Siemens 6AV6446-7AA41-3BY3 SIMATIC MP 377

Name: Siemens 6AV6446-7AA41-3BY3 SIMATIC MP 377
Brand: Siemens
SKU: 6AV6446-7AA41-3BY3
Price: 1995.00 EUR
Availability: InStock

€ 1.995,00

Condition

Clear

SKU: 6AV6446-7AA41-3BY3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-7AA41-3BY3 is a Multi Panel belonging to the SIMATIC MP 377 series, part of Siemens' SIMATIC HMI product line. This unit is a 15-inch touch-screen operator panel designed for demanding industrial visualization and control tasks. It operates within the WinCC flexible runtime environment and is intended for use as a high-performance human-machine interface in automation systems.

The MP 377 15" Touch features a TFT color display with a resolution of 1024 x 768 pixels (XGA) and supports up to 16 million colors, delivering clear and detailed process visualization. It is equipped with multiple communication interfaces including PROFIBUS DP, PROFINET (Ethernet), USB ports, and a serial RS-422/RS-485 interface, enabling integration with a wide range of Siemens and third-party controllers. The panel runs on Microsoft Windows CE 5.0 and provides substantial onboard memory for project storage and runtime data. It supports MPI/PROFIBUS and Ethernet-based communication protocols, and includes a CompactFlash card slot for additional storage expansion.

The SIMATIC MP 377 is widely deployed in manufacturing, process industries, automotive production, and machine building applications where a large, high-resolution display and robust connectivity are required. Its fanless design and wide operating temperature range make it suitable for installation in control cabinets in harsh industrial environments. The panel is commonly used in conjunction with Siemens S7-300 and S7-400 PLCs for supervisory control and process monitoring tasks.

Technical Specifications

Display Size	15 inch
Display Resolution	1024 x 768 pixels (XGA)
Display Colors	16 million colors
Display Type	TFT color LCD
Touch Technology	Resistive touch screen
Input/Operating Voltage	24 V DC
Power Consumption	Max. 60 W
Operating System	Windows CE 5.0
Communication Interface	PROFIBUS DP, PROFINET/Ethernet (RJ45), RS-422/RS-485, USB 2.0
Memory (RAM)	128 MB
Memory (Flash)	256 MB
Storage Expansion	CompactFlash card slot
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
IP Rating (Front)	IP65
Certifications	CE, UL, cULus
Series/Product Family	SIMATIC MP 377

Common Error Codes & System Events

Event ID: 10000: Communication error between HMI panel and PLC. The configured connection to the controller cannot be established or has been lost.
Check physical cable connections on PROFIBUS or Ethernet interface. Verify PLC is powered and running. Confirm correct station address and communication parameters in the WinCC flexible project.
Event ID: 10001: Communication timeout. No response received from the PLC within the configured timeout period.
Check network cabling and connectors. Verify PLC program is running and not in STOP mode. Increase communication timeout value in WinCC flexible connection settings if network latency is high.
Event ID: 20000: Project download error. Transfer of the WinCC flexible project to the panel failed.
Ensure the panel is in Transfer mode. Verify the IP address or PROFIBUS address settings match the project configuration. Check USB or Ethernet cable integrity and retry the download.
Event ID: 40000: Tag read/write error. A configured tag could not be read from or written to the PLC.
Verify the tag address in the WinCC flexible project matches the actual PLC data block or memory address. Confirm the PLC program contains the referenced data areas.
Event ID: 50000: System memory low. Available runtime memory on the panel is critically low.
Reduce the number of active screens or logged data. Clear the alarm buffer and data logs. Consider reducing project complexity or upgrading storage media.
Event ID: 70000: Recipe data error. A recipe could not be read or written correctly.
Check the recipe configuration in WinCC flexible. Verify the target PLC data block exists and has sufficient size. Ensure the CompactFlash card is properly inserted and not write-protected.
Event ID: 110000: Backup/restore error. A project backup or restore operation on the panel failed.
Check that the CompactFlash card has sufficient free space and is not corrupted. Format the card if necessary and retry the backup or restore operation.

Frequently Asked Questions

Which PLCs are compatible with the SIMATIC MP 377?

The MP 377 is compatible with Siemens S7-200, S7-300, S7-400, and WinAC controllers via MPI, PROFIBUS DP, or PROFINET/Ethernet. It can also communicate with third-party controllers via OPC or serial protocols configured in WinCC flexible.

What software is required to create and download projects to the MP 377?

Projects for the MP 377 are created using Siemens WinCC flexible 2008 or later. The project is transferred to the panel via Ethernet, USB, or PROFIBUS using the WinCC flexible transfer function.

Can the MP 377 be used with the TIA Portal?

The MP 377 is not natively supported in TIA Portal (WinCC Advanced/Comfort). It is designed for use with WinCC flexible 2008. Migration to TIA Portal requires a project conversion process and may not support all original functions.

What is the supply voltage for the 6AV6446-7AA41-3BY3?

The panel requires a 24 V DC power supply, typically connected via the rear terminal block. The permissible voltage range is 19.2 V DC to 28.8 V DC.

Does the MP 377 support data logging and alarm archiving?

Yes, the MP 377 supports data logging and alarm archiving to internal flash memory or an external CompactFlash card. Log files can be stored in CSV format and accessed via the panel or transferred to a PC.

Troubleshooting

Display remains blank after power on

Measure 24 V DC supply voltage at the rear power terminal. Check that the voltage is within the 19.2–28.8 V DC range. Inspect the internal fuse if accessible.

Correct the supply voltage if out of range. If voltage is correct but display remains off, the internal power supply board or backlight inverter may be faulty and requires replacement or professional repair.

Touch screen does not respond or registers incorrect touch positions

Check for physical damage or contamination on the touch surface. Verify that the touch calibration has not been corrupted. Access the Control Panel via the Start menu to run touch calibration.

Clean the touch surface with a soft, dry cloth. Recalibrate the touch screen through the Windows CE Control Panel under 'Stylus'. If the issue persists, the resistive touch overlay may need replacement.

Panel fails to establish communication with the PLC

Verify the PROFIBUS or Ethernet cable is securely connected. Check the PLC station address and the address configured in the WinCC flexible project match. Use the panel's diagnostic screen to view connection status.

Correct any address mismatches in the WinCC flexible project and re-download. Replace faulty cables or connectors. Ensure the PLC is in RUN mode and the network is free of termination or topology errors.

Panel repeatedly restarts or crashes during runtime

Check for overheating by verifying ambient temperature is within the 0–50 °C operating range. Inspect the CompactFlash card for errors. Review the Windows CE event log for system fault entries.

Ensure adequate ventilation around the panel. Replace a faulty or corrupted CompactFlash card. If the issue persists, perform a factory reset and re-download the project. A hardware fault on the main board may require professional repair.

Project download fails or transfer is interrupted

Confirm the panel is set to Transfer mode before initiating the download. Check the Ethernet or USB connection between the engineering PC and the panel. Verify firewall settings on the PC are not blocking the WinCC flexible transfer.

Restart the panel in Transfer mode via the Start Center. Disable PC firewall temporarily during transfer. Use a direct Ethernet connection rather than a network switch if possible. Ensure the WinCC flexible version matches the panel firmware version.

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