Siemens 6AV6446-7AA41-0BY3 MP 377

€ 1.995,00

SKU: 6AV6446-7AA41-0BY3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-7AA41-0BY3 is a Multi Panel (MP 377) belonging to the SIMATIC HMI Multi Panel series, designed for high-performance human-machine interface applications in industrial automation environments. This panel is part of Siemens' SIMATIC HMI product line and provides a robust operator interface solution for demanding process visualization and control tasks. The MP 377 series is engineered to meet the requirements of complex machine and plant visualization with a large-format display and extensive connectivity options.

The 6AV6446-7AA41-0BY3 features a 15-inch TFT display with a resolution of 1024 x 768 pixels and 64,000 colors, delivering clear and detailed process visualization. It is equipped with a resistive touch screen as well as a membrane keyboard, providing flexible operator input options. The panel supports multiple communication interfaces including PROFIBUS DP and Ethernet (PROFINET), enabling integration into a wide range of automation network architectures. It runs on the Windows CE operating system and is configured using Siemens WinCC flexible engineering software, supporting project memory via CompactFlash card.

The MP 377 is widely used in the automotive, chemical, food and beverage, and machine tool industries where large-format, high-resolution visualization is required at the machine or panel level. Its combination of touch and key operation makes it suitable for applications where operators require both graphical navigation and dedicated function key access. The panel's robust construction and wide operating temperature range make it appropriate for installation in industrial control cabinets and harsh production environments.

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 touch screen
Input/Operating Voltage	24 V DC
Power Consumption	Max. 60 W
Communication Interface	PROFIBUS DP, Ethernet (PROFINET RJ45), RS-422/RS-485, USB
Operating System	Windows CE 5.0
Project Memory	CompactFlash card
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
Certifications	CE, UL, cULus
Series/Product Family	SIMATIC HMI 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 PROFIBUS or Ethernet cable connections and termination resistors. Verify PLC is powered and running. Confirm correct station address and communication parameters in WinCC flexible project.
Event ID: 10001: Connection to PLC interrupted during runtime. Tags associated with the lost connection will show error values.
Inspect physical network connections. Check PLC program status. Restart communication by cycling power to the HMI or re-establishing the network connection.
Event ID: 20000: Device-specific system error. An internal system fault has been detected on the HMI panel.
Note the full event ID and sub-code displayed. Restart the panel. If the error persists, reload the project via WinCC flexible or contact Siemens technical support.
Event ID: 40000: Project download error. A fault occurred during transfer of the WinCC flexible project to the panel.
Verify the PC and HMI are on the same network subnet. Check that the correct panel type and firmware version are selected in WinCC flexible. Retry the transfer and ensure no firewall is blocking communication.
Event ID: 50000: Firmware update error. The firmware update process was interrupted or failed to complete successfully.
Re-initiate the firmware update using the Siemens ProSave tool. Ensure stable power supply during the update process and do not disconnect the communication cable until the update is confirmed complete.
Event ID: 70000: Memory access error. The panel cannot read from or write to the CompactFlash memory card.
Check that the CompactFlash card is properly seated in the slot. Replace the CompactFlash card if it is corrupted or faulty. Reload the project after replacing the card.
Event ID: 60000: Tag read/write error. A configured tag could not be read from or written to the connected controller.
Verify the tag address in the WinCC flexible project matches the actual PLC data block or memory address. Check PLC program for address conflicts or data type mismatches.

Frequently Asked Questions

What engineering software is required to configure the MP 377 6AV6446-7AA41-0BY3?

This panel is configured using Siemens WinCC flexible 2008 or later. Projects are transferred to the panel via Ethernet, PROFIBUS, or USB connection using the ProSave tool or directly from WinCC flexible.

What communication protocols does the 6AV6446-7AA41-0BY3 support?

The MP 377 supports PROFIBUS DP, PROFINET (Ethernet), RS-422/RS-485 serial communication, and USB. It can communicate directly with Siemens S7-300, S7-400, and other compatible PLCs.

What type of memory storage does this panel use?

The 6AV6446-7AA41-0BY3 uses a CompactFlash card for project and recipe storage. The CompactFlash card is accessible from the rear of the panel and can be replaced or upgraded.

Is the MP 377 compatible with Siemens S7-1200 and S7-1500 PLCs?

The MP 377 can communicate with S7-1200 and S7-1500 PLCs via Ethernet using the appropriate WinCC flexible drivers, though WinCC flexible has limited native support for newer S7-1500 features compared to TIA Portal-based panels.

What is the front panel protection rating of the 6AV6446-7AA41-0BY3?

The front panel of the MP 377 carries an IP65 protection rating, making it suitable for installation in environments where dust and water jets may be present.

Troubleshooting

Display remains blank after power on

Measure the 24 V DC supply voltage at the power connector on the rear of the panel. Check that the voltage is within the specified tolerance. Inspect the internal fuse if accessible.

Ensure the 24 V DC supply is stable and within range. If the supply is correct but the display remains off, the internal power supply board or backlight inverter may be faulty and require replacement.

Touch screen does not respond or responds inaccurately

Attempt to operate the panel using the membrane keyboard to determine if the issue is isolated to the touch screen. Check for physical damage or contamination on the touch surface.

Perform a touch screen recalibration via the panel's Start Center or Control Panel settings. If calibration does not resolve the issue, the resistive touch overlay may need to be replaced.

HMI cannot establish communication with the PLC

Verify the Ethernet or PROFIBUS cable is connected and undamaged. Check the IP address or PROFIBUS station address configured on both the HMI and the PLC. Use a network diagnostic tool to confirm connectivity.

Correct any IP address or station address mismatches in the WinCC flexible project. Replace faulty cables or connectors. Ensure the PLC is in RUN mode and the communication driver is correctly configured.

Panel continuously reboots or freezes during operation

Check for unstable 24 V DC supply voltage, particularly voltage dips during machine operation. Inspect the CompactFlash card for errors by attempting to reload the project.

Stabilize the power supply and add filtering if necessary. Replace the CompactFlash card with a new one and reload the project. If the problem persists, the panel's main board may require repair or replacement.

Project transfer fails from engineering PC to panel

Confirm that the PC and HMI are on the same network or correctly connected via USB. Verify the firmware version on the panel matches the version expected by the WinCC flexible project.

Update the panel firmware using Siemens ProSave to match the project requirements. Disable any PC firewall or antivirus software that may be blocking the transfer port. Retry the download using a direct USB or Ethernet connection.

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