Example: Determine plant object type (RT Unified)

Example: Determine plant object type

Scenario

For a new brewery location, two employees of an engineering office configure the process visualization and plant-specific parameters. The employees develop a configuration concept for this.

The following examples shows how process visualization and object-oriented configured mesh with each other.

Determining plant object types

How you determine plant object types by analyzing the plant structure depends on the context:

In the WinCC Runtime Unified context, you view the plant "from the bottom" in the process view. Functional units are in the background compared to plant objects of the field and process levels. The functional units are still necessary for a complete mapping of the plant.
In the context of plant-specific KPIs, look at the plant "from the top" in the plant view. Plant objects of the field and process levels may no longer be relevant.

The following figure is a schematic representation of the analysis sequence of the plant structure for defining the plant object types:

①	Analyze the plant structure: The brewery consists of the three plant units, "Delivery/Storage", "Processing" and "Bottling". Various processes run in the plant sections.
②	Determining relevant plant objects for monitoring process and productivity: These plant objects are the basis for mapping the plant hierarchy.
③	Defining plant object types: Plant objects used multiple times are mapped using a common plant object type. The data structure and context information is configured for each plant object type.
		Brewery Plant-specific parameters: Cumulative characteristics of productivity
		Unit for delivery and storage of ingredients Plant-specific parameters: Characteristics for duration of delivery
		Tank for storage of ingredients Process visualization: Monitoring temperature and fill level
		Unit for processing Plant-specific parameters: Characteristics of productivity
		"Mashing" "Batches taken out of mash" Process visualization: Monitoring temperature and pressure "Pump back batches taken out of mash", check: "Iodine test": Process visualization: Monitoring temperature and pressure
		"Purifying" Process visualization: Monitoring temperature and pressure
		"Wort boiling" Process visualization: Monitoring temperature and pressure Whirlpooling Addition of yeast and fermenting Storage
		Unit for bottling and packaging Plant-specific parameters: Characteristics for period of change in production, unplanned downtime and produced quantities
		Bottling process Process visualization: Monitoring temperature / control of filling
		Process for packaging the beer bottles on pallets Process visualization: Monitoring packaging

Note

The data structure of a plant object type is often reflected in the function blocks of the user program. In such a case you can create plant object types automatically. Consultation with the programmer is recommended especially for plant object types with strong links to the PLC.

Example: Determine plant object type (RT Unified) - WinCC Unified

Configuring plant hierarchies (RT Unified)