Siemens 6AV6446-1BA40-1BA3 SIMATIC MP 370

Name: Siemens 6AV6446-1BA40-1BA3 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-1BA40-1BA3
Price: 2995.00 EUR
Availability: InStock

€ 2.995,00

Condition

Clear

SKU: 6AV6446-1BA40-1BA3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-1BA40-1BA3 is a Multi Panel (MP 370) belonging to the SIMATIC HMI Multi Panel series by Siemens. It is a high-performance operator panel designed for demanding visualization and control tasks in industrial automation environments. The MP 370 series provides a robust platform for process visualization, machine control, and data management at the operator level.

The 6AV6446-1BA40-1BA3 features a 12-inch TFT color display with a resolution of 800 x 600 pixels (SVGA) and supports 256 colors. It is equipped with a resistive touch screen as well as function keys for flexible operator input. The panel runs on the Windows CE operating system and supports SIMATIC WinCC flexible as its configuration software. Communication interfaces include MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling integration into a wide range of Siemens and third-party control architectures. The unit operates on a 24 V DC supply and offers onerous memory options for project data and recipes.

The SIMATIC MP 370 is widely deployed in machine building, automotive manufacturing, food and beverage processing, and chemical plant operations. Its combination of touch and key operation, robust industrial housing, and broad communication capability make it suitable for complex HMI applications requiring reliable long-term operation. The panel is particularly favored in applications where both visualization and direct operator interaction with SIMATIC S7 PLCs are required.

Technical Specifications

Display Size	12 inch
Display Resolution	800 x 600 pixels (SVGA)
Display Type	TFT color
Display Colors	256 colors
Touch Technology	Resistive touchscreen
Input/Operating Voltage	24 V DC
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
Relative Humidity	10% to 90% (non-condensing)
Communication Interface	MPI, PROFIBUS DP, Ethernet (TCP/IP)
Operating System	Windows CE
Configuration Software	SIMATIC WinCC flexible
IP/Protection Rating	IP65 (front panel)
Mounting	Panel mounting
Certifications	CE, UL, cULus

Common Error Codes & System Events

Event ID: 1000: Configuration error detected during project load. The project file may be corrupted or incompatible with the panel firmware version.
Reload the project using WinCC flexible. Verify that the firmware version on the panel matches the project configuration version.
Event ID: 10000: Communication connection to the PLC has been lost or cannot be established.
Check MPI/PROFIBUS/Ethernet cabling and connector integrity. Verify PLC address settings and communication parameters in the project configuration.
Event ID: 10001: Timeout on communication link to the configured PLC or controller.
Check network cable and bus termination resistors. Confirm PLC is powered and running. Verify baud rate and station address settings.
Event ID: 20000: Tag read error — the panel cannot read the value of a configured PLC tag.
Verify the tag address exists in the PLC program. Check that the PLC is in RUN mode and the data block or memory area is accessible.
Event ID: 40000: Recipe data error — recipe record cannot be read from or written to the configured storage location.
Check available memory on the panel or external storage device. Verify recipe configuration in WinCC flexible and ensure the target storage path is valid.
Event ID: 50000: System memory low — available RAM or flash memory on the panel is critically low.
Delete unused project files, log files, and recipe data from the panel memory. Consider transferring archived data to an external storage device.
Event ID: 70000: Backup battery low or battery failure detected.
Replace the internal backup battery. Refer to the device manual for the correct battery type and replacement procedure to avoid data loss.

Frequently Asked Questions

What configuration software is required for the 6AV6446-1BA40-1BA3?

This panel is configured using Siemens SIMATIC WinCC flexible. The project must be created and transferred to the panel using a compatible version of WinCC flexible software.

What communication interfaces are available on this MP 370 panel?

The 6AV6446-1BA40-1BA3 supports MPI, PROFIBUS DP, and Ethernet (TCP/IP) communication interfaces, allowing direct connection to SIMATIC S7 PLCs and other compatible controllers.

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

Yes, the MP 370 is fully compatible with SIMATIC S7-300 and S7-400 PLCs via MPI or PROFIBUS DP, and can also communicate over Ethernet where supported.

What is the front panel protection rating of this unit?

The front panel of the 6AV6446-1BA40-1BA3 carries an IP65 protection rating, making it suitable for panel-mount installations where dust and water ingress protection is required.

What operating voltage does the MP 370 require?

The panel operates on a 24 V DC supply voltage, which is standard for SIMATIC HMI devices in industrial cabinet installations.

Troubleshooting

Display remains blank after power on

Check that 24 V DC is present at the power supply connector. Measure voltage at the panel input terminals. Inspect the internal fuse if accessible.

Ensure the 24 V DC supply is within tolerance. Replace any blown internal fuse with the correct rating. If the backlight has failed, the display unit or backlight inverter may require replacement.

Panel fails to establish communication with the PLC

Verify MPI or PROFIBUS cable connections and check bus termination at both ends of the network. Confirm the station address configured on the panel matches the project settings.

Replace or reseat communication cables. Correct the station address and baud rate in the WinCC flexible project. Ensure bus termination resistors are correctly installed at network endpoints.

Touchscreen does not respond or responds inaccurately

The resistive touchscreen may require recalibration. Access the panel's Control Panel via the Start menu on Windows CE and open the touch calibration utility.

Perform a full touchscreen recalibration using the built-in calibration tool. If the touch layer is physically damaged or unresponsive after calibration, the touch screen overlay will need to be replaced.

Project transfer from PC to panel fails

Check the transfer cable connection (MPI, PROFIBUS, or Ethernet). Verify that the panel is set to Transfer mode and that the correct communication interface is selected in WinCC flexible transfer settings.

Set the panel to Transfer mode via the Loader screen. Confirm the PC communication interface settings match the panel. Try an alternative transfer cable or interface if the issue persists.

Panel reboots unexpectedly or freezes during operation

Inspect the 24 V DC supply for voltage fluctuations or ripple. Check the project for memory overload or excessively large log files consuming panel resources.

Stabilize the power supply and ensure it meets the panel's current requirements. Archive and delete old log and alarm files from panel memory. Reload the project and update panel firmware if an older version is installed.

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