{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6GT2821-4AC32","brand":"Siemens","brandSlug":"siemens","productSlug":"6GT2821-4AC32","canonicalUrl":"https://aoctrl.com/siemens/6GT2821-4AC32","factsUrl":"https://aoctrl.com/api/mcp/products/6GT2821-4AC32","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC RF200 RF240R RFID reader, 6GT2821-4AC32, IO-Link interface, IP67, 13.56 MHz, 65 mm range, 50x50x30 mm, anthracite.","salesMarkdown":"The Siemens 6GT2821-4AC32 is a SIMATIC RF240R RFID reader from the RF200 family, designed for reading and writing to ISO 15693 transponders (MDS Dxxx) via a 13.56 MHz radio interface. It connects to an IO-Link master V1.0 over a standard M12 4-pin connector, with a maximum cable run of 20 m between master and device. The integrated antenna gives a read/write range up to 65 mm, though actual range depends on the transponder type used. The housing is IP67-rated, anthracite PA6.6, measuring 50 x 50 x 30 mm, and mounts via two M5 screws. It draws 0.05 A typical at 24 VDC (20.4 to 28.8 V range). A 3-color LED provides local status indication. The unit is silicon-free and not multitag-capable — it handles one tag at a time. Read and write access times are 40 ms per byte typical. The radio transfer rate is 26.5 kbit/s maximum, and the IO-Link communication runs at 38.4 kbit/s. Shock resistance per EN 60721-3-7 Class 7M2 (500 m/s²), vibration at 200 m/s². The MTBF is listed at 430 years, which reflects the solid-state design with no moving parts. In practice, the limiting factor is the connector and cable assembly in washdown environments, not the electronics. The IP67 rating means the reader body and optics survive hose-down cleaning, making it suitable for food-and-bev or automotive production lines where ISO 15693 tags are already in use. ## Integration notes Mounts with two M5 screws through the 50 x 50 mm face — no DIN rail option, so plan for a bracket or direct panel mount. The M12 connector is a standard 4-pin A-coded IO-Link socket; wire per the master's pinout (typically pin 1 = L+, pin 3 = L-, pin 4 = C/Q). Keep the cable run under 20 m to stay within IO-Link V1.0 spec. The reader is not multitag-capable and handles one transponder at a time. For applications requiring simultaneous reading of multiple tags on a pallet or tray, this is not the right part — look to the RF600 series for that. The 40 ms per-byte access time means a full 8-byte read takes about 320 ms; factor that into your cycle time budget.","metaTitle":"Siemens 6GT2821-4AC32 RF240R IO-Link RFID Reader, NRND","metaDescription":"Siemens SIMATIC RF240R RFID reader, 13.56 MHz, IO-Link, IP67, 65 mm range. NRND lifecycle — sourced to order. MTBF 430 a.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["RFID & Auto-ID"],"specifications":{"MTBF":"430 a","Color":"anthracite","Depth":"50 mm","IECEx":"No","Width":"50 mm","at DC":"20.4 ... 28.8 V","Height":"30 mm","Material":"PA6.6","During Storage":"-25 ... +80 °C","Display Version":"3-color LED","Range / Maximum":"65 mm; Range is dependent on transponder type: observe http://support.automation.siemens.com/WW/view/en/67384964","lifecycle_stage":"mature","During Operation":"-20 ... +70 °C","During Transport":"-25 ... +80 °C","Fastening Method":"2 x M5 screws","Shock Resistance":"EN 60721-3-7 Class 7 M2","at 24 V / typical":"0.05 A","Shock Acceleration":"500 m/s²","at DC / rated value":"24 V","protection class IP":"IP67; IP67","Vibrational Acceleration":"200 m/s²","Suitability For Operation":"ISO 15693 transponder (MDS Dxxx), for connecting to IO-Link Master V1.0","Type Of Electrical Connection":"M12, 4-pin","Product Feature / Silicon-Free":"Yes","Operating Frequency / Rated Value":"13.56 MHz","Product Feature / Multitag-Capable":"No","Protocol / With Radio Transmission":"ISO 15693, ISO 18000-3","For Read Access / Per Byte / Typical":"40 ms","For Write Access / Per Byte / Typical":"40 ms","Standard For Interfaces / For Communication":"IO-Link V1.0","between master and IO-Link device / maximum":"20 m","Transfer Rate / With Radio Transmission / Maximum":"26.5 kbit/s"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/5177ffbe919535f2f306d48ac1707ca0.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=576167&mlfb=6GT2821-4AC32","alternativesUrl":"https://aoctrl.com/api/mcp/products/6GT2821-4AC32/alternatives.json"},"ai":{"faq":[{"question":"What is the read range of this RFID reader?","answer":"The maximum read/write range is 65 mm, but actual range depends on the transponder type used. Refer to Siemens support document 67384964 for transponder-specific range data."},{"question":"What interface does it use?","answer":"It uses IO-Link V1.0 communication over a standard M12 4-pin connector. The maximum cable length between the reader and the IO-Link master is 20 m."},{"question":"What is the operating temperature range?","answer":"Operating temperature is -20 to +70 °C. Storage and transport range is -25 to +80 °C."},{"question":"What is the MTBF?","answer":"The listed MTBF is 430 years."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6GT2821-4AC32","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/6GT2821-4AC32 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}