Maximum path for pre-output of M functions (P-CHAN-00604)

P-CHAN-00604

Maximum path for pre-output of M functions

Description

This parameter sets an additional limitation of the look-ahead range for the pre-output of M functions (see [FCT-C1]) to a maximum distance.

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.path_preparation.m_pre_output_max_distance

Data type

UNS32

Data range

0 ... MAX(UNS32)

Dimension

0.1µm

Default value

0

Remarks

Parameter is available as of the following Builds: V2.11.2040.04 ; V2.11.2810.02 ; V3.1.3079.17 ; V3.1.3107.10

If the maximum number of blocks P-CHAN-00603 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 specification, the range is not additionally limited (only by the number of blocks P-CHAN-00603).

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.path_preparation.function FCT_DEFAULT | FCT_M_PRE_OUTPUT

configuration.path_preparation.m_pre_output_lookahead 100

configuration.path_preparation.m_pre_output_max_distance 35000 [0.1µm]