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Configuring Systems Engineering > Customizing Visio diagram templates

Setting interface direction for new connections

In the ApplicationInfo section, the PortDirections element defines the interface direction at a new connection's begin point and end point, set via the StartPortDirection and EndPortDirection tags.

<PortDirections>
<StartPortDirection>begin</StartPortDirection>
<EndPortDirection>end</EndPortDirection>
</PortDirections>
  • StartPortDirection — replace begin with:
    • Input: the interface at the connection begin point can only consume a payload.
    • Output (default): the interface at the connection begin point can only generate a payload.
  • EndPortDirection — replace end with:
    • Input (default): the interface at the connection end point can only consume a payload.
    • Output: the interface at the connection end point can only generate a payload.

Source: https://docs.sw.siemens.com/en-US/doc/282219420/PL20251212545240207.plm00038/xid847139 · retrieved Fri Jul 10 2026 00:00:00 GMT+0000 (Coordinated Universal Time)