# ID 21510

Read access on distance value in combination with active unit "time" not allowed.
Description | The corner distance of the velocity look-ahead parameters should be read in mm or inch with V.G.SPEED_LIMIT.DIST_TO_CORNER or V.G.SPEED_LIMIT.DIST_FROM_CORNER . This read access is not possible, because the corresponding parameters currently are defined as time values in seconds.
Response | Class | 2 | Abort NC program processing.
Solution | Class | 3 | Check and modify NC program. The read access on the time based corner distances have to be programmed with V.G.SPEED_LIMIT.TIME_TO_CORNER or V.G.SPEED_LIMIT.TIME_FROM_CORNER Note:

The active unit can be read with the variable

V.G.SPEED_LIMIT.TIME (0: distance, 1: time).

Parameter | %1: | Error value [-]
Identifier of the programmed variable
%2: | Current value [-]
Value of P-CHAN-00018
Error type | 1, Error message from NC program.