Position offsets in the PCS

Manual mode offset (PCS)

Description

Current manual mode offset.

Signal flow

CNC → PLC

ST path

gpCh[channel_idx]^.bahn_state.coord_r[axis_idx].man_offset_r

Data type

DINT

Unit

0,1 µm

Access

PLC reads

Total offset (PCS)

Description

Sum of all active offsets

TotalOffset = - Offsets + Tool

Signal flow

CNC → PLC

ST path

gpCh[channel_idx]^.bahn_state.coord_r[axis_idx].total_offset_r

Data type

DINT

Unit

0,1 µm

Access

PLC reads

Special features

Offsets are included in the total as negative values.

For 2.5 D machining:

TotalOffset = - Offset_G92 - Offset_NP -    + WZ_Achsversätze

Calculation of PCS coordinates based on ACS coordinates:

PCS = ACS + TotalOffset

Example program:

%total_offset

N00 X100               (ACS = 100mm)

N10 G92 X11            (total_offset = -11mm)

N20 X200               (ACS = 211mm)

N30 D1                 (total_offset = 64mm,)

     ( bei wz[1].ax_versatz[0] 750000[0.1μm])

N40 V.G.WZ_AKT.V[0]=55 (total_offset = 44mm)

N30 X300               (-> ACS coordinate = 256 mm)

M30