https://github.com/heyoka/snap7erl

Erlang wrapper around the multiarch snap7 library
https://github.com/heyoka/snap7erl

erlang plc s7-addressing siemens-s7-plcs snap7

Last synced: about 1 month ago
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Erlang wrapper around the multiarch snap7 library

• Host: GitHub
• URL: https://github.com/heyoka/snap7erl
• Owner: heyoka
• License: apache-2.0
• Created: 2019-08-29T14:43:18.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2024-10-16T07:38:48.000Z (2 months ago)
• Last Synced: 2024-10-17T22:53:24.476Z (2 months ago)
• Topics: erlang, plc, s7-addressing, siemens-s7-plcs, snap7
• Language: C++
• Size: 752 KB
• Stars: 7
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
snap7erl

=====

Erlang only version of https://github.com/valiot/snapex7

Note: the snap7 sources are included in this library at the moment.

Supported architectures

----------------------

Sucessfully builds and tested on:

+ Linux i386

+ Linux x86_64

+ Linux armv6

+ Linux armv7

+ Linux armv7l

Build

-----

    $ rebar3 compile

    

Start

-----

    $ rebar3 shell

    

Useage

------

    %% start a client

    {ok, Client} = snapclient:start([]).

    

    %% connect to a S7

    ok = snapclient:connect_to(Client, [{ip, <<"127.0.0.1">>}, {slot, 1}, {rack, 0}]).

    

    %% read a DB with addressing

    A = <<"DB4.DBR2">>,

    ParamList = s7addr:parse(A, return_list), 

    snapclient:db_read(Client, ParamList).