The SlotType represents a physical slot where a module can attach to, e.g., in a modular Asset like a PLC backplane or modular IO device.

The SlotType is formally defined in Table 36.

Table 36 – SlotType definition

Attribute

Value

BrowseName

3:SlotType

IsAbstract

False

References

Node Class

BrowseName

DataType

TypeDefinition

Other

Subtype of the 3:AssetConnectorType

0:HasProperty

Variable

3:Id

0:UInt16

0:PropertyType

M

0:HasProperty

Variable

3:LogicalId

0:UInt16

0:PropertyType

O

ConformanceUnits

UAFX AssetConnector Slot Base

Id is from AssetConnectorType and is mandatory in SlotType. It shall start at 1 and increment by 1 for each physical slot in a rack or device.

The optional LogicalId represents the“logical slot number that might be assigned to a physical ID. For example, module 3 is physically plugged into slot 3, but internally it is used as slot 8.

Each Slot that has a module plugged into it shall have a HasAttachedComponent Reference (see OPC 10000-23) indicating the Asset that occupies the slot.