Eliminated from:
L_TT1P_TechnologyModules_SM3 V3.9.0.9
L_TT1P_TechnologyModules_LM V3.9.0.62
Behaviour of new version:
Engaging the cam is executed without exception. Regardless of whether the input xCamChangeInstant is set or not.
What happens?
When clutching in (xSyncCam = TRUE), the following exception occurs:
*EXCEPTION* FPU DivisionByZero Application "Task-Name"
PLC processing is stopped by the exception.
When does this behaviour occur?
The exception occurs if the xCamChangeInstant input of the L_TT1P_FlexCamBase or the L_TT1P_FlexCamState technology module remains TRUE after a cam replacement and declutching (xSyncCam = FALSE) and clutching in (xSyncCam = TRUE) is carried out.
Which products are affected?
PLC Designer from V3.8
L_TT1P_TechnologyModules library V3.8.0.23
Short-term measures/recommendations:
Ensure that the xCamChangeInstant technology module input is set to FALSE when clutching in (xSyncCam = TRUE).
Evaluation:
An exception may occur when clutching in to the curve. In this case, PLC processing will stop. If the above-described recommendation is observed, the function restriction does not occur.