The Siemens 6AG1155-6AU01-7CN0 PROFINET BusAdapter brings two ports to the ET 200AL family, carrying IRT with high performance down to 250 µs cycles — jitter holds under 1 µs, so it fits into motion-control isochronous loops without additional latency. The module draws 2.4 W from the 24 V DC rail, with a 50 mm footprint that slides onto the DIN rail alongside other ET 200AL slices.
Key ratings so-what
I2t is listed at 0.25 A²·s — that's the internal fuse energy rating, so upstream protection should coordinate below that threshold to avoid nuisance trips. IRT with high performance supports cycle times from 250 µs to 4 ms in 125 µs frames, plus standard IRT at 250 µs, 500 µs, 1 ms, 2 ms, and 4 ms. That gives flexibility for both high-speed and standard isochronous applications. Supports MRP, LLDP, SNMP, I&M0–I&M3, and Shared Device — so it integrates into managed PROFINET networks with redundancy and diagnostics.