The GsdGenIoChannelQualityType represents the quality information of one IO Channel.

Table 25 – GsdGenIoChannelQualityType definition

Attribute	Value
BrowseName	GsdGenIoChannelQualityType
IsAbstract	False
References	Node Class	BrowseName	DataType	TypeDefinition	Other
Subtype of the 0:BaseObjectType defined in OPC 10000-5
0:HasProperty	Variable	BitOffset	0:UInt16	0:PropertyType	M, RO
0:HasProperty	Variable	Format	GsdGenIoQualityFormatEnumeration	0:PropertyType	M, RO
Conformance Units
PNGSDGM IO Data

The BitOffset Property shall be equal to the content of the “BitOffset” attribute of the GSDML “Quality” child element of the “Channel” element. It contains the offset in bits, starting with 0, into the data defined by the “DataItem/BitDataItem” elements. It points to the start of the channel quality data.

The Format Property shall be equal to the content of the “Format” attribute of the GSDML “Quality” child element of the “Channel” element. It specifies the size and interpretation of the quality data. See GsdGenIoQualityFormatEnumeration in 10.6 for details.

The GsdGenIoChannelQualityType Object shall relate to the GsdGenIoDataItemVariableType Variable which represents the segment of the IO Data containing the quality data it references with a 0:AssociatedWith ReferenceType as shown in Figure 11.