Project home: https://bues.ch/a/awlsim Original repository at: https://git.bues.ch/git/awlsim.git https://bues.ch/a/awlsim

Michael Buesch 858bc11e49 tests/fup: Add basic test for fup-shift 1 week ago
awlsim adf2ef2667 fupcompiler/oper: Honor preferVKE when handling T and Z operands 1 week ago
awlsim_loader 1aa01dd38f Add AWL optimizer stub 3 months ago
awlsimhw_debug 8b9d372a9b hwmods: Add import of awlsim.common.exceptions 4 months ago
awlsimhw_dummy 8b9d372a9b hwmods: Add import of awlsim.common.exceptions 4 months ago
awlsimhw_linuxcnc 8b9d372a9b hwmods: Add import of awlsim.common.exceptions 4 months ago
awlsimhw_pyprofibus 8b9d372a9b hwmods: Add import of awlsim.common.exceptions 4 months ago
awlsimhw_rpigpio 8b9d372a9b hwmods: Add import of awlsim.common.exceptions 4 months ago
debian 1a04b684b1 debian: Add awloptimizer 1 month ago
doc 6ac5d4d20c doc: Add more FUP docs 3 weeks ago
examples 10e6a4c85f core/gui: Add disable flag to sources 2 weeks ago
libs 91fa5d0095 Fix min-int constants on 32 bit Cython 5 months ago
maintenance 86820c7fef Add version suffix 2 months ago
pilc a28bcb57a6 pilc-bootstrap: Fix qemu-bin option 2 weeks ago
progs 5bcb65a617 Add PuTTY 1 year ago
submodules ac8b991997 Update pyprofibus 6 months ago
tests 858bc11e49 tests/fup: Add basic test for fup-shift 1 week ago
.gitignore 7cde4e890c Add generated doc files to gitignore 9 months ago
.gitmodules a5559035f8 Move all git submodules to "submodules" directory. 1 year ago
COMPATIBILITY.md c4e79739bc doc: Fix typo 8 months ago
COPYING.txt 193467d27e Clarify license conditions (GPL2+) 3 years ago
MANIFEST.in 9433b1f5e7 Move setup_cython.py to maintenance directory 7 months ago
QUICK-START.md 4058500794 Add QUICK-START documentation 9 months ago
README.md 2e872c4826 Update URL 2 months ago
TODO.md 6a74cedb07 fupcompiler: Implement compare box 3 weeks ago
awlsim-client 2d76736f0d Move cython logic to separate awlsim_loader module 11 months ago
awlsim-gui 250f25803b Update copyright 1 year ago
awlsim-linuxcnc-hal 9cab2bcaa0 Add CpuConfig to store CPU configuration values 6 months ago
awlsim-proupgrade 91d08301c6 proupgrade: Add info message 5 months ago
awlsim-server 164c250f7f awlsim-server: Fix cython helper check 10 months ago
awlsim-server.service.in 74d8702854 service unit: Disable hash randomization and set CPU affinity 4 months ago
awlsim-symtab 21e6cad1f8 ASC: Strip white space in ASC files 4 months ago
awlsim-test 10e6a4c85f core/gui: Add disable flag to sources 2 weeks ago
awlsim-win.cmd bbaa7ed08d Update windows build scripts 7 months ago
awlsimhw_pyprofibus.conf a2825f0256 hw/pyprofibus/conf: Fix py2 compatibility 1 year ago
setup.py 2e872c4826 Update URL 2 months ago

README.md

Awlsim - S7 compatible Soft-PLC

Awlsim is a free Step 7 compatible AWL/STL Soft-PLC written in Python.

The latest version of awlsim can be downloaded from the official awlsim site.

Awlsim - Soft-PLC

Awlsim is a free Step 7 compatible AWL/STL Soft-PLC written in Python. Depending on the host machine and the Python interpreter used, it achieves good performance of several thousand to millions of AWL/STL instructions per second. German and English S7 AWL/STL mnemonics are supported.

AWL/STL programs on PLCs are used for automation of industrial processes. However Awlsim is very flexible, so it can be used for other purposes beyond industrial applications, too. Awlsim aims to be compatible with the industry standard S7 software on the AWL/STL level.

Awlsim can emulate CPUs with two and four accumulator registers (S7-3xx and S7-4xx). Compatibility to S7 hardware is a task taken seriously by the awlsim project. We want to be as close as possible to the real PLC hardware with our AWL/STL code execution. For this reason awlsim ships an extensive selftest suite. Missing features and differences between awlsim and Step 7 are documented in the COMPATIBILITY documentation and TODO documentation files.

Quick start tutorial

See the quick start tutorial for a simple example on how to use Awlsim in simulator mode. Simulator mode does not require any special hardware to run.

Example project

If you don't know where to start, you can find an example project in the examples directory as EXAMPLE.awlpro. You can easily run this example in simulation mode without the need for special hardware.

License / Copyright

Copyright (C) Michael Büsch / et al.

Awlsim is Open Source Free Software licensed under the GNU General Public License v2+. That means it's available in full source code and you are encouraged to improve it and contribute your changes back to the community. Awlsim is free of charge, too.