Siemens 6AV6446-1BA40-0BA4 SIMATIC MP 370

Name: Siemens 6AV6446-1BA40-0BA4 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-1BA40-0BA4
Price: 2995.00 EUR
Availability: InStock

€ 2.995,00

Condition

Clear

SKU: 6AV6446-1BA40-0BA4 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-1BA40-0BA4 is a Multi Panel (MP 370) belonging to the SIMATIC HMI Multi Panel series, manufactured by Siemens. It is a high-performance operator panel designed for demanding visualization and control tasks in industrial automation environments. The MP 370 features a 12-inch TFT display and runs on the Windows CE operating system, providing a robust platform for human-machine interface applications.

The 6AV6446-1BA40-0BA4 variant is equipped with a 12.1-inch TFT color display with a resolution of 800 x 600 pixels (SVGA) and supports touch screen operation. It includes multiple communication interfaces such as MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling flexible integration into various network architectures. The panel features 12 MB of user memory for project data, a CompactFlash card slot for data storage and project transfer, and a USB interface for peripheral connectivity. It operates on 24 V DC supply voltage and is built to meet the rigorous demands of industrial environments.

The SIMATIC MP 370 is widely used in manufacturing, process automation, and machine building industries where complex visualization tasks and high graphical performance are required. It is suitable for applications in automotive production lines, chemical processing plants, food and beverage manufacturing, and packaging machinery. Its compatibility with Siemens SIMATIC S7 PLCs and WinCC flexible configuration software makes it a natural choice for Siemens-based automation systems requiring a capable and reliable operator interface.

Technical Specifications

Display Size	12.1 inch
Display Resolution	800 x 600 pixels (SVGA)
Display Colors	256 colors
Touch Technology	Resistive touch screen
Input/Operating Voltage	24 V DC
Power Consumption	Max. 40 W
User Memory	12 MB
Operating System	Windows CE
Communication Interface	MPI, PROFIBUS DP, Ethernet (TCP/IP), USB
Storage Slot	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)
Mounting	Panel mounting
Certifications	CE, UL, cULus

Common Error Codes & System Events

Event ID: 10000: Communication error between HMI panel and PLC. The configured connection to the controller cannot be established or has been interrupted.
Check MPI/PROFIBUS or Ethernet cable connections and termination resistors. Verify PLC address settings and communication parameters in WinCC flexible project match the hardware configuration.
Event ID: 10001: Connection to PLC timed out. The HMI panel did not receive a response from the controller within the expected time frame.
Check network cabling and connector integrity. Verify PLC is in RUN mode and communication parameters (baud rate, station address) are correctly configured on both devices.
Event ID: 20000: Tag read error. The HMI panel was unable to read the value of a configured tag from the PLC.
Verify the tag address in the WinCC flexible project matches the actual data block or memory area in the PLC program. Check PLC program is running and the address exists.
Event ID: 40000: Project download error. Transfer of the HMI project from the configuration PC to the panel failed.
Check USB or Ethernet transfer cable connection. Ensure the panel is in Transfer mode and the correct transfer channel is selected in WinCC flexible Transfer settings.
Event ID: 50000: System memory low. Available memory on the HMI panel is insufficient to load or run the current project.
Reduce project size by optimizing graphics and scripts. Delete unnecessary data from the CompactFlash card. Consider archiving historical data to free up memory.
Event ID: 60000: CompactFlash card error. The panel cannot read from or write to the inserted CompactFlash card.
Remove and reinsert the CompactFlash card. Check the card for damage or corruption. Replace the CompactFlash card if the error persists. Ensure the card is formatted correctly (FAT16/FAT32).
Event ID: 70000: Backup battery low or missing. The internal backup battery voltage has dropped below the minimum threshold.
Replace the internal backup battery with the correct Siemens replacement battery. Refer to the MP 370 operating instructions for battery replacement procedure to avoid data loss.

Frequently Asked Questions

What configuration software is used to program the SIMATIC MP 370 (6AV6446-1BA40-0BA4)?

The MP 370 is configured using Siemens WinCC flexible software. The project is then transferred to the panel via USB, Ethernet, or MPI/PROFIBUS connection.

Which communication interfaces are available on the 6AV6446-1BA40-0BA4?

This panel provides MPI, PROFIBUS DP, and Ethernet (TCP/IP) interfaces for PLC communication, as well as USB ports for peripheral devices and project transfer. A serial RS-232/RS-422/RS-485 interface is also available.

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

Yes, the SIMATIC MP 370 is fully compatible with Siemens S7-300 and S7-400 PLCs via MPI or PROFIBUS DP. It can also communicate with S7-200 PLCs and third-party controllers via the available serial interfaces.

What is the display type and resolution of the 6AV6446-1BA40-0BA4?

The panel features a 12.1-inch TFT color display with a resolution of 800 x 600 pixels (SVGA) and supports resistive touch screen input.

What is the supply voltage requirement for the MP 370?

The SIMATIC MP 370 requires a 24 V DC supply voltage. Ensure the power supply can deliver sufficient current to meet the panel's maximum power consumption of 40 W.

Troubleshooting

Display remains blank after power on

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

Verify and correct the power supply voltage and connections. If supply voltage is confirmed correct and the display remains blank, the internal power supply board or backlight inverter may require replacement or repair.

Touch screen does not respond or responds inaccurately

Attempt to recalibrate the touch screen via the panel's Start Center or Control Panel settings. Check for physical damage or contamination on the touch surface.

Perform a touch screen calibration through the Windows CE Control Panel. Clean the touch surface with a soft, dry cloth. If calibration fails or the touch screen remains unresponsive, the touch screen overlay or controller board may need replacement.

HMI panel cannot establish communication with the PLC

Verify cable connections on MPI, PROFIBUS, or Ethernet interface. Check that the station address and baud rate configured in the WinCC flexible project match the PLC and network settings.

Correct any mismatched communication parameters in the WinCC flexible project and re-download to the panel. Replace the communication cable if damaged. Ensure PROFIBUS termination resistors are correctly placed at both ends of the bus.

Project transfer from PC to panel fails

Confirm the panel is set to Transfer mode via the Start Center. Check the transfer channel settings in WinCC flexible match the physical connection being used (USB, Ethernet, or MPI).

Switch the panel to Transfer mode and retry the download. If using Ethernet, verify IP address settings on both PC and panel. Try an alternative transfer cable or interface if the issue persists.

Panel reboots unexpectedly or freezes during operation

Check the supply voltage for fluctuations or drops below 24 V DC. Review the project for memory-intensive scripts or excessive tag polling rates that may overload the panel CPU.

Stabilize the power supply and ensure adequate current capacity. Optimize the WinCC flexible project by reducing update cycles and script complexity. If reboots continue, check for hardware faults and consider a firmware update or panel repair.

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