Siemens 6AV6446-6DA41-2BY5 SIMATIC MP 377

Name: Siemens 6AV6446-6DA41-2BY5 SIMATIC MP 377
Brand: Siemens
SKU: 6AV6446-6DA41-2BY5
Price: 1995.00 EUR
Availability: InStock

€ 1.995,00

Condition

Clear

SKU: 6AV6446-6DA41-2BY5 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-6DA41-2BY5 is a Multi Panel (MP 377) belonging to the SIMATIC HMI family, designed for demanding visualization and operator control tasks in industrial automation environments. This panel features a 15-inch TFT display and is part of the MP 377 series, which represents Siemens' high-performance multi-panel line capable of running both WinCC flexible and, in some configurations, standard PC-based applications. It is a panel PC-class device intended for use as a stationary operator interface in machine and plant automation.

The MP 377 15" Touch (6AV6446-6DA41-2BY5) is equipped with a resistive touchscreen and delivers a display resolution of 1024 x 768 pixels (XGA) with 64,000 colors. It operates on a 24 V DC supply and communicates via PROFIBUS DP and Ethernet (TCP/IP) interfaces, enabling integration into a wide range of Siemens and third-party control architectures. The panel includes USB ports for peripherals and data transfer, a CompactFlash card slot for project storage and data logging, and is configured with sufficient onboard memory for complex HMI projects. The robust aluminum front panel provides IP65 protection on the front face, making it suitable for installation in control cabinet doors.

The SIMATIC MP 377 is widely deployed in the manufacturing, automotive, food and beverage, chemical, and water treatment industries, where a large-format, high-resolution operator panel is required for process visualization, recipe management, alarm handling, and trend display. Its compatibility with Siemens SIMATIC S7 PLCs and WinCC flexible engineering software makes it a standard choice for system integrators building complex HMI solutions. The panel's robust construction and wide operating temperature range allow reliable operation in industrial environments with vibration, dust, and varying ambient conditions.

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
Input Voltage	24 V DC
Power Consumption	Approx. 60 W
Communication Interface	PROFIBUS DP, Ethernet (RJ45, TCP/IP), USB
Storage Media	CompactFlash card slot
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
Mounting	Panel mounting (portrait or landscape)
Certifications	CE, UL, cULus
Series	SIMATIC MP 377

Common Error Codes & System Events

Event ID: 10000: System startup event — the HMI runtime has started successfully.
Informational only. No action required. If startup repeatedly fails, check project integrity and CompactFlash card.
Event ID: 40000: Connection to PLC lost — communication between the HMI panel and the configured PLC has been interrupted.
Check PROFIBUS or Ethernet cabling and connector integrity. Verify PLC is powered and running. Check configured IP address or PROFIBUS address in the HMI project.
Event ID: 40001: Tag read error — the HMI was unable to read a configured tag from the PLC.
Verify the tag address exists in the PLC program. Check communication connection status. Ensure PLC data block or memory area is accessible.
Event ID: 110000: Project download error — a project transfer to the panel was interrupted or failed.
Check the transfer cable or network connection. Ensure the panel is in transfer mode. Verify sufficient free memory on the CompactFlash card.
Event ID: 120000: Recipe data error — an error occurred during reading or writing of recipe records.
Check recipe configuration in WinCC flexible. Verify storage medium (CompactFlash) is present and not write-protected. Re-download the project if recipe structure has changed.
Event ID: 130000: Data log full — the configured data log has reached its maximum capacity.
Archive or clear existing data log files. Adjust the data log configuration in WinCC flexible to enable circular logging or increase storage allocation.
Event ID: 20000: Operating system error — an internal OS-level fault has occurred on the panel.
Perform a warm restart of the panel. If the fault persists, perform a factory reset and re-download the HMI project. Check for firmware compatibility with the project version.
Event ID: 50000: Printer error — the panel was unable to communicate with or print to the configured printer.
Check USB printer connection. Verify the correct printer driver is installed in the panel OS. Confirm printer is powered and online.

Frequently Asked Questions

What PLC systems is the 6AV6446-6DA41-2BY5 compatible with?

The MP 377 is primarily designed for use with Siemens SIMATIC S7-300 and S7-400 PLCs via PROFIBUS DP or Ethernet. It can also communicate with S7-1200 and S7-1500 controllers via Ethernet, as well as third-party PLCs supported by WinCC flexible drivers.

What engineering software is required to program this panel?

This panel is configured using Siemens WinCC flexible 2008 or later. Projects are created on a PC and transferred to the panel via Ethernet, USB, or CompactFlash card.

What is the supply voltage for the 6AV6446-6DA41-2BY5?

The panel requires a 24 V DC power supply. It is recommended to use a regulated SELV power supply meeting IEC 60364-4-41 requirements.

Can the CompactFlash card be replaced or upgraded?

Yes, the CompactFlash card is user-replaceable. It is used for project storage, data logging, and recipe storage. Siemens recommends using only approved industrial-grade CompactFlash cards.

What is the front panel protection rating of this HMI?

The front face of the MP 377 achieves IP65 protection when correctly installed with the supplied gasket in a panel cutout, making it resistant to dust ingress and water jets.

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. Verify the power supply can deliver sufficient current.

Ensure the 24 V DC supply is stable and within tolerance. Replace the power supply if voltage is absent or unstable. If supply is correct and display remains blank, the backlight inverter or display assembly may require replacement.

Touchscreen does not respond or responds inaccurately

Check whether the touch input is consistently offset or completely unresponsive. Determine if the issue is present across the entire screen or only in specific zones.

Perform a touchscreen recalibration via the panel's Start Center or Control Panel. Clean the screen surface with a soft cloth. If recalibration does not resolve the issue, the resistive touch overlay may be damaged and require replacement.

HMI cannot establish communication with the PLC

Verify the Ethernet or PROFIBUS cable is securely connected. Check the configured PLC address in the HMI project matches the actual PLC address. Use the panel's diagnostic tools to ping the PLC IP address.

Correct any IP address or PROFIBUS address mismatches in the WinCC flexible project and re-download. Replace faulty cables or connectors. Ensure the PLC communication module is operational.

Panel fails to boot and displays a continuous restart loop

This may indicate a corrupted HMI project or a faulty CompactFlash card. Attempt to boot without the CompactFlash card inserted to reach the Start Center.

Re-download a valid HMI project via Ethernet or USB. If the CompactFlash card is faulty, replace it with a compatible industrial-grade card and reload the project and panel firmware.

Project transfer fails during download from WinCC flexible

Check the transfer connection type (Ethernet or USB). Verify the panel is set to transfer mode via the Start Center. Confirm the PC firewall is not blocking the transfer port.

Disable PC firewall temporarily during transfer or add a firewall exception for WinCC flexible. Ensure the correct panel IP address is configured in the transfer settings. Try an alternative transfer medium such as a CompactFlash card programmed directly from the PC.

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