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Does there have some stable modbus communcation lib
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Topic: Does there have some stable modbus communcation lib (Read 1125 times)
@Func
New Member
Posts: 36
Does there have some stable modbus communcation lib
«
on:
January 14, 2020, 06:00:07 pm »
dear buddy
Does there have some stable modbus communcation lib Or python plugin for lazarus?
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lucamar
Hero Member
Posts: 4219
Re: Does there have some stable modbus communcation lib
«
Reply #1 on:
January 14, 2020, 07:16:06 pm »
For ModBus see here:
PacalSCADA
and for embedding/interfacing Python, see:
Category: Python
, both in the wiki; there may be other libraries out there but I'm no expert and I don't have a comprehensive list, sorry.
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Turbo Pascal 3 CP/M - Amstrad PCW 8256 (512 KB !!!)
Lazarus/FPC 2.0.8/3.0.4 & 2.0.12/3.2.0 - 32/64 bits on:
(K|L|X)Ubuntu 12..18, Windows XP, 7, 10 and various DOSes.
af0815
Hero Member
Posts: 1291
Re: Does there have some stable modbus communcation lib
«
Reply #2 on:
January 14, 2020, 08:47:52 pm »
https://github.com/coassoftwaresystems/delphi-modbus
for master and slave (Use Indy as basis)
PascalSCADA from OPM for master only
i have booth running in production enviroment. PascalSCADA is more easier than dephi modbus.
Both versions are stable for me (i have frozen a version on my github
https://github.com/afriess/delphi-modbus
) but you have to understand the basics of modbus and the used packages and commands.
see
http://www.modbus.org/tech.php
and the modbus specification. The document MODBUS Protocol spezifcation is a 'must have' with the information about the function codes you can work with the libs above. Without a base knowledge of this paper you cannot configure the componnets.
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regards
Andreas
@Func
New Member
Posts: 36
Re: Does there have some stable modbus communcation lib
«
Reply #3 on:
January 15, 2020, 01:10:01 am »
Thank for your help ,I'll try it .
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