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5.2 OPC UA ObjectTypes ToC Previous Next

5.2.8 ControlChannelType ToC Previous Next index

readme_files/image009.png Figure 7 ControlChannelType overview

The ControlChannelType is used for control channels of single colour elements within a stack element (e.g. RGB elements would use three ControlChannels, one for each controllable colour). In Figure 7, a graphical overview is given. It is formally defined in Table 26.

Table 26 – ControlChannelType Definition

Attribute Value        
BrowseName ControlChannelType        
IsAbstract False        
Description Used for control channels of single colour elements within a stack element (e.g. RGB elements would use three ControlChannels, one for each controllable colour).        
References Node Class BrowseName DataType TypeDefinition Other
Subtype of the BaseObjectType defined in OPC 10000-5 i.e. inheriting the InstanceDeclarations of that Node.          
0:HasProperty Variable SignalOn 0:Boolean 0:PropertyType M
0:HasComponent Variable ChannelColor SignalColor 0:BaseDataVariableType M
0:HasComponent Variable SignalMode SignalModeLight 0:BaseDataVariableType M
0:HasComponent Variable Intensity 0:Float 0:AnalogItemType O

SignalOn indicates if the colour is switched on.

ChannelColor shows the channel’s colour.

SignalMode indicates in what mode (continuously on, blinking, flashing) the channel operates when switched on.

Intensity shows the channel’s intensity, thus its brightness. The mandatory EURange Property of the Variable indicates the lowest and highest value and thereby allows to calculate the percentage represented by the value. The lowest value is interpreted as 0 percent, the highest is interpreted as 100 percent.

The InstanceDeclarations of the ControlChannelType have the Attribute values defined in Table 27.

Table 27 – ControlChannelType Attribute values for child Nodes

Source Path Value Description
SignalOn - Indicates if the colour is switched on.
ChannelColor - Indicates in what mode (continuously on, blinking, flashing) the channel operates when switched on.
SignalMode - Contains a list of audio signals used by this acoustic stacklight element.
Intensity - Shows the channel’s intensity, thus its brightness. The mandatory EURange Property of the Variable indicates the lowest and highest value and thereby allows to calculate the percentage represented by the value. The lowest value is interpreted as 0 percent, the highest is interpreted as 100 percent.

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