
>
> # Main loop to process Modbus TCP requests and forward them to
> Modbus RTU
> while True:
> try:
> request = server_tcp.get_request(blocking=True)
> if request is not None:
> response = master_rtu.execute(
> request.slave_id,
> request.function_code,
> request.starting_address,
> request.quantity_of_x,
> request.output_value,
> )
> request.set_response(response)
>
> except modbus_tk.modbus.ModbusError as exc:
> print("Error processing request:", str(exc))
>
> if __name__ == "__main__":
> main()
>
> This example creates a Modbus TCP server that forwards incoming requests
> to a Modbus RTU master. You could extend this example to support two
> Modbus TCP masters and manage the communication with the single Modbus
> RTU slave.
I to jest przykład z powyzszego archiwum, czy GPT napisal sam ?
> Please note that this example uses Python, and you would need to adapt
> the code to your specific requirements, such as handling communication
> conflicts between the two masters."
>
> P.
J.
Następne wpisy z tego wątku
- 08.04.23 16:07 Dawid Rutkowski
- 08.04.23 16:39 heby
- 08.04.23 16:40 heby
- 14.04.23 22:53 M M
Najnowsze wątki z tej grupy
- stara idea nowe hardware
- Dzwonek gong z transformatorem
- espnow przerywa na jeziorze?
- 8080
- Portowanie CP/M
- radyjko
- Re: Basen i chłodzenie w w wentylacji mechanicznej
- Akumulatory VRLA
- ładowarka zmarła
- Podstawa bezpiecznikowa jako rozłącznik DC
- Napięcie akumulatora wyłączające UPS / jakie nowe akumulatory do UPS?
- nawigacja satelitarna
- SmartLife/Tuya i osuszanie -- mordowanie z zimną krwią...
- Głośnik piezoelektryczny
- Mala autonomiczna kamera monitoringu
Najnowsze wątki
- 2024-07-17 Lublin => Full Stack Java Developer <=
- 2024-07-17 Lublin => Java Full Stack Developer (+Angular) <=
- 2024-07-17 Turek => IT Project Manager (experience with C#) <=
- 2024-07-17 Warszawa => Mobile React Native Developer <=
- 2024-07-05 eSIM na czym polega
- 2024-07-15 Roaming poza unią
- 2024-07-16 Jak tanio dzwonic do Wielkiej Brytani?
- 2024-07-16 Dzień bez ICE
- 2024-07-15 Spalinówki płoną doszczętnie
- 2024-07-15 Pojemność akumulatora
- 2024-07-15 Elektryk8i dalej płoną.
- 2024-07-15 Motodziennik #284 NOWY MG HS z hybrydą oraz wraca FORD CAPRI (jako SUV)
- 2024-07-14 [FILM] SAMOCHODY ELEKTRYCZNE DO WIELKIE ŚCIEMA? TYLKO FAKTY!
- 2024-07-14 Znieczulica w narodzie
- 2024-07-13 Protect Your PC with IObit Malware Fighter Pro 11.3.0.1346 Multilingual