ID 270077

Activation job for manual mode was not processed by PLC (control unit not empty).

Description

The CNC tries to forward a job from another application (e.g. HMI) to the PLC. The job contains data on which input device (e. g. key, handwheel) commands a specific axis in manual mode.

This job to assign an input device to an axis, however, could not be written within a defined number of CNC cycles via the associated control unit of the interface to the PLC because this control unit is still occupied by a previously transmitted data.

Check the following points in the PLC application:

1. The request semaphore in the control unit must be reset by the PLC after each transfer of data from an activation request for manual mode.
2. The PLC cyclically checks the Control Unit for newly received data.
3. If the PLC is not to handle an activation request for manual mode, the Enable flag of the corresponding Control Unit is set to False.

See
[HLI// Section: Activating control elements for manual mode] for CNC builds < 2800
[HLI// Section: Activating control elements for manual mode] for CNC builds > 2800

Response

Class

3

Solution

Class

1

Error type

-