Working with WinPlot and Dual head S Class 2 will only work for firmware revision up to revision 25. From revision 26 the roll cutter will no longer be able to make the same functionality as described below!
From revision 26 or higher you should use GoSign when working with a dual head. The setup is also much easier and intuïtief as you can assign tools to colors.
For "Dual head" in most cases there is used specific software that drives the machine. These kind of RIP software is not made by Summa. In most cases they are used to make patterns for textile industry.
When you want to use WinPlot to drive the dual head than make sure to use 2 colors in your design to be able to address the "Extra Pen":
When a dual head is installed, “red lines” have 2 functions:
1/ cutting tool is set on EXTRA PEN => plotting is done with extra pen, red lines are done with tangential knife in FlexCut mode
2/ cutting tool is set to TANGENTIAL KNIFE => cutting is done with tangential knife, red lines are plotted with extra pen.
Make sure to disable the option "Each object individually" in the "Selection" tab: