FUNCTION & CONTROL METHOD
Conventional marshalling, electronic marshalling or remote I/O is selected from cable distances, segregation, redundancy, hazardous area and maintenance philosophy.
ELECTRICAL, INSTRUMENTATION & AUTOMATION
Remote I/O & Marshalling Systems
Collects field signals near process areas and connects them to DCS, PLC or SIS with controlled segregation and diagnostics.
MAIN HARDWARE & SYSTEM BOUNDARY
Remote I/O panels, marshalling cabinets, intrinsic-safety barriers/isolators, fieldbus interfaces, fiber/copper network, UPS feeds and environmental control.
CRITICAL DESIGN INPUTS
Approved P&IDs and control philosophy, process ranges and alarm/trip limits, hazardous-area classification, environmental conditions, I/O and load lists, availability/redundancy target, package interfaces, communication protocols, cybersecurity and client standards.
ENGINEERING DELIVERABLES
System architecture, instrument/equipment index, datasheets, I/O list, hook-ups, loop and wiring diagrams, cabinet/panel drawings, cable schedule, network drawings, control narratives, cause-and-effect, logic diagrams, graphics, test procedures and as-built backups.
FUNCTIONAL SAFETY, RELIABILITY & CYBERSECURITY
SIS and BPCS segregation, redundant communications/power, cabinet heat load, EMC, grounding, surge protection and network failure response are verified.
TESTING, COMMISSIONING & APPLICATIONS
Distributed refinery units, tank farms, utilities, modular skids and large process plants. Cabinet FAT, point-to-point and channel testing are completed.
CODES, STANDARDS & QUALITY BASIS
IEC 61131/61511/60079, ISA, IEC 62443 and selected EN/DIN/GOST panel standards.
CONTRACTUAL CODE BASIS
IEC 61131/61511/60079, ISA, IEC 62443 and selected EN/DIN/GOST panel standards.