Siemens 6AV6446-2AA45-3BY3 SIMATIC MP 377

Name: Siemens 6AV6446-2AA45-3BY3 SIMATIC MP 377
Brand: Siemens
SKU: 6AV6446-2AA45-3BY3
Price: 2495.00 EUR
Availability: InStock

€ 2.495,00

Condition

Clear

SKU: 6AV6446-2AA45-3BY3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-2AA45-3BY3 is a Multi Panel belonging to the SIMATIC MP 377 series, part of Siemens' SIMATIC HMI product family. This panel is a high-performance operator interface device designed for demanding industrial visualization and control tasks. It runs on the Windows CE operating system and is engineered to integrate seamlessly with Siemens SIMATIC automation systems.

The MP 377 features a 15-inch TFT display with a resolution of 1024 x 768 pixels and 64,000 colors, providing clear and detailed process visualization. It supports both touch and key operation, offering flexibility in operator interaction. Communication interfaces include PROFIBUS DP, PROFINET (Ethernet), MPI, and USB ports, enabling broad connectivity with PLCs and other automation components. The panel is configured using Siemens WinCC flexible engineering software and supports a range of functions including alarm management, recipe management, trend displays, and scripting.

The SIMATIC MP 377 is widely deployed in manufacturing, process industries, automotive production, and machine building applications where a robust and feature-rich HMI is required. Its large display size and multi-interface connectivity make it suitable for complex SCADA-level visualization at the machine or line level. The panel's compatibility with SIMATIC S7 PLCs and support for industry-standard communication protocols make it a practical choice for both new installations and system upgrades.

Technical Specifications

Display Size	15 inch
Display Resolution	1024 x 768 pixels (XGA)
Display Colors	64,000 colors
Display Type	TFT LCD
Touch Technology	Resistive touchscreen with function keys
Operating System	Windows CE 6.0
Input/Operating Voltage	24 V DC
Power Consumption	Approx. 60 W
Communication Interface	PROFIBUS DP, PROFINET (Ethernet RJ45), MPI, USB
Memory	12 MB user memory (project); 64 MB RAM
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
Series/Product Family	SIMATIC MP 377

Common Error Codes & System Events

Event ID: 1000000: Project transfer error — the HMI panel could not receive the project from the engineering station.
Check the communication cable and interface settings. Ensure WinCC flexible is configured for the correct transfer channel (Ethernet or MPI/PROFIBUS). Retry the transfer.
Event ID: 1000002: Project start error — the loaded project cannot be started on the panel.
Verify project compatibility with the panel type and firmware version. Re-transfer a compatible project using WinCC flexible.
Event ID: 1000070: Connection to PLC failed — the HMI cannot establish communication with the configured PLC.
Check network cables, IP address settings, and PLC communication parameters. Verify that the PLC is in RUN mode and the connection configuration in the project is correct.
Event ID: 1000071: Connection to PLC interrupted — an established PLC connection was lost during operation.
Inspect network cabling and connectors. Check PLC status and network load. Restart the HMI panel and PLC if the connection is not automatically restored.
Event ID: 1000201: Tag read error — a configured tag could not be read from the PLC.
Verify the tag address in the WinCC flexible project matches the actual PLC data block or memory address. Check PLC program for the correct data area.
Event ID: 1000202: Tag write error — a value could not be written to the PLC tag.
Check that the target PLC address is not write-protected. Verify tag configuration in the project and ensure the PLC is in a state that accepts write commands.
Event ID: 1000400: Recipe data error — recipe records could not be read from or written to the configured storage location.
Check available storage memory on the panel or external memory card. Verify recipe configuration in the project and ensure the storage medium is properly inserted and formatted.
Event ID: 1000500: Alarm buffer overflow — the alarm buffer has reached its maximum capacity.
Acknowledge and clear pending alarms. Review the alarm configuration to reduce unnecessary alarm triggers. Consider increasing the alarm buffer size in the project settings.

Frequently Asked Questions

What engineering software is required to configure the SIMATIC MP 377?

The MP 377 is configured using Siemens WinCC flexible 2008 or later. Projects are compiled and transferred to the panel via Ethernet, MPI, or PROFIBUS DP.

What communication protocols does the 6AV6446-2AA45-3BY3 support?

This panel supports PROFIBUS DP, MPI, and PROFINET (Industrial Ethernet via RJ45). USB ports are also available for project transfer and peripheral devices.

Is the MP 377 compatible with SIMATIC S7-300 and S7-400 PLCs?

Yes, the MP 377 is fully compatible with SIMATIC S7-300 and S7-400 PLCs via MPI, PROFIBUS DP, or PROFINET connections. It can also communicate with S7-1200 and S7-1500 via Ethernet with appropriate driver configuration.

What is the operating voltage for this HMI panel?

The panel operates on 24 V DC. A stable, regulated 24 V DC power supply with sufficient current capacity is required for reliable operation.

Can the MP 377 be used as a standalone SCADA station?

The MP 377 can perform advanced visualization tasks including trending, alarming, and recipe management, but it is primarily a machine-level HMI panel rather than a full SCADA server. It runs Windows CE and does not support full WinCC SCADA software.

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.

Ensure the power supply is providing stable 24 V DC within the specified tolerance. Replace the power supply or internal fuse if faulty. If voltage is correct and display remains blank, the backlight or display unit may require replacement.

Panel does not respond to touch input

Test touch functionality in the Windows CE control panel touch calibration utility. Check for physical damage or contamination on the touchscreen surface.

Recalibrate the touchscreen using the built-in calibration tool accessible during startup. Clean the screen surface with a soft, dry cloth. If calibration fails repeatedly, the touchscreen digitizer may need to be replaced.

Cannot transfer project from WinCC flexible to the panel

Verify the transfer channel settings in WinCC flexible match the physical connection being used (Ethernet IP address, MPI address, or PROFIBUS address). Check that the panel is in Transfer mode.

Place the panel in Transfer mode via the Start Center menu. Confirm IP address or bus address settings on both the panel and the engineering PC. Check firewall settings on the PC that may block the transfer connection.

HMI loses connection to PLC intermittently during operation

Monitor the network for excessive load or cable faults. Check PROFIBUS termination resistors if using PROFIBUS DP. For Ethernet, check switch and cable integrity.

Replace damaged cables and ensure proper PROFIBUS termination at both ends of the segment. For Ethernet connections, use industrial-grade managed switches. Verify that the PLC scan cycle is not overloaded, causing communication timeouts.

Panel restarts unexpectedly or freezes during operation

Check the 24 V DC supply for voltage dips or ripple using an oscilloscope. Review the panel's event log in Windows CE for system error entries. Check ambient temperature around the panel.

Ensure the power supply is adequately rated and free from interference. Improve ventilation around the panel to keep operating temperature within the 0–50 °C range. If the issue persists, update the panel firmware to the latest version available from Siemens support.

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