Protection zones
4.3 Checking for protection zone violation, working area limitation and software limits
Job planning
Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0
4-13
For certain kinematic transformations (e.g. TRANSMIT), the position of the machine axes
cannot be determined uniquely from the positions in the workpiece coordinate system (WCS)
(non-uniqueness). In the normal traversing operation, the uniqueness normally results from
the previous history and the condition that a continuous movement in the WCS must
correspond to a continuous movement in the machine axes. When monitoring the software
limits using the CALCPOSI function, the current machine position is therefore used to
resolve non-unique determinability in such cases. If necessary, a STOPRE must be
programmed in front of CALCPOSI to input valid machine axis positions to the function.
It is not guaranteed that the separation to the protection zones specified in _DLIMIT[3] can
always be maintained for a movement on the specified traversal path. Therefore if the end
point returned in _MOVDIST is lengthened by this distance, no protection zone is violated,
even though the straight line may pass extremely close to a protection zone.
Note
You will find details on working area limitations in the
/PG/ Fundamentals Programming Guide,
on the software limits in
/FB1/ Function Manual, Basic Functions; Axis Monitoring, Protection Zones (A3).
To Next Page
Loading...
Need help?
General
