Multi-site Facility Management

The problem

A portfolio of stores or buildings is maintained reactively by local contractors, and the facility team has no remote view of equipment status, alarms or energy across sites.

Solution overview

MILESGO gateways collect data from VRV / VRF air conditioning systems, refrigeration case and rack controllers, electricity meters, door, intrusion and cabinet-open contacts, temperature and humidity sensors over Modbus RTU / Modbus TCP / BACnet/IP, and deliver it to a cloud platform (MQTT), the operations / command centre, SMS, email and messaging alarms as MQTT / OPC UA. Field equipment keeps its own protocol and control logic; integration is done by configuration and point mapping, not custom code.

Typical scope

VRV / VRF air conditioning systems
refrigeration case and rack controllers
electricity meters
door, intrusion and cabinet-open contacts
temperature and humidity sensors

Protocol path

Modbus RTU / Modbus TCP / BACnet/IP → MQTT / OPC UA

Implementation checklist for the project manager

Standardise one configuration template per equipment type so further sites are copied, not rebuilt.
Fix a site / asset naming convention before the first site so data from all sites can be compared.
Check 4G signal and the SIM data plan at every site before committing to cellular backhaul.
Keep OT networks segregated and use VPN for remote access instead of opening ports to the internet.
List dashboard users and roles, and configure user permissions accordingly.
Roll out in phases: pilot one site or area, confirm data quality, then replicate.

Project deliverables

Signed point table and protocol mapping
Gateway configuration files and backups
IP address plan and network drawing
FAT and SAT test records
As-built documentation and operator training

System architecture

Field layer: VRV / VRF air conditioning systems, refrigeration case and rack controllers, electricity meters, door, intrusion and cabinet-open contacts, temperature and humidity sensors, connected over Modbus RTU / Modbus TCP / BACnet/IP. Edge and integration layer: MILESGO protocol gateways and edge controllers, mounted on DIN rail in existing panels, polling each device, time-stamping values and buffering them locally. Upper layer: a cloud platform (MQTT), the operations / command centre, SMS, email and messaging alarms, which receives the data as MQTT / OPC UA. Remote access for maintenance runs over VPN rather than open internet ports.

System composition

Field devices: VRV / VRF air conditioning systems, refrigeration case and rack controllers, electricity meters, door, intrusion and cabinet-open contacts, temperature and humidity sensors
Edge / integration: MILESGO protocol gateways and edge controllers
Upper systems: a cloud platform (MQTT), the operations / command centre, SMS, email and messaging alarms (MQTT / OPC UA)
Tools and commissioning: Web-based configuration, point table import/export (Excel), off-site simulation and on-site diagnostic tools

Software and AI capabilities

Alarm noise reduction and root-cause groupingRoadmap
Predictive maintenance indicators from equipment trendsRoadmap

Delivery steps

1
Site survey and point list
Inventory devices, protocols, register maps, panel space, power and network paths.
2
Design and point table sign-off
Map every point to the target protocol and system; agree it with the client and the upper-system contractor.
3
Configuration and FAT
Build the gateway configuration off site, simulate it and test against the signed point table.
4
Installation and wiring
Mount gateways on DIN rail, wire RS-485 / I/O / Ethernet, apply the IP plan.
5
SAT and alarm tests
Verify values against local readings, test every alarm and command end to end.
6
Handover and support
Hand over configuration backups, point table and as-built documents; train operators.

Customer value

Remote diagnosis and fewer site visits
Configuration templates reused across sites
One view of all subsystems instead of separate vendor consoles
Alarms reach the right person by SMS, email or messaging apps

Tell us about your project

Send the protocols, point count and target system. A sales and engineering pair reviews every submission.

Discuss Your Project