No PROFINET communication after download in Siemens controller

Corrected with:
-
Behavior of the new version;
-

Description of behavior;
PROFINET communication between the Siemens controller and the Lenze controller is not working.

Neither the Siemens controller nor the Lenze controller displays an error message.

The process data remains marked as invalid. This means that the process data is not updated.

Conditions under which the behavior occurs;
If there are a large number of participants on a SIEMENS IO controller, problems may occur after downloading when establishing a connection to the slave participant.

Affected products:
Controller c430
Controller c520
Controller c550

Short-term measures, Recommendations, Evaluation:
Restart the Lenze controller or perform a "Restart with current values" using parameter 0x2380.

[Automatic Translation]
URL for linking this AKB article: https://www.lenze.com/en-de/go/akb/202500254/1/
Meta data
Taxonomy: Controller c520 , Controller c550 , Controller c500 , Controller c430
AKB-ID: 202500254
Last update: 2025/12/15
Category: Version Informations

Lenze reserves the right to change information on this page at any time. Any liability for the accuracy of the information is excluded.
Contact form