UNION_BACNET_WHO_HAS_INFO (UNION)ΒΆ

TYPE UNION_BACNET_WHO_HAS_INFO : UNION

Struct which covers the Who-Has service device range filter information.

This structure contains the information for a WHO_HAS application hook. This data type contains filterMin and filterMax, the optional arguments for the Who-Has request, which limit the range of the Device instance numbers which are expected to respond to the Who-Has request. These arguments are omitted from the request if both routine parameters have the value BACNET_NO_FILTER. This data type also contains a Specification-Type attribute which is either object-Name or object-ID, and a tag to choose. If a choice is object-Name, the character string is to transport the name of object and a String-Type to indicate a type of coding a character string.

InOut:

Name

Type

Comment

objectID

IEC_BACNET_OBJECT_ID

Valid if request specified for object identifier.

objectName

IEC_BACNET_STRING

Valid if request specified for object name.