Is the PLC brand more important than the control logic in a packaging machine?

• Control logic governs cycle time, film tension and heat-seal consistency, affecting yield more than brand.
• Brand affects spare parts, programming software and engineer availability, shortening mean time to repair.
• Assess whether logic supports recipe management, servo synchronization and safety interlock before brand.
• Require supplier FAT report to verify logic stability at rated speed.
• If logic is closed and source code unavailable, changing brand won't help; prioritize program portability.