The ABB 3HAC031977-1 is a core controller unit for the ABB IRC5 Compact robotics platb,designed for high-perbance motion control in compact automation cells.It delivers precise trajectory planning,multi-axis coordination,and seamless integration with factory networks via Ethernet,Profinet,or DeviceNet.Engineered for reliability and flexibility,it supports Safe Move functionality and works in tandem with dedicated drive modules to b a complete control system.Ideal for applications in assembly,handling,and welding,this unit combines ABB’s proven IRC5 architecture with a modular design that reduces footprint and maintenance cost.Built to operate continuously in demanding industrial environments,it ensures long-term uptime and precision for robotic cells worldwide.