Siemens SIMATIC HMI MP 370 Modules – 6AV6545-0DB10-0AX0

Technical Dossier

Product Details And Specifications

Siemens SIMATIC HMI MP 370 Series Technical Notes

The Siemens SIMATIC HMI MP 370 (Multi Panel 370) is a high-performance operator panel platform deployed across global heavy industry sectors including petrochemical refineries, nuclear power facilities, offshore platforms, and continuous-process chemical plants. Introduced as part of Siemens' SIMATIC HMI product line, the MP 370 established itself as a standard-bearer for large-format, touch-enabled HMI interfaces in distributed control system (DCS) and SCADA environments. Its 12.1-inch and 15-inch TFT display variants, combined with robust MPI/PROFIBUS DP and Ethernet connectivity, made it a preferred choice for OEMs and system integrators requiring reliable visualization at the field level. The MP 370 family operates under WinCC flexible runtime and is compatible with STEP 7 engineering environments, ensuring deep integration with Siemens S7-300 and S7-400 PLC architectures. Installed base counts in the tens of thousands across Europe, Asia-Pacific, and the Americas confirm its long-term relevance as a spare parts target for plant maintenance teams.

The Evolution of MP 370 Architecture

The MP 370 was launched in the early 2000s as a successor to the OP 37 and MP 370 predecessor panels, consolidating touch and key-operated interfaces into a unified hardware platform. Early revisions shipped with Windows CE 3.0 and supported MPI/PROFIBUS DP as primary fieldbus protocols. Subsequent hardware revisions introduced Ethernet (IE) connectivity, enabling integration with PROFINET-based control architectures without requiring gateway hardware. The panel's ARM-based processor architecture and compact flash storage design remained consistent across generations, simplifying spare parts interchangeability within the same display-size family. As Siemens transitioned its HMI portfolio toward the SIMATIC HMI Comfort Panel series (e.g., TP1200 Comfort, MP1200 Comfort) from 2012 onward, the MP 370 entered its end-of-life phase. Siemens officially discontinued active production, though the installed base in legacy DCS environments ensures continued demand for replacement units and refurbished modules. Migration paths to KTP1200 Basic or TP1500 Comfort panels are documented in Siemens Migration Guides but require WinCC flexible to TIA Portal project conversion.

MP 370 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly sourced models within the SIMATIC HMI MP 370 product family, classified by display type and interface configuration:

Touch Panel Variants (12.1-inch TFT)

• 6AV6545-0DB10-0AX0: MP 370-12 Touch, 12.1" TFT, MPI/PROFIBUS DP, 256 colors, Windows CE
• 6AV6545-0DA10-0AX0: MP 370-12 Touch, 12.1" TFT, MPI/PROFIBUS DP, STN display variant
• 6AV6545-0BA15-2AX0: MP 370-12 Touch, 12.1" TFT, MPI/PROFIBUS DP + Ethernet, 256 colors
• 6AV6545-0BC15-2AX0: MP 370-12 Touch, 12.1" TFT, Ethernet IE, enhanced memory configuration

Touch Panel Variants (15-inch TFT)

• 6AV6545-0CA10-0AX0: MP 370-15 Touch, 15" TFT, MPI/PROFIBUS DP, 256 colors
• 6AV6545-0CC10-0AX0: MP 370-15 Touch, 15" TFT, MPI/PROFIBUS DP + Ethernet IE
• 6AV6545-0CB15-2AX0: MP 370-15 Touch, 15" TFT, Ethernet IE, 65536 colors
• 6AV6545-0CD15-2AX0: MP 370-15 Touch, 15" TFT, dual NIC, extended I/O interface

Key-Operated Panel Variants

• 6AV6545-0AA15-2AX0: MP 370-12 Key, 12.1" TFT, MPI/PROFIBUS DP, function key array
• 6AV6545-0AC15-2AX0: MP 370-12 Key, 12.1" TFT, Ethernet IE, 32 configurable function keys
• 6AV6545-0EA10-0AX0: MP 370-15 Key, 15" TFT, MPI/PROFIBUS DP, 256 colors
• 6AV6545-0EC10-0AX0: MP 370-15 Key, 15" TFT, MPI/PROFIBUS DP + Ethernet IE

Accessories & Replacement Components

• 6AV6671-5AE11-0AX0: WinCC flexible 2008 Runtime license, 128 power tags, MP 370 compatible
• 6AV6671-1CB00-0AX0: WinCC flexible Compact engineering software, single license
• 6AV6671-5DE00-0AX0: WinCC flexible 2008 Advanced Runtime, 2048 power tags
• 6AV6671-8XE11-4AX0: WinCC flexible 2008 SP3 upgrade package for MP 370 migration projects
• 6AV6545-0AG10-0AX0: MP 370 front panel replacement unit, key variant, 12.1"

Quality Control for the MP 370 Range

Each MP 370 unit processed by DriveKNMS undergoes a structured multi-stage inspection protocol designed for the specific hardware architecture of this panel family. Display verification includes full-screen pixel mapping to identify dead zones, backlight degradation, and touch calibration drift — common failure modes in aged TFT assemblies. The Windows CE operating system partition is verified for integrity and re-imaged where necessary using validated firmware images. MPI/PROFIBUS DP and Ethernet interface ports are tested under live protocol simulation using Siemens S7 communication stacks to confirm data exchange integrity. Compact flash storage is benchmarked for read/write speed and sector health. All units are powered through a controlled burn-in cycle of minimum 48 hours before dispatch. Units failing any stage are quarantined and documented; no partial-pass units are released to customers.