# Bit number process data 'enable probe 2' (P-AXIS-00682)

P-AXIS-00682 | Bit number process data 'enable probe 2'
Description | This parameter defines which bit in the process data configured with P-AXIS-00681 is used to transfer the 'enable probe 2' bit to the drive. The last significant bit has number 0, the maximum value depends on the size of the process data used. When the SERCOS control word is used for transmission of the 'enable probe 2' bit, only bit numbers 6 and 7 can be used (real-time control bits 1 and 2).
Parameter | antr.sercos.probe_2_realtime_bits.start_probing.bit_nr
Data type | SGN16
Data range | -1 … MAX(SGN16)
Axis types | T, R, S
Dimension | T: ---- | R,S: ----
Default value | -1
Drive types | SERCOS
Remarks | If the bit number configured here is invalid, the error message P-ERR-110613 and the axis parameters P-AXIS-00118 (measuring axis) and P-AXIS-00098 (kasto_axis) are reset to prevent the execution of a measurement travel or edge banding with incompletely configured probes.