Knx Proxy Ext

This Proxy Ext is common to all points, both Read and Write types of Boolean, Numeric, String and Enum.

All KNXnet/IP proxy extension types (KnxBooleanProxyExt, KnxNumericProxyExt, KnxStringProxyExt and KnxEnumProxyExt) share the same set of configuration properties. Any instance of any of the KNXnet/IP proxy extension types is a proxy for one or more group address in a KNX Installation.

The KNXnet/IP proxy extension types take on the readable-writable personality of the control point they are attached to. For example, a KnxNumericProxyExt, when used as an extension on a NumericPoint has read only functionality, but when used on as an extension on a NumericWritable can read and write the attribute values.

The KNXnet/IP proxy extension types are the point-level component in the Niagara architecture.

Type Value Description
Status [component] text Read-only field. Indicates the condition of the component at last polling.
  • {ok} indicates that the component is licensed and polling successfully.
  • {down} indicates that polling is unsuccessful, perhaps because of an incorrect property.
  • {disabled} indicates that the Enable property is set to false.
  • {fault} indicates another problem.
Fault Cause text Read-only field. If the network, component, or extension is in fault, indicates the reason. This field is empty unless a fault exists.
Enabled true or false Enables or Disables communication to the associated device from the KNXnet/IP driver.
Device Facets    
Conversion    
Tuning Policy Name    
Read Value    
Write Value    
KNX ID    
Group Addresses   A list of group addresses from which the value of this proxy extension can be updated. The first group address in the list is the primary group address and cannot be deleted, but can be edited. The primary group address is the address to which any read or write request will be directed from this proxy extension. The remaining group addresses are used to update the proxy extension output value whenever a message is received from any of these addresses.
Data Value Type ID    
Poll Enable true or false Enable or Disable to add/remove the group address(es) configured on this proxy extension, to the Poll Scheduler. Note that in KNX, a group address will respond to a read request only if it is configured to do so, so for group addresses where there is no bus device configured to send the value in response to a read, it would make sense to not poll the group address. In other cases, it may simply be desired to not put additional traffic on the bus if not absolutely necessary.
Poll once on subscribed true or false This is used to force a poll whenever the point enters a subscribed state, such as when a user views it on a point list. If enabled, the resulting poll is independent, and will occur independently of any other poll setting (for instance, it will occur even if Poll Enabled is false, or if the Poll Scheduler rate is zero or disabled.) The behavior can be modified by the Poll Until Answer Received On Poll Once property.
Poll once on operational true or false This is used to force a poll whenever the point status changes from disabled to enabled, or down to up, or fault to noFault. If enabled, the resulting poll is independent, and will occur independently of any other poll setting (for instance, it will occur even if Poll Enabled is false, or if the Poll Scheduler rate is zero or disabled.) The behavior can be modified by the Poll Until Answer Received On Poll Once property.
Poll until answer after poll once true or false If Poll Once On Subscribed or Poll Once On Operational are set to true, then if this value is also set to true, the poll once behavior is modified to poll until one valid value is received instead of poll once and forget. This has the effect of subscribing the point to the poll scheduler until such time as the point receives data addressed to the first group address in the list provided the value is a valid value for this point type. When these conditions are satisfied, the point is unregistered from the poll scheduler.
Poll after write true or false This is independent of the Poll Enable property. It is used to enable or disable a poll for a value after a write.
Poll frequency Fast, Normal, or Slow Poll rates are determined by the Poll Scheduler settings.