N2 Mapping Tab - Johnson Controls - Metasys - LIT-12011147 - Software Application - Controller Configuration Tool - 16.0

Controller Tool Help
Product name
Controller Configuration Tool
Document type
User Guide
Document number
LIT-12011147
Version
16.0
Revision date
2023-10-02

The N2 Mapping tab contains multiple subtabs, depending on your system selection choices.

Table 1. N2 Mapping Tab

Field

Description

BACnet Exposed

Indicates whether the point is BACnet exposed. Clear the check box for a point if you do not want it to be BACnet exposed. For more information, see Adding and Removing N2 Points.

Point Address

Point mapping address. If necessary, you can edit this address or generate a new address for the point. See the following row descriptions for Set (1...n), Set (Max+1), Set (N2), and Set (0).

Attribute

Point attributes: Present Value and Default Value.

Use the following guidelines to determine the correct attribute:
  • If you are reading a value, use Present Value.
  • If you are writing a value to the controller, choose:
    • Present Value for Network Input, Analog Output, Position Adjust Output, Binary Output
    • Default Value for element of a module
      Note: If the element is an input of a module and connected from elsewhere in the application, the default value is never used. If the element is an output of a module, the value is calculated in the module and the default value is never used.

Point Type
Point type (read only):
  • AI: Analog Input
  • AO: Analog Output
  • BI: Binary Input
  • BO: Binary Output
  • ADF: Analog Data Float
  • BD: Binary Data
  • ADI: Analog Data Integer

If you intend to write to the point from a supervisor, select AO, BO, ADF, ADI, or BD. If you are reading a value, choose AI, BI, ADF, ADI, or BD.

Short Name

First 10 characters of the Name, Standard Name, or Attribute ID of an object. The standard name is used if the Name is blank. The Attribute ID is used if the Standard Name is used and set to Use Attribute String.

Note: Click the column heading to sort in reverse alphabetical order.

Long Name

First 24 characters of the Short Name if the Description field is blank, or displays the first 24 characters of the Description if the Description field is not blank.

Default Value

Default value of the point. If the point does not have a default value, *** appears in the table.

Units

Units the point uses.

Device Type

Sets what device type is sent when polled via the N2 trunk:

  • AHU: Generation 1 Application Specific (AS-AHU)
  • VAV: Generation 1 Application Specific (AS-VAV)
  • UNT: Generation 1 Application Specific (AS-UNT)
  • VND: VMA1400, DX9100, all other controllers: DC9100, DCM, DR9100, LCP, MIG, NDM, PHX, TC9100, XT9100, XTM, XM1 (XBN), XM2 (XRM), XM3 (XRL or XRE), XM4 (XRL 2x2), XM5 (XRL 2x3), XM^ (XRM 2x2), XM7 (XRM 2x3)

Set (1...n)

Provides automatic setting of all addresses using (1...n) by point type.

Set (Max+1)

Provides automatic setting of all undefined addresses using (Max+1) by point type.

Set (N2)
Provides automatic setting of all addresses to N2 compatibility based on Compatibility Options selection within System Selection Tree:
  • When Compatibility Options is selected, the points in the standard application that are the same as the N2 legacy application are mapped. All other points are set to zero and the user must assign a valid address.
  • When Compatibility Options is not selected, this button functions the same as Set (0).

Set (0)

Resets all addresses to 0.

Create PRN File

Creates a file similar to the existing N2 application PRN file.

Create DDL File

Creates a file similar to the existing N2 application DDL file.

Edit

Use to edit the point address and attribute.

Remove

Removes the N2 object and returns the N2 Mapping screen to create mode.

Close

Closes the Define Hardware dialog box.

Note: You must apply or cancel any edits before you close the Define Hardware dialog box.

Create

 Use to create N2 mapping for a device.

Opens the help system.