# Selecting a coordinate system (#CS)

Select: #CS ON

The PCS can be offset and rotated with respect to the MCS by selecting a CS. This permits simple NC programming even in slanted or twisted positions.

Use of this NC command depends on the axis configuration of the machine (see Channel parameters, Section: Configuration of the path axes).

Machining in a rotated PCS basically makes sense whenever existing rotary axes P-AXIS-00018 permit vertical orientation of the tool with respect to the machining surface (#TOOL ORI CS).

The axis designations P-CHAN-00006 remain unchanged in the CS.

Selecting a CS with one offset and one rotation

V Offset vector

φ Rotation vector

Effectiveness

- Active until cancelled or up to program end.
- Nesting/linking a CS is possible.

Zero offsets and reference point offsets may be programmed in the CS during machining. They are valid until the CS is deselected; they are not saved.

Deselect: #CS OFF

## Notice

The NC command #ROTATION is provided for simple rotations in the plane.