Siemens 6AV6446-1AA41-1BB4 SIMATIC MP 370

Name: Siemens 6AV6446-1AA41-1BB4 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-1AA41-1BB4
Price: 1995.00 EUR
Availability: InStock

€ 1.995,00

Condition

Clear

SKU: 6AV6446-1AA41-1BB4 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-1AA41-1BB4 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 12-inch TFT display and is part of Siemens' high-performance Multi Panel series, offering a Windows CE-based operating system for flexible HMI application development. It serves as a powerful operator interface capable of running SIMATIC WinCC flexible runtime software.

The MP 370 (6AV6446-1AA41-1BB4) is equipped with a touch-sensitive screen and supports multiple communication interfaces including MPI, PROFIBUS DP, and Ethernet, enabling seamless integration into existing Siemens automation networks. The panel features onboard flash memory for project storage and is capable of handling complex graphics, trends, alarms, and recipe management. Its robust industrial-grade housing and wide operating temperature range make it suitable for continuous operation in demanding factory environments. The unit supports connection to SIMATIC S7-200, S7-300, and S7-400 PLCs as well as third-party controllers via configurable drivers.

The SIMATIC MP 370 is widely deployed in manufacturing, automotive, food and beverage, chemical, and process industries where a high-resolution operator panel with advanced visualization capabilities is required. It is commonly installed on machine control panels, production lines, and process control stations where operators need to monitor and interact with complex automation systems. The combination of touch operation, broad communication support, and WinCC flexible compatibility makes it a versatile solution for mid-to-large scale HMI applications.

Technical Specifications

Display Size	12 inch
Display Type	TFT color LCD
Display Resolution	640 x 480 pixels (VGA)
Display Colors	256 colors
Touch Technology	Resistive touchscreen
Operating System	Windows CE
Input/Operating Voltage	24 V DC
Power Consumption	Approx. 30 W
Communication Interface	MPI, PROFIBUS DP, Ethernet (RJ45), RS-422/485
Memory	12 MB flash (user memory)
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
Relative Humidity	10% to 90% (non-condensing)
IP Rating (Front)	IP65
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 or controller. The connection has been interrupted or cannot be established.
Check MPI/PROFIBUS/Ethernet cabling and connector integrity. Verify PLC address settings and communication parameters in WinCC flexible project. Restart both PLC and HMI panel.
Event ID: 10001: Connection to PLC lost during runtime operation. The HMI panel can no longer read or write tags.
Inspect network cables and connectors. Confirm PLC is powered and in RUN mode. Check that the configured PLC address matches the physical device address.
Event ID: 20000: Project download error. The project transfer from the engineering PC to the HMI panel has failed.
Verify the transfer cable or network connection between the PC and HMI. Ensure WinCC flexible version is compatible with the panel firmware. Check available flash memory on the panel.
Event ID: 40000: Tag read/write error. A configured tag cannot be read from or written to the PLC.
Verify the tag address configuration in the WinCC flexible project. Confirm the PLC data block or memory area exists and is accessible. Check PLC program for address conflicts.
Event ID: 50000: Alarm logging error. The alarm buffer is full or the alarm log file cannot be written.
Clear the alarm buffer via the HMI runtime or project configuration. Check available storage memory. Reduce the number of active alarms or increase the alarm buffer size in the project settings.
Event ID: 70000: Recipe data error. A recipe record cannot be read from or written to the configured storage location.
Check the recipe configuration in WinCC flexible. Verify that the target storage location (flash or memory card) has sufficient free space. Re-transfer the project if recipe configuration is corrupted.
Event ID: 30000: System memory low warning. Available RAM or flash memory on the HMI panel is critically low.
Reduce the number of open runtime applications. Delete unused project files or data logs from the panel memory. Consider archiving historical data to an external memory card.

Frequently Asked Questions

Which PLC families are compatible with the SIMATIC MP 370 (6AV6446-1AA41-1BB4)?

The MP 370 is compatible with SIMATIC S7-200, S7-300, and S7-400 PLCs via MPI or PROFIBUS DP. It also supports Ethernet-based communication and can connect to third-party controllers using configurable communication drivers in WinCC flexible.

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

The SIMATIC MP 370 is programmed using Siemens SIMATIC WinCC flexible software. The project is created on an engineering PC and transferred to the panel via Ethernet, MPI, or USB/serial connection.

What is the display size and touch technology of the 6AV6446-1AA41-1BB4?

This panel features a 12-inch TFT color LCD with a resistive touchscreen interface, offering a resolution of 640 x 480 pixels (VGA) and 256-color display capability.

What is the supply voltage required for the MP 370 panel?

The SIMATIC MP 370 requires a 24 V DC power supply. Ensure the power source is stable and within the specified tolerance range to prevent panel faults or unexpected restarts.

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 networks for communication with compatible PLCs and other field devices.

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 and inspect the supply cable for damage. Verify the internal fuse if accessible.

Restore correct 24 V DC supply. Replace any damaged power cables or connectors. If the supply voltage is correct but the display remains blank, the internal power supply board or backlight inverter may require replacement.

Touchscreen does not respond or responds inaccurately

Attempt to recalibrate the touchscreen via the panel's Control Panel settings in Windows CE. Check for physical damage or contamination on the screen surface.

Perform a touchscreen recalibration through the Windows CE Control Panel. Clean the screen surface with a soft, dry cloth. If calibration fails repeatedly, the touchscreen overlay or controller board may be faulty and require replacement.

HMI panel cannot communicate with the PLC

Verify the communication cable connections at both the panel and PLC ends. Check the configured communication interface (MPI, PROFIBUS, Ethernet) and confirm that address settings match between the panel project and the PLC.

Replace or reseat communication cables. Correct any address mismatches in the WinCC flexible project. Ensure the PLC is powered and in RUN mode. Re-download the project to the panel after correcting configuration errors.

Panel restarts unexpectedly or enters a boot loop

Check the 24 V DC supply for voltage drops or instability under load. Inspect the panel for overheating by verifying ambient temperature and ventilation around the unit.

Stabilize the power supply and ensure it is rated for the panel's power consumption. Improve ventilation or reduce ambient temperature. If the issue persists, the internal power supply module may be failing and should be inspected or replaced.

Project cannot be transferred from engineering PC to the panel

Verify the transfer connection type (Ethernet, MPI, or serial) and confirm the correct transfer settings are configured in WinCC flexible. Check that the panel is in Transfer mode.

Switch the panel to Transfer mode via the Start Center or Control Panel. Confirm IP address or MPI address settings match between the PC and panel. Reinstall the WinCC flexible communication drivers on the engineering PC if the connection is not recognized.

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