ParameterElements

ParameterElements are objects for value specifications by parameters from different sources: internal PLC logic and manual operation (e.g. via OPC UA). The values are managed via the state machine Service Mode.

Depending on the specific use case, parameters are classified as either configuration parameters or procedure parameters. Configuration parameters are assigned to a service and can be used by all procedures. Procedure parameters are assigned to one or more procedures within a service.

Parameter instances that are transferred to the input ConfParameters of a service are considered configuration parameters.

Parameter instances that are transferred to one or more procedures of the service at the input ProcParameters are considered procedure parameters.

The sum of all procedure parameters of the procedures of a service must also be transferred collectively at the input ProcParameters of the higher-level service.

For using parameters, we recommend using TwinCAT 3 MTP Engineering and the automatic code generation feature it includes!