Chiller Plant Optimization
Bài toán
Chillers, chilled and condenser water pumps and cooling towers run on fixed schedules with no measured cooling output, so nobody can tell how efficiently the plant performs or where to start optimising.
Tổng quan giải pháp
MILESGO gateways collect data from chillers, chilled water pumps, condenser water pumps, cooling towers, BTU / heat meters, variable frequency drives (VFD), electricity meters over Modbus RTU / Modbus TCP / BACnet/IP / M-Bus, and deliver it to the BMS, the energy management system, WEB HMI panels as BACnet/IP / 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
- chillers
- chilled water pumps
- condenser water pumps
- cooling towers
- BTU / heat meters
- variable frequency drives (VFD)
- electricity meters
Protocol path
Modbus RTU / Modbus TCP / BACnet/IP / M-Bus → BACnet/IP / MQTT / OPC UA
Implementation checklist for the project manager
- Collect register maps and protocol documents from every equipment vendor early; a missing map is the most common delay.
- Write the control sequence (start/stop order, interlocks, set-points, fallback on communication loss) and have it approved before programming.
- Commission in read-only mode first; enable write / control points only after the client approves each one.
- Record CT ratios, meter IDs and multipliers in the point table; wrong multipliers are the usual cause of billing errors.
- M-Bus: check unit loads and cable length per segment; 2-wire M-Bus gateways need a 24 V DC supply.
- Build and simulate the configuration off site (FAT) before installation to shorten time on site.
- Configure NTP so trends, alarms and meter readings carry consistent timestamps.
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
Kiến trúc hệ thống
Field layer: chillers, chilled water pumps, condenser water pumps, cooling towers, BTU / heat meters, variable frequency drives (VFD), electricity meters, connected over Modbus RTU / Modbus TCP / BACnet/IP / M-Bus. 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: the BMS, the energy management system, WEB HMI panels, which receives the data as BACnet/IP / MQTT / OPC UA. Remote access for maintenance runs over VPN rather than open internet ports.
Thành phần hệ thống
- Field devices
- chillers, chilled water pumps, condenser water pumps, cooling towers, BTU / heat meters, variable frequency drives (VFD), electricity meters
- Edge / integration
- MILESGO protocol gateways and edge controllers
- Upper systems
- the BMS, the energy management system, WEB HMI panels (BACnet/IP / MQTT / OPC UA)
- Tools and commissioning
- Web-based configuration, point table import/export (Excel), off-site simulation and on-site diagnostic tools
Năng lực phần mềm và AI
- Consumption baseline and deviation alertsThí điểm
- Load and consumption forecastingTrong lộ trình
- Anomaly detection on trend dataTrong lộ trình
Các bước triển khai
- 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.
Giá trị cho khách hàng
- Consumption visible by area, system and time period
- Reliable trend data for optimisation and fault diagnosis
- Monitoring added without changing existing control programs
- Abnormal conditions seen early, before they become failures
Các giải pháp khác trong Smart Building
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