Siemens 6AV6446-7AA40-3BY3 SIMATIC MP 370

Name: Siemens 6AV6446-7AA40-3BY3 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-7AA40-3BY3
Price: 1995.00 EUR
Availability: InStock

€ 1.995,00

Condition

Clear

SKU: 6AV6446-7AA40-3BY3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-7AA40-3BY3 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 provides high-performance human-machine interface capabilities for complex process visualization. It is manufactured by Siemens and represents a robust solution for mid-to-high-end HMI applications.

The MP 370 panel is equipped with a 15-inch TFT color display with a resolution of 1024 x 768 pixels (XGA), supporting up to 64,000 colors for detailed process graphics. It supports both touch screen and key operation, providing flexible interaction options for operators. The unit communicates via MPI, PROFIBUS DP, and Ethernet interfaces, enabling integration into a wide range of Siemens and third-party control architectures. It runs on the Windows CE operating system and supports WinCC flexible runtime software for configuration and visualization. The panel includes a CompactFlash card slot for additional memory expansion and data logging.

The SIMATIC MP 370 is widely used in industries such as automotive manufacturing, chemical processing, food and beverage production, and water treatment facilities. Its large display size and multi-protocol communication support make it suitable for complex machine control panels and SCADA-level visualization at the machine level. The combination of touch and key operation allows deployment in environments where operators may be wearing gloves or require tactile feedback.

Technical Specifications

Display Size	15 inch
Display Resolution	1024 x 768 pixels (XGA)
Display Colors	64,000 colors
Display Type	TFT color LCD
Touch Technology	Resistive touch screen with function keys
Operating System	Windows CE
Input/Operating Voltage	24 V DC
Power Consumption	Approx. 40 W
Communication Interface	MPI, PROFIBUS DP, Ethernet (RJ45), RS-422/485
Memory	12 MB user memory; CompactFlash card slot
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
Relative Humidity	10% to 90% (non-condensing)
IP/Protection Rating	IP65 (front panel)
Certifications	CE, UL, cULus
Series/Product Family	SIMATIC MP 370

Common Error Codes & System Events

Event ID: 1000000: System startup event. The HMI device has completed its boot sequence and runtime has started.
No action required. Informational event confirming normal startup.
Event ID: 1000002: Communication error with the configured PLC controller. The HMI cannot establish or maintain a connection.
Check MPI/PROFIBUS/Ethernet cabling and termination resistors. Verify PLC address settings match HMI project configuration. Confirm PLC is powered and running.
Event ID: 1000003: Tag read error. The HMI is unable to read a configured tag from the PLC.
Verify the tag address exists in the PLC program. Check communication link status. Confirm the data block or memory area is accessible.
Event ID: 1000004: Tag write error. A write operation to a PLC tag has failed.
Check that the target PLC address is not write-protected. Verify communication integrity and that the PLC is in RUN mode.
Event ID: 1000010: Project loading error. The runtime project could not be loaded from memory.
Re-transfer the WinCC flexible project to the HMI panel. Check the CompactFlash card for errors or replace it if corrupted.
Event ID: 1000070: License missing or invalid. A required runtime license for WinCC flexible is not found on the device.
Transfer a valid WinCC flexible license to the HMI device using the Automation License Manager. Check the CompactFlash card for the license file.
Event ID: 1000201: Printer error. A print job could not be completed.
Check printer connection and configuration in the HMI project settings. Verify the printer driver is compatible with Windows CE.
Event ID: 1000090: Data log full. The configured data logging buffer or file has reached its maximum capacity.
Archive or delete existing data log files. Increase the allocated log size in the WinCC flexible project configuration or use a larger CompactFlash card.

Frequently Asked Questions

What communication interfaces does the SIMATIC MP 370 (6AV6446-7AA40-3BY3) support?

The MP 370 supports MPI, PROFIBUS DP, Ethernet (RJ45), and RS-422/485 serial interfaces, allowing connection to a wide range of Siemens PLCs including S7-300, S7-400, and third-party controllers.

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

The MP 370 is configured using Siemens WinCC flexible software. The compiled project is then transferred to the panel via Ethernet, MPI, or a CompactFlash card.

What is the supply voltage for the 6AV6446-7AA40-3BY3?

The panel operates on 24 V DC. Ensure the power supply is adequately rated, as the panel consumes approximately 40 W.

Can the CompactFlash card slot be used for project storage and data logging?

Yes, the CompactFlash card slot supports both project storage and runtime data logging, including alarm logs and trend data. The card can also be used to transfer projects to the panel.

What is the front panel protection rating of the MP 370?

The front panel of the MP 370 is rated IP65, making it suitable for installation in enclosures where dust and water spray protection is required.

Troubleshooting

Display remains blank after power on

Measure 24 V DC at the power supply connector on the rear of the panel. Check for blown internal fuse. Observe whether the backlight is off or the screen is displaying no image at all.

Verify and restore correct 24 V DC supply. If the backlight is faulty, the backlight inverter or display assembly may need replacement. If no boot activity is detected, the main board may require repair or replacement.

HMI panel fails to communicate with the S7 PLC via MPI or PROFIBUS

Check the MPI/PROFIBUS cable connections and verify bus termination at both ends of the network. Confirm that the HMI station address does not conflict with other devices on the bus. Review the communication settings in the WinCC flexible project.

Correct any address conflicts, replace damaged cables, and ensure proper bus termination resistors are installed. Re-transfer the project if communication parameters have changed.

Touch screen does not respond or registers incorrect touch positions

Access the Windows CE control panel and run the touch screen calibration utility. Check for physical damage or contamination on the touch surface.

Perform a touch screen recalibration via the Windows CE Start menu or the Siemens loader menu. If calibration does not resolve the issue, the touch panel overlay may need to be replaced.

WinCC flexible runtime project fails to load or panel boots to loader screen only

Check whether a valid project is stored on the internal memory or CompactFlash card. Attempt to re-transfer the project via Ethernet or MPI from the engineering PC.

Re-transfer the WinCC flexible runtime project to the panel. If the CompactFlash card is used for project storage, test or replace the card. Verify that the correct runtime version is installed on the device.

Panel display shows distorted graphics or incorrect colors

Check the display cable connection between the main board and the TFT display assembly. Test with a known-good project to rule out software configuration issues.

Reseat or replace the internal display cable. If the TFT panel itself is damaged, it will require replacement with a compatible 15-inch XGA display assembly for the MP 370.

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