Siemens 6AV6446-1AA41-0AA3 SIMATIC MP 370

Name: Siemens 6AV6446-1AA41-0AA3 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-1AA41-0AA3
Price: 4076.00 EUR
Availability: InStock

€ 4.076,00

Condition

Clear

SKU: 6AV6446-1AA41-0AA3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-1AA41-0AA3 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 controller families.

The MP 370 (6AV6446-1AA41-0AA3) is equipped with a 12.1-inch TFT color display with a resolution of 800 x 600 pixels (SVGA), supporting up to 256 colors. The panel runs on a Windows CE operating system and is configured using WinCC flexible engineering software. It provides communication interfaces including MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling flexible integration into existing automation networks. The unit supports a touch screen input method and includes a compact flash card slot for additional memory expansion, along with USB ports for peripheral connectivity.

The SIMATIC MP 370 is widely used in machine building, automotive manufacturing, process industries, and factory automation where a robust and versatile HMI solution is required. Its combination of a large display, multiple communication interfaces, and Windows CE-based runtime environment makes it suitable for complex visualization tasks, recipe management, trend displays, and alarm logging. The panel is commonly found on packaging machines, printing presses, conveyor systems, and process control stations.

Technical Specifications

Display Size	12.1 inch
Display Resolution	800 x 600 pixels (SVGA)
Display Colors	256 colors
Display Type	TFT color LCD
Touch Technology	Resistive touch screen
Operating System	Windows CE
Input/Operating Voltage	24 V DC
Power Consumption	Approx. 30 W
Communication Interface	MPI, PROFIBUS DP, Ethernet (TCP/IP), RS-422/485
Memory	12 MB user memory (expandable via CompactFlash)
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 Rating (Front)	IP65
Mounting	Panel mounting
Certifications	CE, UL, cULus

Common Error Codes & System Events

Event ID: 1000: Configuration error detected during startup; the project loaded on the panel contains configuration inconsistencies.
Re-transfer the project using WinCC flexible. Verify the project is compiled without errors before downloading.
Event ID: 10000: Communication connection to the PLC lost or could not be established.
Check MPI/PROFIBUS/Ethernet cabling and connector integrity. Verify PLC address settings match the HMI project configuration.
Event ID: 10001: PLC is not responding within the configured timeout period.
Check PLC operating state and ensure it is in RUN mode. Verify communication parameters (baud rate, station address) on both HMI and PLC.
Event ID: 20000: Tag read error; the HMI cannot read the configured tag address from the PLC.
Verify the tag address exists in the PLC program and the data block is not write-protected. Check for address offset errors in the HMI project.
Event ID: 40000: System memory low; available runtime memory is below the critical threshold.
Reduce the number of active screens or objects. Clear alarm logs and trend buffers. Consider expanding storage with a CompactFlash card.
Event ID: 70010: CompactFlash card not found or cannot be accessed.
Reseat the CompactFlash card and ensure it is properly formatted. Replace the card if it is not recognized after reinsertion.
Event ID: 3000: Printer communication error; the configured printer is not responding.
Check printer connection cable and printer power state. Verify printer driver settings in the HMI project configuration.

Frequently Asked Questions

What engineering software is required to configure the MP 370 (6AV6446-1AA41-0AA3)?

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

What communication protocols does the 6AV6446-1AA41-0AA3 support?

This panel supports MPI, PROFIBUS DP, and Ethernet (TCP/IP) for PLC communication, as well as RS-422/485 serial interfaces, allowing connection to a wide range of Siemens and third-party controllers.

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

Yes, the MP 370 communicates natively with SIMATIC S7-300 and S7-400 PLCs via MPI or PROFIBUS DP, and also supports S7 communication over Ethernet.

Can the memory on the 6AV6446-1AA41-0AA3 be expanded?

Yes, the panel includes a CompactFlash card slot that allows memory expansion for storing additional project data, alarm logs, recipes, and trend archives.

What is the operating voltage of the MP 370?

The panel operates on 24 V DC, which is the standard supply voltage for SIMATIC HMI panels in industrial cabinet installations.

Troubleshooting

Display remains blank after power on

Check the 24 V DC supply voltage at the power connector. Verify the internal fuse and inspect the backlight. Confirm the panel is not in screen saver mode.

Restore the 24 V DC supply if absent. Touch the screen to wake from screen saver. If the backlight has failed, the display assembly or inverter board may need replacement.

HMI cannot establish communication with the PLC

Verify the cable type and wiring for MPI or PROFIBUS DP connections. Check that the station address and baud rate configured in the HMI project match the PLC settings.

Correct any address or baud rate mismatches in WinCC flexible and re-transfer the project. Replace the communication cable if continuity testing reveals a fault.

Touch screen does not respond accurately or is misaligned

The touch screen calibration may have drifted. Access the Windows CE control panel to run the touch calibration utility.

Perform a touch screen recalibration via Start > Settings > Control Panel > Stylus on the Windows CE desktop. If the issue persists, the touch overlay may require replacement.

Project transfer fails from engineering PC to the panel

Check the Ethernet or MPI connection between the PC and the panel. Ensure the panel is in transfer mode and the correct interface is selected in WinCC flexible transfer settings.

Set the panel to transfer mode via the Start Center. Verify firewall settings on the engineering PC are not blocking the transfer. Try an alternative transfer cable or interface if the issue persists.

Panel repeatedly restarts or crashes during operation

This may indicate corrupted project data, insufficient memory, or a hardware fault. Check the event log in the Windows CE system for error entries.

Re-transfer a freshly compiled project from WinCC flexible. Clear all logs and buffers. If the problem continues, perform a factory reset via the panel's Start Center and re-commission the device.

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