{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1904-2AB01","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1904-2AB01","canonicalUrl":"https://aoctrl.com/siemens/3RK1904-2AB01","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1904-2AB01","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RK1904-2AB01 AS-Interface addressing and diagnostic unit, IP50, battery-powered, M12 socket connection, 195 x 84 x 35 mm.","salesMarkdown":"The Siemens 3RK1904-2AB01 is a handheld AS-Interface addressing and diagnostic unit for active AS-i modules and intelligent sensors/actuators compliant with AS-Interface specification V2.1. It connects to the target device through an M12 socket with a defined pinout: Pin 1 carries AS-i+, Pin 3 carries AS-i-/GND, and Pins 2, 4, and 5 are reserved for IR addressing. Power comes from four LR6 (NEDA 15) batteries, good for at least 2500 device addressings per set; the unit auto-powers off about one minute after the last operation to conserve battery life. The IP50 rating means the housing is dust-protected but not sealed against water — this is strictly an indoor tool for dry environments like control cabinets or commissioning benches. Operating temperature range of 0 to 55 °C covers most plant-floor conditions; storage range of -20 to +55 °C (without batteries) is fine for the service van between jobs. The 100 mA rated operational current is the unit's own draw during addressing — negligible for the battery budget, but it tells you the M12 connection isn't powering anything else.","metaTitle":"Siemens 3RK1904-2AB01 AS-Interface Addressing Unit, IP50","metaDescription":"Siemens 3RK1904-2AB01 AS-Interface addressing and diagnostic unit. Battery-powered, 2500 addressings per set, IP50, M12 connection. Currently in production. Available to order agai","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"Depth":"35mm","Width":"84mm","title":"3RK1904-2AB01","Device":"IP50","Height":"195mm","Connection":"using M12 socket: Pin1=AS-i+; Pin3=AS-i-/GND; Pin2/4/5=IR-addressing","description":"AS-Interface Addressing and diagnostic unit for active AS-i modules Intelligent sensors and actuators with functionality according to V2.1 with M12 socket Addressing of user modules via 3RK1901-1MA00","Power supply":"is provided by 4 batteries according to IEC LR6 (NEDA 15), which guarantee that the unit can perform at least 2500 device addressings. For a longer battery life the unit is switched off automatically approx. 1 minute after the last operation","During Storage":"-20 ... +55°C","lifecycle_stage":"current","During Operation":"0 ... 55°C","Connection Socket":"IP20","Other Information":"storage temperature without batteries","Design Of The Product":"AS-Interface addressing unit","Conditions of application":"only in indoor rooms","rated operational current Ie":"100mA","environmental conditions Relative humidity":"max. 75 %, condensation not permitted"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2506c84bc50fd54eb200b0e325c9c833.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=22210&mlfb=3RK1904-2AB01"},"ai":{"faq":[{"question":"What is the 3RK1904-2AB01 used for?","answer":"It is an AS-Interface addressing and diagnostic unit used to set addresses on active AS-i modules and intelligent sensors/actuators compliant with AS-Interface V2.1."},{"question":"Does the 3RK1904-2AB01 work with the 6ES7211-1HD30-0XB0 or similar PLCs?","answer":"No — this is a standalone AS-Interface addressing tool, not a PLC module. It does not drop into a panel or replace any SIMATIC S7-1200 CPU."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1904-2AB01","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/3RK1904-2AB01 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}