System Capacity Indicator - Johnson Controls - Metasys - LIT-12011147 - Software Application - Controller Configuration Tool - 16.0

Controller Tool Help

Brand
Johnson Controls
Metasys
Product name
Controller Configuration Tool
Document type
User Guide
Document number
LIT-12011147
Version
16.0
Revision date
2023-10-02
Language
English

The system capacity indicator displays the percentage of maximum objects that your application is currently using. This percentage is calculated by the application's object count divided by the maximum object count of the selected controller model (refer to the controller's technical specifications). For example, 2,500 objects in the application divided by 3,000 maximum objects indicates 83% capacity. See the following table for determining object counts.

Note: If your system capacity is greater than 85%, we recommend that you run Simulation mode before you transfer the application to the device. This step confirms you have not exceeded the controller Object ID (OID) count.
Depending on the device you are using, you may see one of the following error messages when starting Simulation mode or when transferring to a device:
  • BACnet OID count exceeded maximum limit of [number]. Devices have maximum BACoid object (Object Count) capacity limits. To find out more about controller BACoid Object limits, see the following table.
  • Controller OID count [number] exceeded maximum limit of [number]. This error only occurs when you start Simulation mode. When you transfer to a device, this results in a transfer failure with an error of instances deleted. The value of this limit accounts for OIDs used in a controller for objects that are removed for Simulation, such as hardware points. To find out more about controller OID Object limits, see the following table.
Table 1. BACnet and Controller OID Limits
Controller Type Controller Name BACnet OID Limits Controller OID Limits

Advanced Application Controller

CH-PCA3611

FX-PCA2611

FX-PCA2612

FX-PCA3611

MS-FAC2611

MS-FAC2612

MS-FAC3611

4,112

11,200

C4-CGM09090

CH-PCA2513

CH-PCA3613

CH-PCA4911

F4-CGM09090

FX-PCA2513

FX-PCA3613

FX-PCA4911

M4-CGM09090

MS-FAC2513

MS-FAC3613

MS-FAC4911

6,000

14,000

General Purpose Controller

FX-PCG16XX

FX-PCG26XX

MS-FCU1611

MS-FEC16XX

MS-FEC26XX

3,000

7,000

FX-PCG2511

MS-FEC2511

6,000

14,000

Network Control Engine (NCE) and SNC Controller

MS-NCE25/NIE29, M4-SNC25150, M4-SNC16120

6,000

14,000

Point Expansion Module

CH-PCX2713

CH-PCX3723

CH-PCX3733

FX-PCX1711

FX-PCX2711

FX-PCX2721

FX-PCX2723

FX-PCX3711

FX-PCX3721

FX-PCX3723

FX-PCX3731

FX-PCX3733

FX-PCX4711

MS-IOM171X

MS-IOM271X

MS-IOM2721

MS-IOM2723

MS-IOM371X

MS-IOM3721

MS-IOM3723

MS-IOM3731

MS-IOM3732

MS-IOM3733

MS-IOM471X

3,000

7,000

VAV Controller

C4-CVM03050

CH-PCV1617

CH-PCV1632

CH-PCV1930

F4-CVM03050

FX-PCV1610

FX-PCV1615

FX-PCV1617

FX-PCV1620

FX-PCV1626

FX-PCV1628

FX-PCV1630

FX-PCV1632

FX-PCV1656

FX-PCV1826

FX-PCV1832

M4-CVM03050

MS-VAV1611

MS-VMA1610

MS-VMA1615

MS-VMA1617

MS-VMA1620

MS-VMA1626

MS-VMA1628

MS-VMA1630

MS-VMA1632

MS-VMA1656

MS-VMA1826

MS-VMA1832

MS-VMA1930

FX-PCV1930

3,000

7,000

Table 2. BACnet OID Count (Object Count) Determination
Type Number of Objects
Module 1 object
Physical and Miscellaneous Inputs and Outputs 3 objects (input/output, priority connection, actual object)
Network Input 1 object
Network Output 1 object
Connected and Disconnected Logic Block Ports 1 object per 1 port
Port Not Exposed for Connection 1 object per port
Point Not Exposed for BACnet 1 object per point
Connecting Lines Not counted as objects