Group Network Variables

You can group multiple points spread across NVs into a single new NV or add it to an existing one. The points must be available on the wiresheet to make such a grouping possible. Multiple points of an NV of the type NVI and NCI can be grouped together to create a new NV. The new NV created can be saved as an NVI or NCI. When one or more NVs are grouped 

Also, invalid points can be grouped with fields of another NV to create a new  NV.

You can also group a single point belonging to an NV. In this case a new NV is created.  

Note: The Group as NV option is not available for software points of type:

To group fields as NVs:

  1. On the NV Configuration View, select the fields that you want to group from the Software points available on wiresheet list.

Note: Use the CTRL key on your keyboard to select the different fields you want to group.

  1. Click the Group as NV button. The Confirmation dialog box appears, if you are trying to group fields belonging to NVI or NCI. Also, the fields are deleted from the NVs from which they are being selected. If a field was the only field in an NV, and it was selected to be grouped as an NV, the NV from which it is being selected is deleted. You don't see this dialog box if you are grouping fields of NVOs.
  2. Click OK. The Group as NV dialog box appears.
  3. Fill the necessary information in the fields as explained in the following table.
Name Definition
Group as New NV Select this option if you want to save the fields you want to group as a new NV. In this case, you can enter a new NV Name.

Note: The new NV is created on the same folder on which the Group as NV option is invoked. Example: If you have a ControlProgram which has an Application2 residing in Application1, if you group points on the NV Configuration View of Application2, the new NV is created in the Application2 folder. However, if you grouped NVs on the NV Configuration View of the Application1, the new NV is created in the Application1 folder.

Add to Existing NV Select this option if you want to add the points you want to group to an existing NV. In this case, you can select an existing custom NVI/NCI from the NV Name list.

On selecting this option, the fields of the NV to which the new points are added are listed in the Fields Properties table.

Note: In the case where the selected NVI was of a SNVT type, the NV is converted to a UNVT after grouping of points is done

NV Name The name that you can configure this NV with.
NV Type The NV type you want to save the selected fields as. You can choose NVI or NCI.
Fields Properties Displays the following properties for each field:
  • Field Name
  • Data Category
  • Network Data Type
  • Internal Data Type
Up Arrow Use this button to reorder a field.
Down Arrow Use this button to reorder a field.
Field Name User defined field name.
Data Category Select the data type for the NV fields.
Network Data Type It is the engineering unit received by the Honeywell Spyder controller. Specify the Network Data Type. Based on data category selected, the drop-down list changes.
Internal Data Type It is the unit(s) of the output of the Network Variable. Specify the Internal Data Type. Based on data category selected, the drop-down list changes.
Value You can edit this option for an NCI.
UNVT Name Enter UNVT Name in case you are creating a new NVI.
  1. Click OK. The new NV is created and appears in the NVs list in the NV Configuration View. If you select Add to an existing NV, the fields are added to the existing NV and can be seen in the NVs list.

The following table summarizes how you can group a point(s) of an NV.

NVI NCI NVO Valid Software Input Point Invalid Software Input point Software Input Point  configured as Constant Valid Software Output Point Invalid Software Output point
NVI Yes Yes No Yes Yes Yes No No
NCI Yes Yes No Yes Yes Yes No No
Valid Software Input Point Yes Yes No Yes Yes Yes No No
Invalid Software Input point Yes Yes No Yes Yes Yes No No
Software Input Point  configured as Constant Yes Yes No Yes Yes Yes No No
NVO No No Yes No No No Yes Yes