M&E · Controls · automation
Controls and automation: building DDC and factory PLC
A field strength — peer with HVAC, ELV and BMS, not a leftover after power. Buildings: DDC, BMS, AHU/chiller sequences, kWh points. Plants: PLC, MCC, drives, HMI/SCADA, 4–20 mA and dry contacts. Same team for boards, power and commissioning.
- I/O list first (DI/DO/AI/AO, 24 V, addresses) — price from the list, not floor area.
- DDC / PLC / MCC panels: layout, earth, VFD filters and bypass, access for maintenance.
- Fieldbus on a technical VLAN: BACnet, Modbus, industrial Ethernet. iBMS.
- FAT when specified; SAT: local run, then automatic sequence. Occupied changeover cluster by cluster.
Longer field notes are in Vietnamese — open VI, then Knowledge.