README.md A groovy modbus library Overview libmodbus is a free software library to send/receive data with a device which respects the Modbus protocol. This library can use a serial port or an Ethernet connection. The functions included in the library have been derived from the Modicon Modbus Protocol Reference Guide which can be obtained from Schneider. The license of libmodbus is LGPL v2.1 or later. The documentation is available as manual pages ( man libmodbus to read general description and list of available functions) or Web pages. The documentation is licensed under the Creative Commons Attribution-ShareAlike License 3.0 (Unported) ().

The official website is. The library is written in C and designed to run on Linux, Mac OS X, FreeBSD and QNX and Windows. Installation You will only need to install automake, autoconf, libtool and a C compiler (gcc or clang) to compile the library and asciidoc and xmlto to generate the documentation (optional). To install, just run the usual dance,./configure && make install. Run./autogen.sh first to generate the configure script if required.

Struxureware™ SCADA Expert ClearSCADA™ driver for. Serial Protocols. Modbus slave/master, DF1 master/slave, DNP3 level 2 slave. Ethernet port (330/334 only). 8-pin modular RJ45 jack, 10/100 Mbps UTP. Limit voltage: 11.5.32 Vdc; turn on voltage: 10.11.5 Vdc; turn off voltage: 9.10 Vdc.

You can change installation directory with prefix option, eg../configure --prefix=/usr/local/. You have to check that the installation library path is properly set up on your system ( /etc/ld.so.conf.d) and library cache is up to date (run ldconfig as root if required). The library provides a libmodbus.pc file to use with pkg-config to ease your program compilation and linking. If you want to compile with Microsoft Visual Studio, you need to install to fill the absence of stdint.h. To compile under Windows, install and MSYS then select the common packages (gcc, automake, libtool, etc). The directory./src/win32/ contains a Visual C project. To compile under OS X with, you will need to install the following dependencies first: brew install autoconf automake libtool.

Documentation The documentation is available or as manual pages after installation. The documentation is based on. Only man pages are built by default with make command, you can run make htmldoc in doc directory to generate HTML files.

Testing Some tests are provided in tests directory, you can freely edit the source code to fit your needs (it's Free Software:). See tests/README for a description of each program. For a quick test of libmodbus, you can run the following programs in two shells: •./unit-test-server •. Daddy Samjha Karo Serial Online on this page. /unit-test-client By default, all TCP unit tests will be executed (see --help for options). It's also possible to run the unit tests with make check. To report a bug or to contribute See document.

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