Machine, production target, existing programs, and constraints. Site visit when the drawings are incomplete.
I/O list, network, panel concept, and a written scope so both sides know what “done” means.
Schematics, program structure, HMI map, and panel fabrication as required.
I/O checkout, dry-cycle, production support, backups, and as-builts.
Changes, troubleshooting, and spares strategy after the line is running.