The Object Inputs (AVI, BVI, MVI) convert a raw object input into a value(s) that can be used by other function blocks.
When an Object Input is added to the wiresheet, the object appears in the Object Configuration View.
You can add an Object Input from:
To add a new Object Input:
Note: If adding an Object Input to an application, browse through to the appropriate application on the Nav palette.
Note: The Input option is selected by default under Select Point Type.
Note: You cannot add an Object Input to a macro. You can only add a
Software point with Point Type as Constant to a macro.
You cannot add a Network Output to a macro.
To expose the Object Inputs you have added:
| Name | Definition |
| Object Name | The name of the Object Input. This field is editable. |
| Object Type | Indicates if the object input is of type AV, BV or MSV. This field is non-editable. |
| Object Instance | A unique number that is automatically assigned to the object. This field is editable. If you try replacing the instance value with a value of your choice, the replacement is successful only if the value of your choice is not in use by any other object. |
| Update Interval | The rate at which the controller compares the last value propagated to the network against the current value to determine whether significant change has occurred that warrants the new value to be propagated. Since 'NetoworkInput' objects are never propagated back to the network, it is recommended that this value should be let at the default value of 15 seconds. |
| Object Category | Displays the unit of measurement for the object input. |
| Unit | Displays the engineering unit based on the object category. |
| Sub-Category | Displays the enumeration type for the object inputs. The field Unit is renamed as Sub-Category if the object category selection is unitless. |
| Fail Detect Enabled | Set the Fail Detect Enabled to either
True or False. if the object is bound and if it has not received an update from the Bacnet network source in the fail detect time, then an alarm is generated and the presentValue is set to Invalid. Note that fail detect time depends on the update rate configured. False means the object retains the last value that was written to it until a Bacnet network source changes it or the Honeywell Spyder has a power outage or resets. Set the Fail Detect Enabled of each object input to either True or False.
|
| Update Rate | This is the rate at which the object expects an update from the BACnet network. When 'Fail Detect' is enabled , the controller will report an alarm if 5 consecutive updates are not received. If binding is accomplished by polling the source device, then the poll rate is set to the configured 'Update rate'. If 5 successive polls fail, then the controller will report an alarm. (See the 'Poll/Push' column in the 'Bacnet Link Manager View') |
While in the midst of creating an ControlProgram/Application, if you need to quickly add an Object Input, use the Network Input item on the Spyder Palette.
Note: You cannot add an Object Input to a macro. You can only add a Software point with Point Type as Constant to a macro.
To add an Object Input to an ControlProgram/Application:
Once you have created an Object Input, you can connect an Object Input to an Object Output/Function Block or Physical point by left-clicking on the output of an Object Input and dragging your mouse to the input of an Object Output/Function Block or Physical point.