plcfw Files

plcfw is a simple command-line tool to communicate with Siemens S7 PLC using the fetch-write protocol.
It can be used to do a single query of one data block item, or to process a list of queries to various data blocks. 
Refer to Siemens document "FETCH/WRITE service in an S7-300/400 CPU via the integrated Ethernet interface" for details about the protocol specification and configuration on the PLC side.

Author: Ondrej Hrstka <ondrej.hrstka@iba-group.com>

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

For a full licence, visit this page: http://www.gnu.org/licenses/gpl-2.0.html

Read 'INSTALL' file for installation instructions.

To read full description and instructions, refer to the manpage:
$ man plcfw

or 

$ man ./plcfw.man 
(in this directory, before installation).