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 Use of XSteps to Connect Up External Systems Locate this document in the navigation structure

Use

If you want to transfer XSteps to external systems, you have specified type 2 Download to External System, Initiated by Process Management(SAP) as the control instruction/recipe destination. In the case of control instructions/recipes with this destination, the XSteps are passed on to an external system (such as a process control system) via the PI-PCS interface. There they are processed automatically. The external system then reports back actual data to the SAP system.

Prerequisites

  • A precondition for the use of this function is that you are using an external system that is connected to the SAP system via the PI-PCS interface.

    For more information, see PI-PCS Interface .

  • You have set the Generation of XSteps Blocks indicator in Customizing under Define and Set Up Control Instruction/Recipe Destinations. Only if the indicator is set can you send control instructions/recipes with XSteps to external systems.

Features

If you define XSteps that are to be sent to an external system, you enter the data that you wish to send in the XStep in the form of a parameter list. The XStep contains the parameters with the characteristics for appropriate value assignment (see also XStep Parameters ). It is not necessary to create process instructions for the XStep.