Siemens 6AV6446-6DA41-2BB5 SIMATIC MP 377

Name: Siemens 6AV6446-6DA41-2BB5 SIMATIC MP 377
Brand: Siemens
SKU: 6AV6446-6DA41-2BB5
Price: 1995.00 EUR
Availability: InStock

€ 1.995,00

Condition

Clear

SKU: 6AV6446-6DA41-2BB5 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-6DA41-2BB5 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 machine-level HMI applications.

The MP 377 15" Touch features a resistive touchscreen interface with a display resolution of 1024 x 768 pixels and 64,000 colors. It is equipped with 12 MB user memory for project data and supports multiple communication interfaces including PROFIBUS DP, MPI, and Ethernet (PROFINET), enabling seamless integration into Siemens automation architectures. The panel operates on a 24 V DC supply and is rated IP65 on the front face, making it suitable for installation in control cabinet doors exposed to dust and water spray.

The SIMATIC MP 377 is widely deployed in manufacturing, automotive, food and beverage, and process industries where a large, clear display and reliable communication with PLCs such as the SIMATIC S7-300 and S7-400 are required. Its multi-panel capability allows it to run WinCC flexible runtime alongside other Windows CE applications simultaneously, making it suitable for complex visualization tasks on standalone machines and production lines.

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/Operating Voltage	24 V DC
Power Consumption	Approx. 40 W
User Memory	12 MB
Operating System	Windows CE 6.0
Communication Interface	PROFIBUS DP/MPI, Ethernet (PROFINET), USB
IP/Protection Rating	IP65 (front), IP20 (rear)
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
Relative Humidity	10% to 90%, non-condensing
Mounting	Panel mounting
Certifications	CE, UL, cULus

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/MPI or Ethernet cable connections and termination resistors. Verify the PLC address settings match the HMI project configuration. Ensure the PLC is in RUN mode.
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. Check that the data block or memory area referenced in the HMI project is present and accessible in the controller.
Event ID: 10002: Tag write error. The HMI panel cannot write a value to a configured PLC tag.
Check that the target PLC address is not write-protected. Verify the tag address and data type match between the HMI project and the PLC program.
Event ID: 40000: Project download error. A project transfer to the panel has failed or been interrupted.
Ensure the transfer cable or network connection is stable. Check that WinCC flexible on the engineering PC and the panel runtime version are compatible. Retry the transfer.
Event ID: 20000: System memory low. Available memory for the HMI runtime is critically low.
Reduce the number of simultaneously open screens or logged data. Optimize the project by reducing image sizes and the number of active tags. Consider archiving or deleting old log files from the panel.
Event ID: 50000: Recipe data error. A recipe record could not be read from or written to storage.
Check that the recipe storage medium (internal flash or external memory card) is present and not full. Verify recipe configuration in WinCC flexible for correct data types and addresses.
Event ID: 60000: Alarm logging error. The alarm archive cannot be written, typically due to insufficient storage space.
Clear old alarm archive files from the panel memory. Check available storage space and adjust the maximum archive size in the project settings.

Frequently Asked Questions

What PLC systems is the SIMATIC MP 377 compatible with?

The MP 377 is compatible with Siemens SIMATIC S7-200, S7-300, S7-400, and S7-1200 controllers via PROFIBUS DP, MPI, or Ethernet (PROFINET). It can also communicate with third-party controllers using standard protocols such as Modbus TCP or OPC.

What HMI software is used to program the 6AV6446-6DA41-2BB5?

The MP 377 is configured using Siemens WinCC flexible 2008 or later. Projects are created on an engineering PC and transferred to the panel via Ethernet, USB, or a memory card.

What is the operating voltage of this panel?

The panel operates on a 24 V DC supply voltage. The permissible voltage range is typically 19.2 V DC to 28.8 V DC.

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

Yes, as a Multi Panel the MP 377 runs Windows CE 6.0 and can execute additional Windows CE-compatible applications alongside the WinCC flexible runtime, which is one of its key differentiators from standard operator panels.

What is the front panel protection rating of the 6AV6446-6DA41-2BB5?

The front face of the panel is rated IP65, providing protection against dust ingress and low-pressure water jets, making it suitable for mounting in control cabinet doors in industrial environments.

Troubleshooting

Display remains blank after power is applied

Measure the 24 V DC supply voltage at the panel's power connector. Check that the voltage is within the 19.2–28.8 V DC range. Inspect the power supply wiring and connector for loose contacts.

Correct the supply voltage if out of range. If voltage is correct and the display remains blank, the internal backlight or power supply board may be faulty and the panel should be sent for repair or replacement.

Touchscreen does not respond or responds inaccurately

Check whether the touch input is consistently offset or completely unresponsive. Determine if the issue appeared after a project update or physical impact. Access the Windows CE desktop to test touch response outside of the HMI runtime.

Perform a touchscreen recalibration via the panel's Control Panel settings in Windows CE. If recalibration does not resolve the issue, the resistive touch overlay may be damaged and requires replacement.

HMI cannot establish communication with the PLC

Verify the physical cable connection on the PROFIBUS, MPI, or Ethernet port. Check the bus address and baud rate settings on both the panel and the PLC. Use the panel's diagnostic tools to check connection status.

Correct any address or baud rate mismatches in the WinCC flexible project and re-download. Replace the communication cable if damaged. Ensure PROFIBUS termination resistors are correctly placed at both ends of the bus.

Panel freezes or restarts unexpectedly during operation

Check the supply voltage for ripple or voltage drops under load. Review the alarm and system event logs on the panel for recurring event IDs. Determine if the issue is linked to specific screen changes or high tag update rates.

Stabilize the 24 V DC power supply. Optimize the HMI project by reducing tag update cycles and the number of active alarms. If the problem persists, perform a firmware update or restore the panel to factory settings and re-download the project.

Project transfer to the panel fails repeatedly

Check the Ethernet or USB connection between the engineering PC and the panel. Verify that the panel is in Transfer mode and that no firewall is blocking the WinCC flexible transfer port. Confirm that the WinCC flexible version is compatible with the panel firmware.

Switch the panel to Transfer mode manually via the Start Center. Disable PC firewalls temporarily during transfer. Update the panel firmware to match the WinCC flexible version used on the engineering PC, then retry the project download.

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