Available. The Siemens 6ES7155-6AU01-0CN0 is a high-performance PROFINET 2-port interface module designed for the SIMATIC ET 200SP system. This module features a single slot for a BusAdapter and supports up to 64 I/O modules and 16 ET 200AL modules, facilitating extensive system expansion. It offers S2 redundancy and multi-hot swapping capabilities, ensuring continuous operation and minimal downtime. The module operates in isochronous mode with a cycle time of 0.25 ms, making it suitable for applications requiring precise timing and synchronization. Additionally, it includes a server module and offers optional PROFINET strain relief, enhancing system stability and reliability. This module is ideal for complex automation tasks where high availability and performance are critical.