New (and Edit) point window

New (and Edit) point window

This window configures the point properties.

Figure 208. New window for the Bacnet Point Manager

This window opens when you expand Config > Drivers > BacnetNetwork > BacnetDevice, double-click Points and click New or select a row and click Edit in the Bacnet Point Manager.

Property	Value	Description
Name	text (defaults to the name in the station for the proxy point)	Identifies the object (point, export folder, etc.) including an `Object Id` and `Instance Number` or property identifier, which ensures a unique name. This name is in the format: objectType_<instance number> For example and `Event State` may be named: AHU1–Frz_Stat-eventState. Refer also to `Object Id`, `Instance Number`. The exception to this rule is the name for presentValuePoints, where the system uses only the `Object Name` for the point name. For example: AHU1–Frz_Stat. The system replaces each slash (/) character, if any, with a period (.) in the name. This enforces (externally) the BACnet requirement for unique names for all objects in a device. This is a point-name only. It does not affect the name of the remote BACnet device.
Type	drop-down list of BACnet objects	Identifies the type of BACnet object, for example, Analog Input, Analog Output, Calendar, Schedule, Structured View, File, Trend Log, BooleanWritable or other. Writable components typically offer more type selections than read-only points, such as: Two read-only: input or value type, e.g. Binary Input or Binary Value object. Two writable: output or prioritized value type, e.g. Binary Output or Binary Value Prioritized object. The screen capture shows an example of type selections when exporting an NdioBooleanWritable point.
Enabled	`true` (default) or `false`	Activates (`true`) and deactivates (`false`) use of the object (network, device, point, component, table, schedule, descriptor, etc.).
Object ID	Object Id and Instance Number	Identifies each device and component by the type of entity (`Object Id`) combined with a unique `Instance Number`. For devices (controllers, instruments, meters, etc.), `Instance Number` must be unique within the BACnet internetwork. For components (points, schedules, analog inputs, files, groups, multi state inputs, etc.), it must be unique within the device.
Property ID	drop-down list	Specifies a number in the `Recipient List` for the station. This integer from the BACnet Notification Class object of the sending device, must match this ID in the Alarms device extension of the receiving device.
Index	number	Provides a numeric index into the property array. Applies only to an arrayed property, such as Priority Array, otherwise it defaults `-1` for no index.
Tuning Policy Name	drop-down list	Selects a network tuning policy by name. This policy defines stale time and minimum and maximum update times. During polling, the system uses the tuning policy to evaluate both write requests and the acceptability (freshness) of read requests.
Data Type	read-only	Reports the ASN (Abstract Syntax Notation) data type for a device property. The driver automatically converts values to this appropriate type. For example, an analog input present value is an ASN REAL that can be interpreted by a string point as a character string. ENUMERATED is another example.
Read	read-only	Indicates if the point’s value was polled, subscribed or resulted from a change of value.
Write	read-only	Indicates if the proxy extension is read-only or can be written to. read only indicates the proxy extension cannot be written to. writable or ok indicates that the proxy extension can be written to. For writable proxy extensions, this property indicates either that the last write occurred within the effective tuning policy period or, if a write operation failed, it provides descriptive text. For example, if you create a writable point for a read-only object (say, a NumericWritable for presentValue of an Analog_Input object) and attempt to write from the system, the write status may show: Property:Write Access Denied. If the error is actually a BACnet error, the colon-separated format contains the error class and error code returned by the device.
Device Facets	additional properties	Opens a Config Facets window for defining device facets.
Facets	additional properties	Opens a Config Facets window for defining binary facets.
Conversion	drop-down list (defaults to Default)	Configures the facets to use when converting values from device facets to point facets.