7.7 AirConnectionType ObjectType Definition

7.7.1 Overview

The AirConnectionType is a non-tangible component representing the state of a connection from the ducting system to a filter unit. The connection can be open or closed. The open state represents a state of the ducting system where air can pass through to the filter unit.

It is formally defined in Table 40.

Table 40 – AirConnectionType Definition
Attribute Value
BrowseNameAirConnectionType
IsAbstractFalse
References Node Class BrowseName DataType TypeDefinition Other
Subtype of the BaseObjectType defined in OPC 10000-5
0:HasComponentObjectHumiditySensorMonitoringTypeO
0:HasComponentObjectTemperatureSensorMonitoringTypeO
0:HasComponentObjectAirflowSensorMonitoringTypeO
0:HasComponentObjectGasQualitySensorMonitoringTypeO
0:HasComponentObjectPressureSensorMonitoringTypeO
0:HasPropertyVariableConnectionOpenAirConnectionOpenEnum0:PropertyTypeO,R
0:HasPropertyVariableMalfunction0:Boolean0:PropertyTypeO,R
0:HasComponentMethodOpenO
0:HasComponentMethodCloseO
0:GeneratesEventObjectTypeMalfunctionAlarmType
0:GeneratesEventObjectTypeAirConnectionStatusChangedConditionType
Conformance Units
PAEFS AirConnectionType Basic
PAEFS AirConnectionType Advanced
PAEFS AirConnectionType Events
PAEFS AirConnectionType Methods
Table 41 – AirConnectionType Attribute values for child nodes
BrowsePath Attribute Description
HumidityValue of the humidity sensor
TemperatureValue of the temperature sensor
AirflowValue of the air flow sensor
GasQualityValue of the gas quality sensor
PressureValue of the pressure sensor
ConnectionOpenIndicates the connections status (open, closed, or a state in between)
MalfunctionIndicates that the AirConnection is malfunctioning, i.e., an error occurs in a component that provides functionality for this abstract component; e.g., an error in the ducting system or a valve. True in case of error.

The Open and Close Methods can be called to open or close the connection. In a complex ducting system that consists of a network of joints and junctions, opening or closing the connection may involve switching multiple valves.

The control logic for switching the state of the ducting system is determined by the server implementation.

The air connection may contain optional sensors for humidity, temperature, air flow, gas quality, and air pressure.

The server sends a MalfunctionAlarmType event when the Malfunction property changes.

The AirConnectionStatusChangedConditionType event is triggered when the ConnectionOpen property changes.

7.7.2 Open Method

The Method Open opens or switches all valves of the ducting system so that the air can pass through to the filter device. The signature of this Method is specified below. Table 42 specifies the AddressSpace representation.

Signature

	Open ()
Table 42 – Open Method AddressSpace Definition
Attribute Value
BrowseNameOpen
References Node Class BrowseName DataType TypeDefinition ModellingRule
Conformance Units
PAEFS AirConnectionType Methods

7.7.3 Close Method

The Method Close closes or switches some of the valves in the ducting system so that no air may pass through the ducting system to the device. The signature of this Method is specified below. Table 43 specifies the AddressSpace representation.

Signature

	Close ()
Table 43 – Close Method AddressSpace Definition
Attribute Value
BrowseNameClose
References Node Class BrowseName DataType TypeDefinition ModellingRule
Conformance Units
PAEFS AirConnectionType Methods