Free ladder & sequential (grafcet) languages as used on many PLC for programming automation process. Ladder language allows to realize programs on PLC in an electric way. Modbus protocol for SCADA cnx and remote I/O modules. RTLinux/RTAI/Xenomai support. Can be embedded without GTK interface.
Hardware ClassicLadder I/O module slave prototype (modbus)
New GUI with menu and toolbar (version 0.8.10, dec.2010)
View of the main window (ladder language here), edit toolbar
Hardware ClassicLadderPLC x86 12 inputs / 8 outputs / Ethernet / RS485 / RS232 / USB_A
ClassicLadderPLC with GSM modem (on serial port)