The Siemens 6GT2002-0LA00 is an RFID communication module that plugs into the S7-1200 rack, giving the controller a dedicated RS422 or RS232 port for one reader. It handles acyclic communication with the RF200/300/1000, MV300/400/500, and MOBY D/U families — no separate interface converter needed. Power comes from the backplane bus at 24 VDC nominal (20 to 30 V range). Four LEDs track the reader connection; a fifth shows device status. The housing is IP20, Ti-grey 24L01, and sized to match the S7-1200 footprint at 30 mm wide.
The RS422 line runs up to 1000 m, which covers long-run antenna placements in warehouses or yard gates. RS232 is available for shorter drops. Programming uses an ID profile and a library of functions — no custom protocol work on the PLC side. MTBF is listed at 196 a, a solid number for a module that sits in a controlled panel. The IECEx marking (Ex nAA IIC T4 Gc) means it can be installed in Zone 2 gas areas without an enclosure purge — a real time-saver on projects that mix RFID tracking with hazardous environments. Shock and vibration ratings follow IEC 61131-2: 300 m/s² shock, 100 m/s² vibration. That matches the S7-1200 family spec, so the module holds up in the same machine-mounted or conveyor-side panels as the CPU.