Siemens 6AV2125-2AE23-0AX0 SIMATIC HMI Connection Box Advanced PROFINET IP65 HMI Accessory

The Siemens 6AV2125-2AE23-0AX0 is a SIMATIC HMI Connection Box Advanced, a wall-mounted interface unit for Mobile Panels offering PROFINET with IRT and MRP media redundancy plus PROFIsafe connectivity through an integrated three-port switch. Both direct-wired and PROFIsafe safety paths support reconnection without interrupting the emergency stop circuit, reaching Performance Level PLe and SIL 3, with IP65 protection.

Technical Specifications

Certifications & Standards

• CE
• cULus
• RCM
• Suitable
• GL
• ABS
• BV
• DNV
• KRS
• LRS

Selection Notes

The Advanced box's PROFIsafe and direct-wired paths both allow reconnection without breaking the emergency stop circuit, unlike the Standard box which requires a physical circuit interruption to reconnect; pick Advanced where continuous safety monitoring across dock and undock cycles is needed without a hard reset. Added IRT and MRP client support let the Advanced box sit in a ring topology with isochronous real-time PROFINET, which the Standard box does not support. Otherwise the two share the same 24V DC supply, IP65 rating, and PLe/SIL 3 safety class, so the choice comes down to reconnection behavior and network topology rather than raw safety performance.

Applications

Suited to lines already running PROFINET IRT/MRP ring topologies where the Mobile Panel connection box needs to participate in media redundancy, and where operators dock and undock frequently enough that circuit-interruption-free reconnection avoids nuisance stops.