Siemens 6AV6446-7BA40-3BY4 SIMATIC MP 377

Name: Siemens 6AV6446-7BA40-3BY4 SIMATIC MP 377
Brand: Siemens
SKU: 6AV6446-7BA40-3BY4
Price: 2495.00 EUR
Availability: InStock

€ 2.495,00

Condition

Clear

SKU: 6AV6446-7BA40-3BY4 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-7BA40-3BY4 is a Multi Panel belonging to the SIMATIC MP 377 series, part of Siemens' SIMATIC HMI product line. This panel is a high-performance operator interface device designed for demanding industrial visualization and control tasks. It features a 15-inch widescreen TFT display and runs on the Windows CE operating system, providing a robust platform for complex HMI applications.

The MP 377 15" Touch panel is equipped with a resistive touchscreen and delivers a display resolution of 1024 x 768 pixels with 64,000 colors. It supports multiple communication interfaces including PROFIBUS DP, PROFINET IO (via Ethernet), MPI, and USB ports, enabling seamless integration into a wide range of automation architectures. The panel includes 12 MB user memory for project data and is powered by a 24 V DC supply. It is engineered for front-panel mounting with an IP65 protection rating on the front face, ensuring resistance to dust and water ingress in industrial environments.

The SIMATIC MP 377 is widely deployed in manufacturing, process automation, and machine building industries where advanced visualization, recipe management, and data logging are required. Its compatibility with Siemens SIMATIC S7 PLCs and WinCC flexible engineering software makes it a standard choice for system integrators working within Siemens automation ecosystems. Typical applications include control panels for packaging machinery, conveyor systems, chemical processing plants, and energy management systems.

Technical Specifications

Display Size	15 inch
Display Resolution	1024 x 768 pixels (XGA)
Display Colors	64,000 colors
Display Type	TFT LCD
Touch Technology	Resistive touchscreen
Input/Operating Voltage	24 V DC (19.2 V – 28.8 V)
Power Consumption	Approx. 40 W
User Memory	12 MB
Operating System	Windows CE 5.0
Communication Interface	PROFIBUS DP, MPI, PROFINET IO (Ethernet RJ45), 2x USB
IP Protection Rating (Front)	IP65
IP Protection Rating (Rear)	IP20
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
Relative Humidity	10% to 90% (non-condensing)
Mounting	Panel mounting (portrait or landscape)
Certifications	CE, UL, cULus
Series/Product Family	SIMATIC MP 377

Common Error Codes & System Events

Event ID: 10000: Configuration error detected during startup; the project file may be corrupt or incompatible with the panel firmware version.
Re-transfer the project using WinCC flexible. Ensure the firmware version on the panel matches the version used during project compilation.
Event ID: 10001: Communication connection to the PLC has been lost or could not be established.
Check PROFIBUS/MPI/PROFINET cabling and termination resistors. Verify PLC address settings match the HMI project configuration.
Event ID: 20000: System memory low; available RAM is insufficient to run the current project.
Reduce the complexity of the project (e.g., reduce number of open screens or logged tags). Consider archiving data to free memory.
Event ID: 40000: Tag read/write error; the HMI cannot access a configured PLC tag.
Verify the PLC program contains the configured tag at the correct address. Check communication status and PLC operating mode.
Event ID: 50000: Recipe data error; a recipe record could not be read from or written to storage.
Check available storage space on the panel. Re-transfer recipe data or reformat the storage medium if corrupted.
Event ID: 70000: Alarm logging error; the alarm archive could not be written.
Check available flash memory. Clear old alarm archives or redirect logging to an external storage device via USB.
Event ID: 110000: Firmware update failed or firmware version mismatch detected.
Perform a fresh firmware update using the ProSave tool. Ensure the correct firmware package for the MP 377 15" is used.

Frequently Asked Questions

What engineering software is required to program the SIMATIC MP 377?

The MP 377 is programmed using Siemens WinCC flexible 2008 or later. Projects are transferred to the panel via Ethernet, USB, or MPI/PROFIBUS connection.

Which PLC families are compatible with the SIMATIC MP 377?

The MP 377 is compatible with Siemens SIMATIC S7-200, S7-300, S7-400, and S7-1200 PLCs, as well as third-party controllers via OPC or custom drivers supported in WinCC flexible.

What is the front protection rating of the 6AV6446-7BA40-3BY4?

The front face of the panel carries an IP65 protection rating, making it suitable for installation in environments exposed to dust and water splashing.

Can the MP 377 communicate over PROFINET?

Yes, the MP 377 includes an integrated PROFINET IO interface via an RJ45 Ethernet port, supporting communication with PROFINET-capable PLCs and network infrastructure.

What operating system does the SIMATIC MP 377 run?

The panel runs Microsoft Windows CE 5.0, which provides the runtime environment for the WinCC flexible Runtime HMI application.

Troubleshooting

Display remains blank after power is applied

Measure the 24 V DC supply voltage at the power connector on the rear of the panel. Check that voltage is within the 19.2 V to 28.8 V range. Inspect the internal fuse if accessible.

Correct the supply voltage if out of range. If voltage is correct and display remains blank, the backlight inverter or the panel itself may require repair or replacement.

Touchscreen does not respond or responds inaccurately

Determine whether the issue is a calibration problem or a hardware fault. Attempt to access the touch calibration routine via the Control Panel in Windows CE during startup.

Recalibrate the touchscreen using the Windows CE Control Panel touch calibration tool. If calibration does not resolve the issue, the resistive touch overlay may be damaged and require replacement.

HMI cannot establish communication with the PLC

Check the physical connection cable (PROFIBUS, MPI, or Ethernet). Verify the bus address configured in the HMI project matches the actual PLC address. Check for correct termination on PROFIBUS networks.

Replace or reseat the communication cable. Correct address settings in the WinCC flexible project and re-transfer. For PROFIBUS, ensure only the two end nodes have termination resistors enabled.

Panel repeatedly restarts or crashes during operation

Check for overheating by measuring ambient temperature around the panel. Review the Windows CE event log for recurring error event IDs. Verify the project was compiled without errors in WinCC flexible.

Ensure ambient temperature does not exceed 50 °C and that ventilation around the panel is adequate. Re-transfer a freshly compiled project. If instability persists, perform a firmware reset using ProSave and re-transfer the project.

Project transfer fails via Ethernet

Verify the IP address of the panel (accessible via the Windows CE Control Panel) and ensure it is on the same subnet as the engineering PC. Check firewall settings on the PC.

Set a compatible static IP address on the panel and engineering PC. Disable any firewall or antivirus software temporarily during transfer. Use the ProSave tool as an alternative transfer method if WinCC flexible transfer continues to fail.

Condition	Repair, Used, Refurbished, New in box (sealed)