What it is and what it does
The Siemens 6AG1155-5AA01-7AB0 is a SIPLUS PROFINET IO Device with an integrated 2-port switch. It supports isochronous real-time (IRT) for deterministic motion control and media redundancy (MRP) for ring-topology resiliency.
Key ratings and what they mean for your BOM
Rated at 24 V DC, typical power consumption is 4.5 W. The I²t value of 0.09 A²·s defines the energy-handling capability during inrush (max 9 A peak) — crucial for sizing the upstream fuse or PSU. IRT enables clock-synchronized data exchange down to 250 µs cycle for servo drives.
Mounting and integration
Mounts on a 35 mm DIN rail; dimensions 129 mm deep, 35 mm wide, 147 mm high. Two RJ45 ports with auto-crossing and LLDP for topology detection. Status indicators: RUN (green), ERROR (red), MAINT (yellow).