Siemens 6AV6446-6CA41-2BY5 SIMATIC MP 377

Name: Siemens 6AV6446-6CA41-2BY5 SIMATIC MP 377
Brand: Siemens
SKU: 6AV6446-6CA41-2BY5
Price: 1995.00 EUR
Availability: InStock

€ 1.995,00

Condition

Clear

SKU: 6AV6446-6CA41-2BY5 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-6CA41-2BY5 is a Multi Panel belonging to the SIMATIC MP 377 series, part of Siemens' SIMATIC HMI product line. This panel is a high-performance operator interface device designed for demanding industrial visualization and control tasks. It features a 15-inch widescreen TFT display and runs on the Windows CE operating system, providing a robust platform for SCADA and HMI applications.

The MP 377 15" Touch panel is equipped with a resistive touchscreen and supports a wide range of communication interfaces including PROFIBUS DP, PROFINET IO, Ethernet (RJ45), USB, and serial interfaces (RS-422/RS-485). It features 12 MB of user memory for project data and is powered by a 400 MHz processor, enabling smooth execution of complex visualization tasks. The unit operates on 24 V DC supply voltage and is rated IP65 on the front panel, making it suitable for use in environments where dust and water ingress protection is required.

The SIMATIC MP 377 is widely deployed in manufacturing, automotive, food and beverage, chemical, and water treatment industries. It is commonly integrated into machine control panels and process control systems where a large, clear display and reliable communication with Siemens S7 PLCs and third-party controllers are essential. Its compatibility with WinCC flexible and TIA Portal engineering software makes it a versatile choice for both new installations and system upgrades.

Technical Specifications

Display Size	15 inch
Display Type	TFT widescreen
Display Resolution	1024 x 768 px (XGA)
Display Colors	64,000 colors
Touch Technology	Resistive touchscreen
Input/Operating Voltage	24 V DC
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
IP Rating (Rear)	IP20
Communication Interfaces	PROFIBUS DP, PROFINET IO, Ethernet (RJ45), USB, RS-422/RS-485
User Memory	12 MB
Processor	400 MHz
Operating System	Windows CE 6.0
Certifications	CE, UL, cULus
Mounting	Panel mounting

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 PROFIBUS or PROFINET cable connections and termination resistors. Verify PLC is in RUN mode and the configured station address matches the hardware configuration.
Event ID: 10001: Tag read error. The HMI panel cannot read a configured tag from the PLC.
Verify the tag address exists in the PLC program and that the data block or memory area is accessible. Check for address mismatches in the HMI project configuration.
Event ID: 10002: Tag write error. The HMI panel cannot write a value to the configured PLC tag.
Confirm the PLC memory area is not write-protected. Check that the tag address and data type in the HMI project match the PLC program definition.
Event ID: 20000: System memory low. Available runtime memory on the HMI panel is critically low.
Close unnecessary applications or runtime components. Consider reducing the complexity of the HMI project or increasing the number of compressed images and objects.
Event ID: 40000: Project download error. A project transfer from the engineering PC to the HMI panel has failed.
Check the transfer cable or network connection. Ensure the panel is in Transfer mode and that the correct IP address or MPI address is configured in WinCC flexible or TIA Portal.
Event ID: 50000: Backup/restore error. A backup or restore operation on the HMI panel has failed.
Verify the storage medium (USB or memory card) is properly inserted and has sufficient free space. Ensure the backup file is not corrupted and is compatible with the panel firmware version.
Event ID: 70000: Firmware update error. The firmware update process on the panel has been interrupted or failed.
Restart the panel and attempt the firmware update again using ProSave or TIA Portal. Ensure the correct firmware version for the 6AV6446-6CA41-2BY5 is used and the power supply is stable during the update process.

Frequently Asked Questions

Which engineering software is compatible with the SIMATIC MP 377 15" Touch?

The MP 377 is compatible with WinCC flexible 2008 and later versions. It can also be integrated into the TIA Portal environment using the WinCC flexible migration tool.

What communication protocols does the 6AV6446-6CA41-2BY5 support?

This panel supports PROFIBUS DP, PROFINET IO, Ethernet TCP/IP, MPI, and serial communication via RS-422/RS-485. It can communicate with Siemens S7-300, S7-400, and S7-1500 PLCs as well as many third-party controllers.

What is the supply voltage for this HMI panel?

The panel requires a 24 V DC power supply. Ensure the supply is within the permissible voltage tolerance range as specified in the Siemens operating instructions.

Is the front of the panel protected against dust and water ingress?

Yes, the front panel of the MP 377 15" Touch achieves IP65 protection rating, making it suitable for installation in environments where dust and water jets may be present.

Can the MP 377 run third-party applications under Windows CE?

Yes, because the panel runs Windows CE 6.0, it is possible to install compatible third-party applications. However, Siemens recommends caution as unauthorized software may affect system stability and is not covered under standard support.

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 and inspect the internal fuse if accessible. Verify the backlight is not simply set to minimum brightness.

Restore correct 24 V DC supply. If voltage is correct and display remains blank, the backlight inverter or the display unit itself may require replacement. A qualified repair technician should inspect the internal components.

Touchscreen does not respond or registers incorrect touch positions

Perform a touchscreen calibration from the panel's Start Center or Control Panel. Check for physical damage, contamination, or excessive pressure on the touchscreen surface.

Recalibrate the touchscreen using the built-in calibration utility. Clean the screen surface with a soft, lint-free cloth. If calibration fails repeatedly, the resistive touch layer may be damaged and the touchscreen assembly should be replaced.

HMI panel cannot establish communication with the PLC

Verify the PROFIBUS or PROFINET cable is correctly connected and terminated. Check that the station address or IP address configured in the HMI project matches the physical hardware settings. Confirm the PLC is powered and in RUN mode.

Correct any address mismatches in the HMI project or PLC hardware configuration. Replace faulty cables or connectors. Ensure PROFIBUS termination resistors are active at both ends of the bus segment.

Panel freezes or restarts unexpectedly during operation

Check the 24 V DC supply for voltage dips or ripple using an oscilloscope or multimeter. Review the system event log in WinCC flexible Runtime for error entries. Inspect the panel for signs of overheating.

Stabilize the power supply and ensure it meets the current requirements of the panel. Improve ventilation around the panel if overheating is suspected. If the issue persists, reload the HMI project or perform a firmware update using ProSave.

Project transfer from PC to panel fails

Confirm the panel is set to Transfer mode via the Start Center. Verify the IP address or MPI address in the transfer settings matches the panel configuration. Check the network cable or USB connection between PC and panel.

Correct the transfer settings in WinCC flexible or TIA Portal. Disable any firewall or antivirus software on the PC that may block the transfer. If using a network connection, ensure both devices are on the same subnet.

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