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Interlockings control the access to certain zenon objects during Runtime via variables.

Operation can be blocked or released depending on variables. Depending on process stati operations can be activated/deactivated.

Example Example

A machine is in full automatic operation, so it should not be switched to manual operation. Only if a certain operation status (e.g. STOP) is reached, it is allows to be switched. With an interlocking the button for switching between manual and automatic operation can be locked in the visualization surface, until this status (e.g. STOP) is true. So it can be avoided, that maloperations occur.

It is possible to create and use various interlockings within one project. In each interlocking several parallel interlocking conditions are possible.

Interlocking of Objects

Dynamic picture elements (General interlocking)