What it is and where it fits
The Siemens 6GT2811-6AB20-0AA0 is an RF600 UHF RFID reader operating in the 865-868 MHz band, with an integrated OPC UA server for direct data exchange with higher-level systems. It reads passive transponders up to 8 m range (extendable per system manual) and supports DCP and LLDP for network discovery and configuration in industrial Ethernet environments.
Mounting and power — panel integration notes
Mounts on 35 mm top-hat rail, S7-300/1200/1500 profile rails, or VESA 100 with four M4 screws — slots into existing Siemens control cabinets without extra bracketry. Power is 24 VDC via an 8-pin M12 connector; typical draw is 0.37 A, max 2 A at 24 V. Four digital inputs and four digital outputs are onboard for local I/O or reader control signals.
What the key specs mean for fit
The 865-868 MHz operating frequency is the ETSI UHF band for Europe — not compatible with 902-928 MHz FCC bands used in North America. The 8 m read range is the maximum under ideal conditions; real-world range depends on antenna selection (up to four external antennas via RP-TNC connectors, cable runs up to 40 m) and tag type. IP30 means it's for indoor cabinet use only — no washdown or outdoor exposure without an enclosure. MTBF of 31 years (calculated per Siemens standards) gives a reliability baseline for maintenance planning — roughly 271,000 hours mean time between failures in a 24/7 line. Shock resistance to 250 m/s² per EN 60068-2-27 and vibration to 30 m/s² per EN 60068-2-6 means it survives typical industrial panel vibration from nearby conveyors or compressors.