Maximum path for pre-output of M functions (P-STUP-00062)

P-STUP-00062

Maximum path for pre-output of M functions

Description

This parameter permits an additional limitation of the look-ahead range considered for the pre-output of M functions on a maximum path (see [FCT-C1]).

If this maximum distance exceeds the sum of all currently considered motion blocks (except for the ‘oldest’ motion block), the ‘oldest’ motion block is output. In other words, an M function can be pre-output by at least the specified distance.

Parameter

configuration.channel[i].path_preparation.m_pre_output_max_distance

Data type

UNS32

Data range

0 ... MAX(UNS32)

Dimension

0.1µm

Default value

0

Remarks

If the maximum number of blocks P-STUP-00061 is set to a high value, it may cause a long delay in channel reaction. To avoid this, a distance limit can also be specified. With long motion blocks in particular, this maximum distance is already reached after a few blocks. This prevents additional delay caused by saving motion blocks in the pre-output of M functions.

Without an explicit setting, the range is not additional limited (only by the number of blocks P-STUP-00061).

If a pre-output is set greater than the distance currently saved in the look-ahead range, the M function is pre-output at the maximum known path position and a warning is issued.

Parameterisation example:

configuration.channel[0].path_preparation.function FCT_DEFAULT | FCT_M_PRE_OUTPUT

configuration.channel[0].path_preparation.m_pre_output_lookahead 100

configuration.channel[0].path_preparation.m_pre_output_max_distance 35000 [0.1µm]