Siemens 6AV6446-3BA41-0BY4 SIMATIC MP 370

Name: Siemens 6AV6446-3BA41-0BY4 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-3BA41-0BY4
Price: 2495.00 EUR
Availability: InStock

€ 2.495,00

Condition

Clear

SKU: 6AV6446-3BA41-0BY4 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-3BA41-0BY4 is a Multi Panel (MP 370) belonging to the SIMATIC HMI family, designed for demanding visualization and operator control tasks in industrial automation environments. This panel features a 15-inch TFT display and is part of the SIMATIC MP 370 series, which represents a high-performance class of operator panels capable of running WinCC flexible runtime software. The unit is manufactured by Siemens and combines robust hardware with versatile communication capabilities for use in complex machine and plant visualization applications.

The MP 370 (6AV6446-3BA41-0BY4) is equipped with a 15-inch TFT color display with a resolution of 1024 x 768 pixels (XGA), providing clear and detailed process visualization. The panel supports touch screen operation and includes a range of communication interfaces such as PROFIBUS DP, MPI, and Ethernet (TCP/IP), enabling integration with a wide variety of Siemens and third-party controllers. It runs on a Windows CE operating system and supports WinCC flexible runtime, allowing for sophisticated HMI projects with scripting, alarms, trends, and recipe management. The unit operates on a 24 V DC supply and is rated to IP65 at the front panel, ensuring protection against dust and water ingress in industrial environments.

The SIMATIC MP 370 is widely deployed in machine building, automotive manufacturing, process industries, and plant engineering where large-format, high-resolution visualization is required. Its multi-protocol communication support makes it suitable for integration into existing SIMATIC S7 automation architectures as well as mixed-vendor environments. The panel's robust construction and broad software compatibility make it a reliable choice for central operator stations on complex production lines and process control systems.

Technical Specifications

Display Size	15 inch
Display Resolution	1024 x 768 pixels (XGA)
Display Colors	64,000 colors (TFT)
Touch Technology	Resistive touch screen
Input/Operating Voltage	24 V DC
Power Consumption	Approx. 40 W
Operating System	Windows CE
Communication Interface	PROFIBUS DP, MPI, Ethernet (TCP/IP), RS-422/485
IP/Protection Rating	IP65 (front), IP20 (rear)
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
Relative Humidity	10 % to 90 % (non-condensing)
Mounting	Panel mounting
Certifications	CE, UL, cULus
Series/Product Family	SIMATIC MP 370

Common Error Codes and System Events

Event ID: 10000: Communication error between the HMI panel and the connected PLC or controller. The connection has been interrupted or cannot be established.
Check the communication cable and connector integrity. Verify the MPI/PROFIBUS address settings on both the panel and the PLC. Ensure the PLC is in RUN mode and the network configuration matches the project settings.
Event ID: 10001: Connection to the configured PLC has timed out. The panel cannot reach the controller within the expected time window.
Verify network cabling and termination resistors on PROFIBUS. Check that the PLC address and baud rate configured in WinCC flexible match the actual hardware settings. Restart both the panel and the PLC if necessary.
Event ID: 20000: Project download error. The transfer of the HMI project from the engineering PC to the panel has failed.
Ensure the panel is in Transfer mode before initiating the download. Check the transfer cable or Ethernet connection. Verify that the WinCC flexible version used for the project is compatible with the panel firmware version.
Event ID: 40000: Tag read/write error. The panel is unable to read from or write to a configured PLC tag or variable.
Check that the PLC data block or memory address referenced in the HMI project exists and is accessible. Verify data type consistency between the HMI tag configuration and the PLC variable. Confirm the PLC program is running correctly.
Event ID: 70010: System memory low warning. The available runtime memory on the panel is insufficient for the current project or operation.
Reduce the number of active screens, alarms, or trend buffers in the WinCC flexible project. Check for memory leaks caused by scripts. Consider archiving or clearing alarm and data logs stored on the panel.
Event ID: 110000: Firmware update error. The panel firmware update process has failed or was interrupted.
Restart the panel and attempt the firmware update again using ProSave or WinCC flexible. Ensure the correct firmware version for the MP 370 is used and that the power supply is stable during the update process.
Event ID: 50000: Recipe data error. A recipe transfer or read/write operation has encountered an inconsistency or failure.
Verify the recipe configuration in WinCC flexible, ensuring that all recipe elements correspond to valid PLC tags. Check available storage space on the panel for recipe data files.

Frequently Asked Questions

What communication interfaces are available on the 6AV6446-3BA41-0BY4?

The SIMATIC MP 370 (6AV6446-3BA41-0BY4) supports MPI, PROFIBUS DP, and Ethernet (TCP/IP) communication interfaces, as well as RS-422/485 serial communication, allowing connection to a wide range of Siemens S7 PLCs and third-party controllers.

Which software is used to program and configure this HMI panel?

The panel is configured using Siemens WinCC flexible engineering software. The runtime environment on the panel is WinCC flexible Runtime running on Windows CE.

What is the display size and resolution of this panel?

The 6AV6446-3BA41-0BY4 features a 15-inch TFT color display with a resolution of 1024 x 768 pixels (XGA) and supports up to 64,000 colors.

Is this panel compatible with SIMATIC S7-300 and S7-400 PLCs?

Yes, the SIMATIC MP 370 is fully compatible with SIMATIC S7-300 and S7-400 PLCs via MPI or PROFIBUS DP, and also supports S7 communication over Ethernet when equipped with the appropriate network configuration.

What is the front panel protection rating of this unit?

The front panel of the 6AV6446-3BA41-0BY4 is rated IP65, providing complete protection against dust ingress and protection against low-pressure water jets, making it suitable for installation in industrial control cabinets and machine fronts.

Troubleshooting

Display remains blank after power on

Measure the 24 V DC supply voltage at the power connector. Check that the voltage is within the specified tolerance. Inspect the internal fuse if accessible. Observe whether any LED indicators on the rear of the panel illuminate.

Ensure the 24 V DC supply is stable and within tolerance. If the supply is correct and the display remains blank, the backlight inverter or the display unit itself may be faulty and require replacement. A qualified repair technician should inspect the internal power circuitry.

Panel cannot establish communication with the PLC

Verify the MPI or PROFIBUS address configured on the panel matches the project settings and the PLC configuration. Check the physical cable connections and ensure the correct cable type is used. Confirm that termination resistors are correctly placed on the PROFIBUS network.

Correct any address mismatches in the WinCC flexible project and re-download the project to the panel. Replace faulty cables or connectors. Ensure only the two physical ends of the PROFIBUS segment have termination resistors enabled.

Touch screen does not respond or responds inaccurately

Check whether the touch screen responds at all by observing if any touch input registers. Determine if the issue is a complete failure or a calibration offset. Access the Windows CE control panel to check touch screen calibration settings.

Recalibrate the touch screen through the Windows CE system settings or the SIMATIC HMI panel startup menu. If calibration does not resolve the issue, the touch screen overlay may be damaged or the touch controller hardware may require replacement.

WinCC flexible project fails to transfer to the panel

Confirm the panel is set to Transfer mode before initiating the download from the engineering PC. Check the transfer connection (Ethernet or serial cable). Verify that the WinCC flexible version on the PC is compatible with the panel firmware version.

Switch the panel to Transfer mode via the Start Center menu. Use ProSave to update the panel firmware if a version mismatch is detected. Ensure the Ethernet or serial connection is stable and that any firewall software on the PC is not blocking the transfer.

Panel reboots unexpectedly or freezes during operation

Check the 24 V DC supply for voltage dips or instability, which can cause unexpected resets. Review the alarm and system event logs on the panel for any recorded fault events prior to the reboot. Assess whether the issue occurs on specific screens or operations, which may indicate a software fault.

Stabilize the power supply and ensure adequate current capacity for the panel. If the issue is software-related, review and optimize the WinCC flexible project for excessive script execution or memory usage. Perform a firmware update if the panel firmware is outdated, using the ProSave utility.

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