Siemens SINUMERIK 840D sl Function Manual page 897

The new complete frame is calculated to be:
$P_ACTFRAME
If a current frame has been specified as a target frame, then the new complete frame
becomes active at the preprocessing stage. If the target frame is a data management frame,
then the frame is not operative until it is explicitly activated in the part program.
The function does not set any alarms, but returns the error codes via the return value. The
cycle can react according to the error codes.
2.4.8 Functions
2.4.8.1 Setting zeros, workpiece measuring and tool measuring
PRESET is achieved using HMI operator actions or measuring cycles. The calculated frame
can be written to system frame SETFRAME. The position setpoint of an axis in the WCS can
be altered when the actual-value memory is preset.
"Scratching" means workpiece and tool measuring. The position of the workpiece in relation
to an edge, a corner or a hole can be measured. To determine the zero position of the
workpiece or the hole, position setpoints can be added to the measured positions in the
WCS. The resultant offsets can be entered in a selected frame. In tool measuring, the length
or radius of a tool can be measured using a measured reference part.
Measurements can be taken via operator actions or measuring cycles. Communication with
the NCK takes place via predefined system variables. In the NCK, the calculation is made by
using a HMI operator action to activate a PI service, or by using a part-program command
from the measuring cycles. A tool and a plane can be selected as a basis for the calculation.
The calculated frame is entered in the result frame.
Basic logic functions: Axes, coordinate systems, frames (K2)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
= $P_ACTFRAME
new old
: TMPFRAME
Detailed description
2.4 Frames
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