Siemens 6AV6446-1AA40-0BA3 SIMATIC MP 370

Name: Siemens 6AV6446-1AA40-0BA3 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-1AA40-0BA3
Price: 5547.00 EUR
Availability: InStock

€ 5.547,00

Condition

Clear

SKU: 6AV6446-1AA40-0BA3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-1AA40-0BA3 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 unit features a 12-inch TFT display and is part of the MP 370 series, which offers high-performance panel computing capabilities for complex process visualization. It is manufactured by Siemens and operates within the SIMATIC HMI ecosystem, integrating seamlessly with Siemens controllers and third-party systems.

The MP 370 panel is equipped with a 12-inch TFT color display with a resolution of 800 x 600 pixels (SVGA), supporting 256 colors. It runs on a Windows CE-based operating system and supports WinCC flexible runtime for HMI configuration and visualization. Communication interfaces include PROFIBUS DP, MPI, and Ethernet (TCP/IP), enabling connectivity to a wide range of PLCs and network infrastructures. The panel provides USB ports for peripheral connectivity and a CompactFlash card slot for data storage and project transfer. It operates on a 24 V DC supply and is rated IP65 at the front panel for protection against dust and water ingress.

The SIMATIC MP 370 is widely deployed in manufacturing, process industries, water treatment, and energy management applications where robust and reliable operator interface terminals are required. Its large display area and multi-protocol communication support make it suitable for complex SCADA-level visualization on the machine or line level. Industries such as automotive, food and beverage, chemical processing, and discrete manufacturing commonly use this panel for supervisory control and data acquisition tasks at the operator station level.

Technical Specifications

Display Size	12 inch
Display Type	TFT Color
Display Resolution	800 x 600 pixels (SVGA)
Display Colors	256 colors
Touch Technology	Resistive touchscreen
Input/Operating Voltage	24 V DC
IP/Protection Rating	IP65 (front panel)
Operating System	Windows CE
Communication Interface	PROFIBUS DP, MPI, Ethernet (TCP/IP)
Storage	CompactFlash card slot
USB Ports	2 x USB
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
Relative Humidity	10 % to 90 % (non-condensing)
Mounting	Panel mounting
Series/Product Family	SIMATIC MP 370

Common Error Codes & System Events

Event ID: 10000: Communication error to PLC or controller — connection to the configured PLC could not be established or was interrupted.
Check PROFIBUS/MPI/Ethernet cabling and termination resistors. Verify PLC address settings match the HMI project configuration. Restart both the panel and the PLC.
Event ID: 10001: Tag read error — the HMI panel cannot read a configured tag from the connected controller.
Verify the tag address exists in the PLC program and that the data type matches the HMI project configuration. Check communication connection integrity.
Event ID: 10002: Tag write error — the HMI panel cannot write a value to a configured tag in the connected controller.
Check that the target tag address is not write-protected in the PLC. Verify communication link and tag configuration in WinCC flexible.
Event ID: 20000: Project download error — transfer of the HMI project from the engineering PC to the panel failed.
Ensure the panel is in Transfer mode. Verify the communication cable and interface settings. Check that the WinCC flexible project is compiled without errors before transfer.
Event ID: 40000: Runtime startup error — WinCC flexible runtime failed to start or the project file is corrupted.
Re-transfer the HMI project to the panel. If the issue persists, perform a factory reset via the Control Panel and reload the project.
Event ID: 50000: Memory error — insufficient memory available to load or run the current HMI project.
Reduce the project size by optimizing graphics and scripts. Ensure the CompactFlash card is properly inserted and has sufficient free space.
Event ID: 60000: System fault — general operating system or hardware fault detected on the panel.
Perform a controlled restart of the panel. If the fault recurs, check for hardware damage and consider returning the unit for repair or replacement.

Frequently Asked Questions

What communication interfaces does the 6AV6446-1AA40-0BA3 support?

The MP 370 supports PROFIBUS DP, MPI, and Ethernet (TCP/IP) communication interfaces, allowing connectivity to Siemens S7 PLCs and other compatible controllers.

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

The panel is configured using Siemens WinCC flexible engineering software. Projects are compiled in WinCC flexible and transferred to the panel via Ethernet or serial connection.

What is the supply voltage for the SIMATIC MP 370?

The panel operates on a 24 V DC supply voltage.

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

Yes, the MP 370 can communicate directly with Siemens S7-300 and S7-400 PLCs via MPI or PROFIBUS DP, and also via Ethernet using the appropriate communication drivers in WinCC flexible.

What is the front panel protection rating of this unit?

The front panel of the MP 370 is rated IP65, providing full protection against dust ingress and protection against low-pressure water jets.

Troubleshooting

Display remains blank after power on

Check the 24 V DC supply voltage at the power connector. Verify the supply is within the specified range and that the connector is firmly seated.

Restore correct 24 V DC supply. If the supply is confirmed correct and the display remains blank, the internal power supply board or backlight inverter may be faulty and requires replacement.

HMI panel does not communicate with the PLC

Check the PROFIBUS, MPI, or Ethernet cable connections. Verify the bus address and baud rate settings on both the panel and the PLC match the project configuration.

Correct any address or baud rate mismatches in the WinCC flexible project and PLC configuration. Replace damaged cables and ensure proper PROFIBUS bus termination at both ends of the network.

Touchscreen does not respond or responds inaccurately

The touchscreen may require recalibration or the resistive touch surface may be damaged. Access the calibration utility via the Windows CE Control Panel.

Recalibrate the touchscreen using the calibration tool in the Control Panel. If calibration does not resolve the issue, the touchscreen overlay may need to be replaced.

Project transfer from PC to panel fails

Confirm the panel is set to Transfer mode. Check the Ethernet or serial cable connection between the engineering PC and the panel. Verify firewall settings on the PC are not blocking the transfer.

Set the panel to Transfer mode via the Start Center. Disable any PC firewall temporarily during transfer. Re-compile the WinCC flexible project and retry the transfer.

Panel reboots repeatedly or freezes during operation

This may indicate a corrupted project file, insufficient memory, or a hardware fault. Check the CompactFlash card for errors and review the system event log in WinCC flexible.

Re-transfer a freshly compiled project to the panel. Replace the CompactFlash card if it shows errors. If the problem persists, perform a factory reset and reload the project; escalate to hardware repair if rebooting continues.

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