Siemens 6AV7674-1LA62-0AA0 SIMATIC HMI Extension Unit 22-inch PROFINET IP65 24V DC HMI Extension Unit

The Siemens 6AV7674-1LA62-0AA0 is a 22-inch PROFINET extension unit for SIMATIC HMI panels, adding 12 mountable control-element slots to any fully IP65-enclosed 16:9 HMI or IPC PRO device. It connects over 2 PROFINET interfaces with an integrated switch, supports the media redundancy protocol for ring topologies, and runs on a 24V DC supply drawing 150 mA with no load attached.

Technical Specifications

Certifications & Standards

• CE
• UL
• cULus
• RCM
• KC

Selection Notes

The 2 PROFINET interfaces with integrated switch let this 22-inch unit sit inline in a line or ring topology without an extra external switch, and MRP support keeps the panel network up if one link fails. A SIMATIC RF200 RF1060R access-control reader can be fitted in place of a standard control element on this size. Choose the PROFINET variant over the hardwired extension unit when the cabinet already runs a PROFINET backbone and the 12 control-element slots should report status back on the network instead of through discrete wiring.