PROCESS & OPERATING PHILOSOPHY
Regulatory control, sequencing, alarm management, historian and operator graphics. The operating sequence, recycle paths, start-up/shutdown cases and normal/turndown behavior are defined before equipment finalization.
ELECTRICAL & AUTOMATION
Distributed Control System (DCS)
UNKA ENGINEERING integrates distributed control systems (DCS) for continuous refinery and process-plant operation. Control narratives, regulatory loops, operator displays and interfaces to package and safety systems are developed from the approved process design.
MAIN EQUIPMENT & PACKAGE LIMITS
Controllers, I/O, servers, workstations, networks, cabinets and interfaces. Materials, design margins, maintainability, isolation, access, lifting and spare philosophy are coordinated with the approved operating cases.
CRITICAL DESIGN INPUTS
Plant load/I/O lists, voltage and network philosophy, hazardous-area classification, availability targets, control narratives, package interfaces and cybersecurity requirements.
ENGINEERING DELIVERABLES
Control philosophy, I/O list, narratives, graphics, alarm database, FAT/SAT and training. The package also includes line/equipment lists, relief and utility summaries, layouts or 3D interfaces, vendor-document requirements, inspection plans and commissioning inputs as applicable.
AUTOMATION, SAFETY & HSE
Protection/selectivity, redundancy, fail-safe states, alarm management, segregation, earthing, functional-safety validation, FAT/SAT and controlled software backups.
APPLICATIONS & PERFORMANCE BASIS
Refineries and continuous process plants. Capacity, product quality, consumption and emissions commitments are confirmed only after the representative feed and project Design Basis are approved.
CODES, STANDARDS & QUALITY BASIS
IEC 61131, ISA 18.2/101 and project cybersecurity requirements. The contractual code basis is selected by destination and client specification. ASME/API/TEMA, EN/DIN and GOST/EAC requirements are not mixed without an approved code-equivalency and authority review.
CONTRACTUAL CODE BASIS
IEC 61131, ISA 18.2/101 and project cybersecurity requirements.