moonkihong / protocol-opcua-c

OPC-UA Protocol Stack (C)

This provides opcua protocol stack library

Prerequisites

• You must install basic prerequisites for build

  $ sudo apt-get install build-essential

• cmake

  • Version : Upper 3.10
  • Where to download
  • How to install

• SCons

  • Version : 2.3.0 or above
  • How to install

• Python

  • Version : 2.7.X

• pip

  • How to install

  $ curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
  $ python get-pip.py

How to build

$ ./build.sh
$ ./build_arm.sh  : for arm architecture

Build Options

• --build_mode = [release/debug]

  If you want to build to debug mode, then please make this option [debug/DEBUG]. Default value is [release].

Binaries

• opcua protocol stack library : build/libopcua-adapter.so

Note

• Build script will download open62541 library automatically from github.
• After download, it will be built for 'single file distribution' mode which combines all header files into a single header file(open62541.h) and all source files into a single source file(open62541.c).
• After building, all library files and folders except open62541.h and open62541.c will be deleted.
• Final location of open62541.h and open62541.c: extlibs/open62541/open62541/
• These two files will be directly included and built along with OPC-UA protocol stack.

How to run server and client examples

1. Go to 'example/out' folder.

2. Export 'libopcua-adapter.so' library path for executables:

   Run command : export LD_LIBRARY_PATH=../../build

3. Run the server and client :

    1. server : `./server`
   
    2. client : `./client`
   

How to run browseNext in client example

1. 'start' : Connection establishment.

2. 'set_max_ref' : Set the maximum references per node to be returned. [ex 10]

3. 'browse' : Performs browse with '10' as maximum references per node.

... <browse callback may come with 1 or more continuation points. Callback in sample stores all of them in a list> ...

4. 'browse_next' : Perform browse next with stroed continuation points

... <browse callback may come with 1 or more continuation points again. Callback in sample stores all of them in a list> ...

5. go to Step 4. Step 4 can be continued until continuation point list becomes empty.

DNS Setup for OPC UA endpoint url.

$vi /etc/hosts'

[IP Address] [Host Name]
# e.g) 100.101.102.103 linux-abcd

OPC-UA protocol stack library for Windows

• How to build OPC-UA protocol stack library