The following examples describe possible topologies based on different systems. There is no obligation to build the systems based on the following examples.

Handheld Tightening System Example

The following figure describes a basic Handheld Tightening System which consists of a handheld controller connected to a cable tool via a servo and cable. The controller has an attached memory device and it is also connected to a socket selector.

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Figure 13- Handheld Tightening System Example

Handheld Tightening System with Battery Tool Example

The following figure describes a basic Handheld Tightening System which consists of a handheld controller connected to a cable tool via a servo and cable and a battery tool. The controller has an attached memory device and it is also connected to a socket selector.

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Figure 14- Handheld Tightening System with Battery Tool Example

Fixtured Tightening System Example

The following figure describes a Fixtured Tightening System with two tightening spindles. Both the spindles are managed by one controller and it needs two servos to drive the two spindles. The controller has an attached memory device.

Note:This example does not model cables connected to spindles. There is no restriction in modeling a cable in the Fixtured Tightening System.

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Figure 15- Fixtured Tightening System Example

Intelligent Tool Tightening System Example

The following figure describes an Intelligent Tool Tightening System which consists of a Tool that has an embedded controller, servo and an attached memory device.

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Figure 16- Intelligent Tool Tightening System Example

Flow Drill Tightening System Example

The following figure describes a Flow Drill Tightening System which consists of one spindle with one servo to drive in the screw. In the spindle there is a torque sensor to measure the torque at the screw and a depth sensor to measure the advancement of the screw into the part. Additionally, there is a feeding controller which ensures that the parts are available at the tightening location. The feeder stocks the fasteners and separates them.

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Figure 17- Flow Drill Tightening System Example

OPC UA References for Assets

An asset defined in the Tightening System can reference other assets in multiple ways such as Logical Connection, Network Connection, Physical Connection, Component (Attached Component, Built-in Component, Sub-Part, etc.), ConnectsTo, IsConnectedTo, etc.

For this version of the specification, only a generic reference AssociatedWithis used to enable the topological infrastructure which will be used by the client applications to build required tree view or hierarchies or a mesh of inter-linked nodes. There is no restriction on adding additional references.

Note:The assets model defined in Tightening System is flexible to cover various type of systems. For example, a Controller and MemoryDevice can have HasAttachedComponentor HasBuiltInComponent reference.

OPC UA base specifications may standardize different set of references which might be reused in the future versions of this specification.

Note: Table 109provides few examples as general information which may be standardized in future versions of this specification or other common specifications.

Table 109- OPC UA Reference Examples

Source Object

Possible Reference Types

Target Object

Controller

ConnectsTo

IsConnectedTo

IsPhysicallyConnectedTo

Tool

Controller

ConnectsTo

IsConnectedTo

IsPhysicallyConnectedTo

Controls

Servo

Controller

ConnectsTo

IsConnectedTo

IsPhysicallyConnectedTo

Controls

Controller

Controller

HasAttachedComponent

HasContainedComponent

HasBuiltInComponent

MemoryDevice

Controller

ConnectsTo

IsConnectedTo

IsPhysicallyConnectedTo

Controls

Feeder

Controller

HasAttachedComponent

HasContainedComponent

HasBuiltInComponent

Sensor

Controller

ConnectsTo

IsConnectedTo

IsPhysicallyConnectedTo

Controls

Accessory

Controller

HasAttachedComponent

HasContainedComponent

HasBuiltInComponent

SubComponent

Tool

ConnectsTo

IsConnectedTo

IsPhysicallyConnectedTo

Controls

Controller

Tool

HasAttachedComponent

HasContainedComponent

HasBuiltInComponent

HasLogicalConnection

Battery

Tool

HasAttachedComponent

HasContainedComponent

HasBuiltInComponent

HasLogicalConnection

Sensor

Tool

ConnectsTo

IsConnectedTo

IsPhysicallyConnectedTo

Controls

Accessory

Tool

HasAttachedComponent

HasContainedComponent

HasBuiltInComponent

SubComponent

Servo

ConnectsTo

IsConnectedTo

IsPhysicallyConnectedTo

Tool

PowerSupply

ConnectsTo

IsConnectedTo

IsPhysicallyConnectedTo

Servo

Battery

ConnectsTo

IsConnectedTo

PowerSupply

Battery

ConnectsTo

IsConnectedTo

Servo

Cable

IsPhysicallyConnectedTo

CommLinkTo

Controller

Cable

IsPhysicallyConnectedTo

CommLinkTo

Servo

Cable

IsPhysicallyConnectedTo

CommLinkTo

Tool

Cable

IsPhysicallyConnectedTo

CommLinkTo

Feeder

Cable

IsPhysicallyConnectedTo

CommLinkTo

PowerSupply

Cable

IsPhysicallyConnectedTo

CommLinkTo

Sensor

Cable

IsPhysicallyConnectedTo

CommLinkTo

Accessory

Cable

IsPhysicallyConnectedTo

CommLinkTo

SubComponent