PLC-Based Controls System Replacement
ZAP developed the instrumentation design basis, updated P&IDs, and produced IFC drawing packages to guide the plant’s transition from a pneumatic control system to a modern PLC-based architecture. The controls design package included control system architecture, control philosophy, instrument index, I/O lists, instrument data sheets, junction box wiring, controls narrative, and cable schedule. Deliverables were issued through IFR, IFB, and IFC phases with client review incorporated at each stage. ZAP also provided engineering support for instrument power distribution and cable tray design throughout the facility.
Automated NGL Truck Loadout System
ZAP redesigned the facility’s single-meter, operator-attended truck loadout configuration into a self-sufficient, automated terminal for propane, butane, and gasoline products, integrating a Terminal Accounting and Terminal Management System to allow loading activities to proceed without continuous operator involvement. ZAP developed bid packages and specifications covering instrumentation, PLC hardware, PLC programming, and truck loadout automation, supporting the transition from manual to automated terminal operations.
