3RK1904-2AB01 | Siemens AS-i Addressing and Diagnostic Unit with M12 Socket

Siemens · PLCs & Industrial Controllers

Description  The Siemens 3RK1904-2AB01 is an AS-Interface addressing and diagnostic unit designed for use with active AS-i modules, intelligent sensors, and actuators. It supports functionality according to AS-i V2.1 and includes an M12 socket for reliable connectivity. This unit enables simple module addressing and diagnostics in industrial automation systems.     Technical Specifications  Condition New/Never Used Surplus Brand Siemens Category PLCs and Accessories Part Number 3RK1904-2AB01 Subcategory PLC Accessories Product Type AS-Interface Addressing and Diagnostic Unit AS-i Compatibility Version 2.1 Connection Interface M12 socket Power Supply 4 × IEC LR6 (NEDA 15) batteries Addressing Capacity ≥ 2500 device addressings per battery set Rated Operational Current 100 mA Auto Power-Off After ~1 minute of inactivity Protection Rating IP40 Operating Use Addressing and diagnostics of AS-i user modules Replacement Model 3RK1904-2AB02 Country of Origin Germany Storage Requirements Store without batteries Weight 0.54 kg     Information About 3RK1904-2AB01 The 3RK1904-2AB01 is part of Siemens’ AS-Interface product line, designed to simplify the configuration and maintenance of field devices in distributed automation systems. It operates as an addressing and diagnostic unit compatible with intelligent sensors and actuators that follow AS-i V2.1 standards. The device is powered by four LR6 batteries, offering up to 2500 addressings before replacement is required. It is engineered with an IP40-rated housing and automatic shutoff for extended battery life, making it suitable for routine maintenance and commissioning tasks. Key Features: AS-Interface Support: Designed for addressing and diagnostics of AS-i modules with V2.1 functionality. M12 Socket Connection: Provides secure and standardized connectivity for sensors and actuators. Battery-Powered Operation: Runs on 4 IEC LR6 batteries, supporting up to 2500 device addressings. Auto Power-Off: Switches off automatically one minute after last operation to conserve power. Compact Design: Lightweight build with IP40 protection for ease of use in field environments. Replacement Model Available: Superseded by Siemens 3RK1904-2AB02 for newer installations. Diagnostic Capabilities: Enables error detection and module verification during setup or troubleshooting. The 3RK1904-2AB01 delivers the reliability and precision required for accurate addressing and diagnostic tasks in AS-Interface automation systems.

Brand: Siemens · Category: PLCs & Industrial Controllers

Key features

• AS-Interface Support: Designed for addressing and diagnostics of AS-i modules with V2.1 functionality.
• M12 Socket Connection: Provides secure and standardized connectivity for sensors and actuators.
• Battery-Powered Operation: Runs on 4 IEC LR6 batteries, supporting up to 2500 device addressings.
• Auto Power-Off: Switches off automatically one minute after last operation to conserve power.
• Compact Design: Lightweight build with IP40 protection for ease of use in field environments.
• Replacement Model Available: Superseded by Siemens 3RK1904-2AB02 for newer installations.
• Diagnostic Capabilities: Enables error detection and module verification during setup or troubleshooting.

Specifications

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