System Limitations of Flex Server

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Issue

This document gives guidelines on the device constraints that effect the system capabilities or the system limitations of the Flex Server. 

Product Line

EcoStruxure Building Activate

Environment

• EcoStruxure Building Activate Flex Server
• EcoStruxure Building Activate Partner Portal

Cause

Understanding this document helps in efficiently designing architecture and Single line Diagrams.

Identifying potential bottlenecks in a system allows for preemptive action. If you know a system parameter has limited device capacity, you can optimize the distribution methods or plan for upgrades before it becomes a critical issue. Understanding the limitations of system allows for the implementation of backup measures.

Resolution

Thes guidelines provide the recommended Flex Server design limits for common applications. These are the configurations that have been tested and supported by Schneider Electric. Environmental factors such as network traffic and radio interference may reduce the stated limits of these guidelines. Deviations from these guidelines may result in performance related issues or product failures.

Flex Server Capacity

Parameter	Maximum Number
Number of total devices (all protocols combined)	50
Number of controlled points (all protocols combined)	500

BACnet

Parameter	Maximum Number
Number of BACnet MSTP devices per RS485 port	32a b e
Number of BACnet MSTP networks per server	2c
Number of BACnet IP devices	50d e

^{a. Maximum number of devices according to protocol specifications and guidelines.}

^{b. BACnet MS/TP adheres to RS485 rules for wiring, wire type, termination etc.}

^{c. There is one onboard RS485 port, an additional port can be added via USB.}

^{d. BACnet IP uses default UDP port 47808 (0xBAC0).}

^{e. The total number of devices across all protocols must not exceed 50}

Modbus

Parameter	Maximum Number
Number of Modbus RTU devices per RS485 port	32a b e
Number of Modbus RTU networks per server	2c
Number of Modbus TCP devices	50d e

^{a. Maximum number of devices according to protocol specifications and guidelines.}

^{b. Modbus RTU adheres to RS485 rules for wiring, wire type, termination etc.}

^{c. There is one onboard RS485 port, an additional port can be added via USB.}

^{d. Modbus TCP uses default TCP port 502.}

^{e. The total number of devices across all protocols must not exceed 50}

LoRa^a

Parameter	Maximum Number
Number of LoRa sensors per server	32b c d
Maximum number of messages per day (per server)	100

^{a. LoRa distances – LoRa is noted for its long range and deep penetration. LoRa transmissions can penetrate glass, metal and concrete found in most buildings. The radio’s antenna and installation can affect the range of LoRa sensors. You must test the transmission and signal strength, when installing wireless devices.}

^{b. Maximum number of devices according to protocol specifications and guidelines.}

^{c. Every LoRaWAN sensor manufacturer has their own decoder.}

^{d. The total number of devices across all protocols must not exceed 50}

SNMP

Parameter	Maximum Number
Number of SNMP devices	10a
Maximum number of messages per day (per server)	1024

^{a. The total number of devices across all protocols must not exceed 50}

Object Limits

Object Type	Maximum Number
Analog values	500a
Digital values	500a
Multi-state values	500a
Analog Input	500a
Multi-state input	500a
Analog output	500a
Digital output	500a
Multi-state output	500a

^{a. The total number of combined points must not exceed 500}