What this reader does on the line
The Siemens 6GT2811-6AB20-1AA0 is an RF600 UHF RFID reader that operates in the 902 to 928 MHz band, with a maximum read range of 8 m and extended ranges possible per the RF600 System Manual. Transmit power is adjustable from 3 to 1000 mW, so you can dial it down for dense reader environments or crank it up for long-range pallet reads. It supports DCP, LLDP, OPC UA, TCP/IP, and SNMP v1 for network integration, and carries 4 digital inputs and 4 digital outputs for direct control of external indicators or actuators.
Mounting and power — what fits where
Mounts on a 35 mm top-hat rail, or on a profile rail for S7-300, S7-1200, or S7-1500 controllers, plus VESA 100 with 4 x M4 screws. That means it drops into a standard control panel alongside Siemens PLCs without extra bracketry. Power comes in via an M12, 8-pin connector at 24 V DC rated value; typical draw is 0.37 A, max 2 A at 24 V. The housing is aluminum and Pocan, sized at 258 mm wide by 258 mm tall by 80 mm deep.
Antenna connections and environmental limits
Supports up to 4 external antennas via RP-TNC connectors, with cable runs from 1 m minimum to 40 m maximum. The reader is rated IP30, so it's for indoor panel use — not washdown zones. Operating temperature range is -25 to +55 °C, storage and transport from -40 to +85 °C. Shock resistance per EN 60068-2-27 at 250 m/s², vibration at 30 m/s² per EN 60068-2-6. MTBF is listed at 31 years. Status is indicated by a row of 6 LEDs.