Siemens 6AV6446-3BA41-1BY4 MP 370

€ 2.495,00

SKU: 6AV6446-3BA41-1BY4 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-3BA41-1BY4 is a Multi Panel (MP 370) belonging to the SIMATIC HMI Multi Panel series, designed for demanding visualization and operator control tasks in industrial automation environments. This panel features a 15-inch TFT display and runs on the Windows CE operating system, making it suitable for complex HMI applications requiring high graphical performance. It is configured and programmed using Siemens WinCC flexible engineering software.

The MP 370 (6AV6446-3BA41-1BY4) is equipped with a touch-screen interface and supports a wide range of communication interfaces including MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling seamless integration with SIMATIC S7 PLCs and other automation systems. The panel features 12 MB of user memory for project data, onboard flash memory, and supports external storage via CompactFlash cards. It operates on a 24 V DC supply and is rated to IP65 at the front panel, providing protection against dust and water ingress in industrial environments.

The MP 370 is widely used in machine building, process automation, and plant engineering across industries such as automotive manufacturing, food and beverage processing, chemical plants, and packaging machinery. Its large display area and robust communication capabilities make it well suited for applications requiring detailed process visualization, recipe management, alarm logging, and trend displays. The panel's compatibility with the SIMATIC controller family and its support for multiple fieldbus protocols make it a versatile choice for both standalone machines and networked plant installations.

Technical Specifications

Display Size	15 inch
Display Type	TFT color LCD
Display Resolution	1024 x 768 pixels (XGA)
Touch Technology	Resistive touch screen
Operating Voltage	24 V DC
Power Consumption	Approx. 35 W
User Memory	12 MB
Operating System	Windows CE
Communication Interface	MPI, PROFIBUS DP, Ethernet (TCP/IP), RS-422/485
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
Certifications	CE, UL, cULus

Common Error Codes & System Events

Event ID: 10000: Communication error between the HMI panel and the connected PLC. The panel cannot establish or maintain a connection to the configured controller.
Check MPI/PROFIBUS or Ethernet cable connections and termination resistors. Verify the PLC address and communication parameters in the WinCC flexible project match the hardware configuration.
Event ID: 10001: Connection to the PLC was interrupted during runtime operation.
Inspect physical cabling for damage or loose connectors. Verify PLC is powered and running. Check for address conflicts on the network.
Event ID: 20000: Project download error. The project could not be transferred to the panel successfully.
Ensure the correct transfer cable or Ethernet connection is used. Verify the panel is in transfer mode and that the WinCC flexible version is compatible with the panel firmware.
Event ID: 40000: System memory low. Available runtime memory on the panel is insufficient to run the current project.
Reduce the project size by optimizing graphics, reducing the number of screens, or clearing archived data. Consider using a CompactFlash card for extended storage.
Event ID: 50000: Tag read/write error. A configured tag could not be read from or written to the PLC.
Verify the tag address in the WinCC flexible project matches the actual PLC data block or memory address. Check PLC program for address changes.
Event ID: 60000: Firmware update error. The firmware update process on the panel was interrupted or failed.
Restart the panel and retry the firmware update using the correct firmware version for the MP 370. Use a verified CompactFlash card or direct Ethernet transfer.
Event ID: 70000: Screen saver or backlight timeout has activated, causing the display to go dark.
Touch the screen or press a function key to reactivate the display. Adjust the screen saver timeout settings in the panel's Control Panel if required.

Frequently Asked Questions

Which engineering software is used to configure the MP 370 (6AV6446-3BA41-1BY4)?

The MP 370 is configured and programmed using Siemens WinCC flexible. The correct version must be used to match the panel firmware version installed on the device.

What communication interfaces are available on this panel?

The 6AV6446-3BA41-1BY4 supports MPI, PROFIBUS DP, Ethernet (TCP/IP), and RS-422/485 serial interfaces, allowing connection to SIMATIC S7 PLCs and third-party controllers.

Is the MP 370 compatible with SIMATIC S7-300 and S7-400 PLCs?

Yes, the MP 370 can communicate directly with SIMATIC S7-300 and S7-400 PLCs via MPI or PROFIBUS DP, and also supports Ethernet-based communication with S7 controllers equipped with appropriate communication modules.

What external storage options does the MP 370 support?

The MP 370 supports CompactFlash cards for extended project storage, data logging, recipe storage, and firmware updates.

What is the front panel protection rating of the 6AV6446-3BA41-1BY4?

The front panel of the MP 370 is rated IP65, providing full protection against dust ingress and protection against low-pressure water jets, making it suitable for industrial washdown environments.

Troubleshooting

Display remains blank after power is applied

Measure the 24 V DC supply voltage at the panel's power connector. Check that the supply is within the specified tolerance. Inspect the internal fuse if accessible.

Ensure the 24 V DC supply is stable and correctly wired. If the supply is confirmed good and the display remains blank, the backlight inverter or the display unit itself may require replacement.

Panel does not communicate with the PLC

Verify the physical connection on the MPI, PROFIBUS, or Ethernet port. Check the cable type and termination. Confirm the PLC address and baud rate settings match the WinCC flexible project configuration.

Replace or reseat the communication cable. Correct any address or baud rate mismatches in the project settings. Ensure PROFIBUS termination resistors are correctly placed at both ends of the bus.

Touchscreen does not respond accurately or is misaligned

The touchscreen calibration may have drifted. Access the panel's Control Panel via the Start menu in Windows CE to check calibration settings.

Perform a touchscreen recalibration using the calibration utility in the Windows CE Control Panel. If the touchscreen remains unresponsive after calibration, the touch overlay may need to be replaced.

Project cannot be downloaded to the panel

Confirm the panel is set to transfer mode. Check the communication interface selected in WinCC flexible matches the physical connection being used. Verify the WinCC flexible version is compatible with the installed panel firmware.

Switch the panel to transfer mode via the Start Center. Update the panel firmware if there is a version mismatch. Use a direct Ethernet or MPI connection and ensure no firewall is blocking the transfer on the engineering PC.

Panel displays repeated alarm messages or freezes during runtime

Check available runtime memory on the panel. Large projects with many archived alarms or trend data can exhaust available memory. Review the project for unoptimized graphics or excessive data logging configurations.

Clear alarm and trend archives stored on the panel. Optimize the project by reducing screen complexity and limiting data logging intervals. Use a CompactFlash card to offload archive data storage.

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