ItpGetBottleNeckLookAheadEx

The function block ItpGetBottleNeckLookAheadEx determines the maximum size of the look-ahead for the bottleneck detection (contour collision monitoring).

There is a more detailed description in the Interpreter documentation.

VAR_INPUT

VAR_INPUT
    bExecute       : BOOL;
    tTimeOut       : TIME;
END_VAR

bExecute: The command is triggered by a rising edge at this input.

tTimeOut: ADS Timeout-Delay

VAR_IN_OUT
    sNciToPlc           : NCTOPLC_NCICHANNEL_REF;
END_VAR 

VAR_OUTPUT

VAR_OUTPUT
    bBusy          : BOOL;
    bErr           : BOOL;
    nErrId         : UDINT;
    nLookAhead     : UDINT;
END_VAR

bBusy: This output remains TRUE until the function block has executed a command, but at the longest for the duration supplied to the 'Timeout' input. While Busy = TRUE, no new command will be accepted at the inputs. Please note that it is not the execution of the service but its acceptance whose time is monitored.

bErr: This output is switched to TRUE as soon as an error occurs during the execution of a command. The command-specific error code is contained in ‘nErrId’. If the function block has a timeout error, ‘Error’ is TRUE and ‘nErrId’ is 1861 (hexadecimal 0x745). Is reset to FALSE by the execution of a command at the inputs.

nErrId: Contains the command-specific error code of the most recently executed command. Is reset to 0 by the execution of a command at the inputs. The error numbers in ErrId can be looked up in the ADS error documentation or in the NC error documentation (error codes above 0x4000).

nLookAhead: Value of the look-ahead for bottleneck detection