Siemens 6AV6446-1AA40-1BA4 SIMATIC MP 370

Name: Siemens 6AV6446-1AA40-1BA4 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-1AA40-1BA4
Price: 2495.00 EUR
Availability: InStock

€ 2.495,00

Condition

Clear

SKU: 6AV6446-1AA40-1BA4 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-1AA40-1BA4 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 is built to operate reliably in harsh industrial conditions.

The 6AV6446-1AA40-1BA4 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 runs on the Windows CE operating system and is compatible with WinCC flexible runtime software for HMI configuration and visualization. The panel provides multiple communication interfaces including MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling flexible integration into existing automation networks. It offers 12 MB of user memory for project data and supports USB ports for peripheral connectivity and data transfer.

The SIMATIC MP 370 is widely used in machine building, automotive manufacturing, process industries, and factory automation applications where a robust and versatile HMI solution is required. Its combination of touch screen operation, broad communication capability, and compatibility with Siemens S7 PLC families makes it suitable for complex visualization tasks on production lines, packaging machines, and process control panels.

Technical Specifications

Display Size	12.1 inch
Display Resolution	800 x 600 pixels (SVGA)
Display Colors	64,000 colors
Touch Technology	Resistive touch screen
Input/Operating Voltage	24 V DC
Power Consumption	Max. 30 W
Operating System	Windows CE
User Memory	12 MB
Communication Interface	MPI, PROFIBUS DP, Ethernet (TCP/IP), USB
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), IP20 (rear)
Mounting	Panel mounting
Certifications	CE, UL, cULus
Series/Product Family	SIMATIC HMI Multi Panel MP 370

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 cabling and connector integrity. Verify PLC address settings match the HMI project configuration. Confirm the PLC is powered and in RUN mode.
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 cable and communication interface settings. Verify baud rate and station address configuration on both HMI and PLC. Restart both devices if necessary.
Event ID: 20000: Tag read error. A configured tag could not be read from the PLC, possibly due to an incorrect address or data type mismatch.
Verify the tag address and data type in the WinCC flexible project. Ensure the corresponding data block or memory area exists in the PLC program.
Event ID: 20001: Tag write error. A write operation to a PLC tag failed, possibly due to access restrictions or an invalid address.
Check that the target PLC memory area is writable and the address is correctly configured in the HMI project. Verify PLC program is not write-protecting the area.
Event ID: 40000: Project download error. Transfer of the HMI project from the engineering PC to the panel failed.
Ensure the correct transfer cable or network connection is used. Check that the panel is in Transfer mode. Verify WinCC flexible version compatibility with the panel firmware.
Event ID: 50000: Runtime system error. The WinCC flexible runtime software on the panel has encountered an internal fault and may have stopped.
Restart the panel. If the error persists, reload the HMI project. Consider updating the panel firmware to the latest compatible version.
Event ID: 60000: Insufficient memory. The panel does not have enough free user memory to load or run the current project.
Reduce the project size by optimizing graphics, removing unused tags, or compressing images. Ensure no unnecessary applications are running on the Windows CE environment.

Frequently Asked Questions

What PLC families is the SIMATIC MP 370 compatible with?

The MP 370 is compatible with Siemens S7-200, S7-300, and S7-400 PLC families via MPI or PROFIBUS DP interfaces, as well as third-party controllers accessible via Ethernet TCP/IP connections configured in WinCC flexible.

What software is used to configure and program the MP 370?

The MP 370 is configured using Siemens WinCC flexible engineering software. Projects are created on a PC and transferred to the panel via MPI, PROFIBUS, Ethernet, or USB.

What is the input voltage requirement for the 6AV6446-1AA40-1BA4?

The panel requires a 24 V DC power supply. Ensure the supply is within the specified tolerance range and adequately rated for the panel's power consumption.

Can the MP 370 be used with PROFIBUS DP networks?

Yes, the MP 370 supports PROFIBUS DP communication, allowing it to be integrated directly into PROFIBUS-based automation systems alongside Siemens S7 PLCs and other PROFIBUS-compatible devices.

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

The front panel of the MP 370 carries an IP65 protection rating, making it suitable for installation in environments where dust and water spray may be present.

Troubleshooting

Display remains blank after power on

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

Verify and restore the 24 V DC supply. If voltage is correct and the display remains blank, the backlight or internal power supply board may be faulty and require replacement.

Touch screen does not respond or responds inaccurately

Determine whether the issue is a complete lack of response or positional inaccuracy. Check for physical damage or contamination on the touch surface.

Perform a touch screen calibration via the Windows CE control panel or the SIMATIC HMI startup menu. If calibration does not resolve the issue, the touch screen overlay may need replacement.

HMI cannot establish communication with the PLC

Verify the communication cable connections on both the HMI and PLC sides. Check that the MPI or PROFIBUS address configured in the HMI project matches the PLC station address.

Correct any address mismatches in the WinCC flexible project and reload it to the panel. Replace the communication cable if it is damaged. Ensure the PLC is powered and in RUN mode.

Panel repeatedly restarts or crashes during runtime

Check for project errors in the WinCC flexible runtime log. Verify that the project does not exceed the panel's available user memory. Check the 24 V DC supply for voltage fluctuations.

Optimize the HMI project to reduce memory usage. Stabilize the power supply. If the problem persists, update the panel firmware or perform a factory reset and reload the project.

Project transfer from PC to panel fails

Confirm the panel is set to Transfer mode via the startup menu. Check the transfer connection type (USB, Ethernet, or MPI) and verify the correct interface is selected in WinCC flexible.

Switch the panel to Transfer mode manually. Ensure the correct COM port or IP address is configured in the WinCC flexible transfer settings. Try an alternative transfer method such as USB if network transfer fails.

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