Product Overview

The Siemens 6AV6644-0AB01-2AX0​ is a SIMATIC MP 377 15″ Touch Multi Panel — the flagship of Siemens’ legacy Multi Panel family and the largest pure-touch model in the MP 377 series. Built around a 15-inch TFT display at 1024 × 768 (XGA) with 65,536 colors, the 6AV6644-0AB01-2AX0​ targets complex HMI applications where a 9″ or 12″ panel simply cannot fit enough trends, alarm lists, and process graphics on a single screen. Running Windows CE 5.0 on an x86-class industrial processor, this panel is configurable from WinCC flexible 2007 onward and carries 12 MB of onboard user memory — enough for 千-screen projects, deep recipe sets, and script-driven logic that Basic or Comfort entry panels can’t host.What sets the Siemens 6AV6644-0AB01-2AX0​ apart in the Siemens HMI ladder is its interface density. While Basic panels give you one PROFINET port and maybe a USB, the MP 377 15″ Touch integrates 1 × RS422, 1 × RS485 (MPI/PROFIBUS DP at 12 Mbit/s), 2 × Ethernet RJ45 (PROFINET IO, TCP/IP, Sm@rtService, MODBUS, EtherNet/IP), 2 × USB 2.0, plus CF, SD, and MMC card slots for data logging and project backup. That port mix is why the 6AV6644-0AB01-2AX0​ became the de-facto HMI head-end on S7-300/400 process cells, large packaging lines, and SCADA-frontend skids through the late 2000s and 2010s.Critically for spare-pool managers, the Siemens 6AV6644-0AB01-2AX0​ is mechanically compatible with the earlier MP 370 15″ Touch cutout — same panel opening, same gasket footprint — so a failing MP 370 can be swapped for an MP 377 without re-cutting the door or re-certifying the enclosure. The MP 377 series itself is now discontinued (PM490 lifecycle), but NOS and verified-pull units remain the sanctioned path for plants that haven’t migrated their WinCC flexible projects to TIA Portal Comfort panels.

Technical Specifications