2nd Clearance Plane -- Specify the letter address to output the Secondary Clearance Plane value for all canned cycles. Select "Disable" if the controller does not have a Secondary Clearance Plane. The Secondary clearance plane value c2 is given in the CYCLE command as CYCLE/--,RTRCTO,c2. Using this option, specify if c2 is incremental or absolute from the cycle goto point. When set to absolute, it is possible to retract to a known z-height regardless of the z-height of the drill point. (Intcom 3449 for lathe, Intcom 2482 for mill)