libnodave: libnodave (Siemens S7 300/400 PLC library) libnodave: libnodave: libnodave is a library that provides the necessary functions to libnodave: connect to and exchange data with Siemens S7 300/400 PLCs. libnodave: libnodave: 200 family and S5 family now also supported. libnodave: libnodave: libnodave: libnodave: libnodave: