<connection block reference assignment>

──<connection block reference variable>── := ──────────────────────────►
►─┬─<null value>──────────────────────────────────────────┬────────────┤
  ├─<connection library designator>───────────────────────┤
  ├─<connection block reference variable>─────────────────┤
  └─ THIS ─┬──────────────────────────────────────────────┤
           └─ ( ──<connection block type identifier>── ) ─┘

A connection block reference assignment associates a connection block reference variable with a particular connection block instance.