# Monitoring window (P-AXIS-00713)

P-AXIS-00713 | Monitoring window for the fixed stop.
Description | This parameter defines a tolerance window for the fixed stop. If the actual position of the axis leaves the tolerance window after the fixed stop is detected, the CNC issues the error message P-ERR-70548. If this parameter is changed after the fixed stop is detected, the CNC assumes the current fixed stop position as the centre of the new tolerance window.
Parameter | antr.fixed_stop.window
Data type | UNS32
Data range | 0 ≤ pos_lag_limit ≤ MAX(UNS32)
Axis types | T, R
Dimension | T: 0.1µm | R: 0.0001 °
Default value | 0
drive types. | SERCOS, CANopen
Remarks | The monitor is disabled with the value 0.