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Former Member

SAP MII OPC HDA and SAP ERP (PM) integration

Hello!

I have a task: i need to estimate (in hours) integration process OPC HDA system -> SAP MII -> SAP PM.

We have one piece of equipment with 4 different sensors. Data from these sensors goes to OPC HDA system and stores there.

I need:

1. Make connection with OPC HDA system and SAP MII.

2. Take historical data from 4 sensors (from OPC HDA system) using SAP MII and put it into corresponding BAPI.

3. Update corresponding measuring point (or counter) into correcponding piece of equipment in SAP ERP (PM).

How much time does it take? Could you help me to estimate this task (applied to one piece of equipment)?

Thank you

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2 Answers

  • Jul 24, 2017 at 08:46 AM

    Have you ever done it before? Probably not, otherwise you would not ask and were able to estimate it yourself.

    But how could an estimate from a stranger help you here? If a high professional with huge experience estimates it then this time might be more than a challenge for someone who is totally new in that area.

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    • Former Member

      Jürgen, thank you. Now I see what you've wanted to say.

      But I want to now about clear time of integration and some development (without time on internal procedures).

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    Former Member
    Jul 24, 2017 at 03:28 PM

    Hi Boris,

    Answers to few questions might help you in developing a workable design. Once design is ready you can determine the complexity level of the developed required. If i were you i would look at getting answers to the below questions to start with.

    1) What is the key identifier between OPC, SAP MII and SAP PM identifying the equipment. Is the SAP equipment number?

    2) Which is the system of record for Equipment master data? How should this data be maintained in multiple systems so that all systems are up to date?

    3) How does each system identify the 4 sensors currently? In SAP these are measuring points typically is the measuring point number maintained in SAP MII and OPC as well or are there key identifiers for identifying each?

    4) Should Interface from OPC to SAP MII for sending sensors be real time or a batch or a file drop? Volume of the data?

    5) Does OPC expect any confirmation in return from SAP MII? Apart from equipment master data does OPC expect any other info on sensor data from SAP?

    6) SAP MII to SAP PM integration after the measurement document is created do we have to update SAP MII with any info?

    7) What happens when any of this integration fails.

    Once you answer these questions you should be able to develop a process flow and you would know the number of interfaces and enhancements and if you have an ABAP person with you he/she should be able to tell you the complexity level and help you determine the hours.

    Hope this helps.

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