Siemens 6AV6446-1AA40-1BA3 SIMATIC MP 370

Name: Siemens 6AV6446-1AA40-1BA3 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-1AA40-1BA3
Price: 2495.00 EUR
Availability: InStock

€ 2.495,00

Condition

Clear

SKU: 6AV6446-1AA40-1BA3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-1AA40-1BA3 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, which bridges the gap between standard operator panels and full PC-based systems. It is engineered to operate reliably in harsh industrial conditions and integrates seamlessly with Siemens SIMATIC controllers.

The MP 370 (6AV6446-1AA40-1BA3) is equipped with a 12" TFT color display with a resolution of 800 x 600 pixels (SVGA) and supports touch screen operation. It runs on a Windows CE-based operating system and is configured using SIMATIC WinCC flexible engineering software. The panel provides communication interfaces including MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling flexible integration into existing automation networks. It features a CompactFlash card slot for project storage and data logging, and includes USB ports for peripheral connectivity.

The SIMATIC MP 370 is widely used in machine building, automotive manufacturing, food and beverage processing, and chemical industries where a robust and versatile HMI solution is required. Its combination of touch input, multiple communication interfaces, and Windows CE-based runtime environment makes it suitable for complex visualization tasks, recipe management, alarm logging, and trend displays. The panel's industrial-grade construction and broad controller compatibility make it a practical choice for both OEM machine builders and end-user plant installations.

Technical Specifications

Display Size	12 inch
Display Resolution	800 x 600 pixels (SVGA)
Display Colors	256 colors
Touch Technology	Resistive touch screen
Operating System	Windows CE
Input/Operating Voltage	24 V DC
Power Consumption	Max. 30 W
Communication Interface	MPI, PROFIBUS DP, Ethernet (TCP/IP), RS-422/485
Memory	12 MB user memory (project); CompactFlash card slot
USB Ports	2 x USB 1.1
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
Series/Product Family	SIMATIC HMI Multi Panel MP 370

Common Error Codes & System Events

Event ID: 1000: Project loading error — the HMI project could not be loaded from memory or CompactFlash card.
Verify the project file is correctly transferred to the panel. Re-download the project using WinCC flexible. Check the CompactFlash card for errors or replace it.
Event ID: 10000: Communication error — connection to the configured PLC or controller has been lost.
Check MPI/PROFIBUS or Ethernet cabling and connectors. Verify the PLC address and communication parameters in the WinCC flexible project match the hardware configuration.
Event ID: 10001: Timeout on communication link — no response received from the controller within the configured timeout period.
Check network integrity and cable connections. Verify PLC is powered and running. Increase the communication timeout value in the HMI project settings if necessary.
Event ID: 20000: Tag read error — a configured tag could not be read from the connected controller.
Verify the tag address is correctly configured in WinCC flexible and corresponds to a valid address in the PLC. Check communication link status.
Event ID: 40000: Alarm logging error — the alarm log file could not be written, typically due to insufficient storage space.
Check available memory on the CompactFlash card. Delete old log files or increase the storage medium capacity. Verify the log file path configuration in the project.
Event ID: 50000: Recipe data error — recipe records could not be read from or written to storage.
Check the recipe configuration in WinCC flexible. Verify the CompactFlash card is properly inserted and has sufficient free space. Re-download the project if the recipe structure has changed.
Event ID: 70000: System runtime error — an internal software exception has occurred in the WinCC flexible runtime environment.
Restart the HMI panel. If the error persists, re-download the project. Consider updating the WinCC flexible runtime version on the panel if a newer compatible version is available.

Frequently Asked Questions

What engineering software is required to configure the SIMATIC MP 370 (6AV6446-1AA40-1BA3)?

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

Which PLC families are compatible with this MP 370 panel?

The MP 370 supports communication with SIMATIC S7-200, S7-300, S7-400, and S7-1200 controllers via MPI, PROFIBUS DP, or Ethernet interfaces. Third-party controllers may also be connected via serial interfaces using appropriate drivers.

What is the supply voltage for the 6AV6446-1AA40-1BA3?

The panel operates on 24 V DC. Ensure the power supply is within the permissible voltage tolerance range as specified in the device manual.

Does the MP 370 support data logging and trend displays?

Yes, the MP 370 supports data logging, alarm logging, recipe management, and trend curve displays as part of the WinCC flexible runtime functionality. Log data can be stored on the internal memory or a CompactFlash card.

What is the front panel protection rating of this HMI?

The front panel of the MP 370 carries an IP65 protection rating, making it suitable for installation in control cabinet doors where it may be exposed to dust and water spray.

Troubleshooting

Display remains blank after power on

Measure the 24 V DC supply voltage at the power connector on the rear of the panel. Check that the voltage is within the permissible range. Inspect the internal fuse if accessible.

Restore the correct 24 V DC supply. If the supply is correct but the display remains blank, the backlight inverter or the display itself may have failed and the unit should be sent for repair or the backlight replaced.

Touch screen does not respond or responds inaccurately

Attempt to recalibrate the touch screen through the Windows CE control panel or the SIMATIC HMI startup menu. Check for physical damage or contamination on the touch surface.

Perform a touch screen recalibration via the panel's Start Center or Windows CE settings. Clean the touch surface with a soft cloth. If calibration does not resolve the issue, the touch overlay may need replacement.

Panel fails to establish communication with the PLC

Verify the communication cable type and wiring for MPI, PROFIBUS, or Ethernet. Check the PLC address and baud rate settings in the WinCC flexible project against the actual PLC configuration. Use a network diagnostic tool to confirm physical link integrity.

Correct any address or baud rate mismatches in the HMI project and re-download. Replace faulty cables or connectors. Ensure the correct communication driver is selected in the WinCC flexible project for the connected PLC type.

Project cannot be downloaded to the panel

Check the transfer connection (Ethernet, USB, or MPI). Verify the panel is set to Transfer mode in the Start Center. Confirm the PC running WinCC flexible can reach the panel's IP address or MPI address.

Switch the panel to Transfer mode manually via the Start Center. Verify firewall settings on the engineering PC are not blocking the transfer. Use a direct Ethernet crossover or USB connection if network transfer fails.

CompactFlash card not recognized by the panel

Remove and reinsert the CompactFlash card. Check the card for physical damage. Attempt to read the card on a PC to verify it is not corrupted or improperly formatted.

Format the CompactFlash card to FAT16 or FAT32 as required by the panel. Replace the card if it is physically damaged. Ensure the card capacity is within the supported range for the MP 370 panel.

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