The coarse-position-command is the motor position before applying screw compensation or backlash compensation, so it differs from the motor-pos-cmd on machines that have these compensations enabled.
Additionally, the ferror is computed from the *prior* commanded position and the *current* motor position, but halscope captures after commanded position is updated. On the other hand, PID error is the difference from the *current* motor position and *current* commanded position; this is why PID error and ferror are not equal either. Jeff ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
