Automation for Electronics Plant Utilities
At Samsung's SEHC complex in Ho Chi Minh City, TDL maintains and upgrades the facility monitoring and control system (FMCS) and the power monitoring system (PMS) under a yearly maintenance contract since 2025: 17 servers, 14 workstations and 37 PLCs on ControlLogix and AVEVA System Platform. Projects there have brought air handling units, outdoor air units, kitchen exhaust fans and a new air compressor into the FMCS SCADA. The projects below are grouped by utility.
By utility
HVAC: AHU, OAC and exhaust fans
On the VD5 rooftop, the Siemens PLCs, HMIs and converters that had stopped working for one AHU, two OAC units and five kitchen exhaust fans replaced with a CompactLogix 5370 controller in the existing enclosure and brought back into the FMCS SCADA; in the Admin Building, AHU and OAC units monitored through BACnet/IP to Modbus TCP gateways and KEPServerEX, with twelve temperature and humidity sensors added on three floors.
Compressed air
A new Atlas Copco 520E air compressor that could only be monitored locally integrated into the FMCS SCADA through a Modbus RTU to Modbus TCP converter and KEPServerEX, with valve, flow meter and sensor signals wired to the PLC and checked against the field devices.
Project references
Power monitoring
The power monitoring system (PMS) maintained and upgraded together with the FMCS under the same yearly contract, on ControlLogix and AVEVA System Platform with Modbus TCP and EtherNet/IP.
Project references
SCADA, historian and reports
FMCS screens, tags and objects on AVEVA System Platform, with historian and automated reports, and equipment connected through KEPServerEX.
Yearly maintenance
PLC stations checked every six months and servers on a six- or twelve-month plan: backups with restore tests, firmware and redundancy checks, power supply, cabinet and wiring checks and a report after each visit; work orders for PLC program changes on HVAC and utility systems, HMI migration and SCADA extension.
Project references
Related services
SCADA & Plant Data Integration
SCADA and HMI on FactoryTalk View SE/ME, FactoryTalk Optix, AVEVA System Platform, AVEVA InTouch HMI (formerly Wonderware InTouch), AVEVA Edge (formerly InduSoft Web Studio), Ignition and N3uron. Thin clients with ThinManager. Historians (FactoryTalk Historian, AVEVA Historian, AVEVA PI System), FactoryTalk Batch, OPC UA, Kepware and MES integration.
Historian & Reporting
Process and equipment history, trends and automated production, energy and facility reports on FactoryTalk Historian, AVEVA Historian and the AVEVA PI System, with data from PLCs and third-party systems over OPC UA, Kepware and Modbus.
Breakdown Support & Lifecycle Services
Line down? TDL troubleshoots on site or remotely, fixes programs and supplies replacement Allen-Bradley parts to get production running again. Also commissioning, preventive maintenance, PLC backup and version control (FactoryTalk AssetCentre), vibration monitoring and training on Rockwell Automation and AVEVA software.
Project references
- 2026 – SEHC VD5 – AHU, OAC and Exhaust Fan Control Retrofit on CompactLogixSiemens to CompactLogix · AHU, OAC and exhaust fans · AVEVA System Platform FMCS
- 2025–2026 – SEHC – New Air Compressor Integrated into FMCS SCADAAir compressor into FMCS · Modbus · AVEVA System Platform · central control room
- 2025–2026 – SEHC Admin Building – AHU and OAC Monitoring SystemAVEVA System Platform · BACnet/IP to Modbus TCP · historian and reporting
- 2025–ongoing – SEHC – FMCS and PMS Maintenance and IntegrationYearly maintenance · ControlLogix firmware and redundancy · AVEVA System Platform · 37 PLCs
Frequently Asked Questions
Which utility systems does TDL work on at SEHC?
The FMCS and the power monitoring system: air handling units, outdoor air units and kitchen exhaust fans, a new air compressor, and the servers, workstations and PLCs of both systems under yearly maintenance.
Can equipment that is only monitored locally be added to the FMCS SCADA?
Yes. A new air compressor at SEHC was connected through a Modbus RTU to Modbus TCP converter and KEPServerEX, so the central control room sees its operating data, alarms and history.
What does yearly maintenance of an FMCS cover?
At SEHC: PLC stations checked every six months and servers on a six- or twelve-month plan, backups with restore tests, firmware and redundancy checks, power supply, cabinet and wiring checks with a report after each visit, plus work orders.
Planning HVAC, compressed air or power monitoring work at an electronics plant?
Speak directly with our engineers. Send your RFQ, scope of work or drawings: the engineers who program and commission the systems read them and reply, from the first review of the existing system to the proposed solution.
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