# Speeds of a spindle

Speed setpoint
Description | Current speed setpoint of the spindle
Signal flow | CNC → PLC
ST path | gpAx[axis_idx]^.lr_state.active_rev_r
Data type | DINT
Unit | [0.001°/s]
Access | PLC is reading
Special features |

Actual speed
Description | Current actual speed of the spindle
Signal flow | CNC → PLC
ST path | gpAx[axis_idx]^.lr_state.current_rev_r
Data type | DINT
Unit | [0.001°/s]
Access | PLC is reading
Special features |

Speed programmed
Description | Speed setpoint of the spindle programmed via M03, M04 or S in the NC program
Signal flow | CNC → PLC
ST path | gpAx[axis_idx]^.lr_state.cmd_rev_r
Data type | DINT
Unit | [0.001°/s]
Access | PLC is reading
Special features |