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

System Capacity Indicator - Johnson Controls - Metasys - LIT-12011147 - Software Application - Controller Configuration Tool - 15.0

Controller Tool Help

Product

Controls > Control Tools > Controller Configuration Tool

Document type

User Guide

Document number

LIT-12011147

Version

15.0

Revision date

2022-11-18

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
Advanced Application Controller	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
General Purpose Controller	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