Siemens 6AV6446-4AA40-3BY3 SIMATIC MP 377

Name: Siemens 6AV6446-4AA40-3BY3 SIMATIC MP 377
Brand: Siemens
SKU: 6AV6446-4AA40-3BY3
Price: 1995.00 EUR
Availability: InStock

€ 1.995,00

Condition

Clear

SKU: 6AV6446-4AA40-3BY3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-4AA40-3BY3 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 runs the Windows CE operating system and is engineered to operate reliably in harsh industrial environments.

The MP 377 panel features a 12-inch TFT display with a resolution of 800 x 600 pixels (SVGA) and supports 64,000 colors, providing clear and detailed process visualization. It is equipped with a resistive touch screen as well as function keys, offering flexible operator input options. The unit includes communication interfaces such as PROFIBUS DP, MPI, and Ethernet (RJ45), enabling integration into a wide range of automation networks. It supports the SIMATIC WinCC flexible runtime environment and offers substantial onboard memory for project data and logging.

The SIMATIC MP 377 is widely used in manufacturing, process industries, automotive production, and machine building applications where a robust and versatile HMI solution is required. Its combination of touch and key operation, multiple communication interfaces, and compatibility with Siemens S7 PLCs makes it suitable for complex visualization tasks on large machines and production lines. The panel's industrial-grade construction ensures reliable operation in environments with vibration, dust, and temperature variations.

Technical Specifications

Display Size	12 inch
Display Resolution	800 x 600 pixels (SVGA)
Display Colors	64,000 colors
Display Type	TFT LCD
Touch Technology	Resistive touch screen
Input/Operating Voltage	24 V DC
Power Consumption	Max. 30 W
Operating System	Windows CE 5.0
Communication Interface	PROFIBUS DP, MPI, Ethernet (RJ45), USB
Memory	12 MB user memory (project)
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 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 interrupted.
Check PROFIBUS/MPI or Ethernet cabling and termination resistors. Verify PLC address settings match the HMI project configuration. Confirm the PLC is in RUN mode.
Event ID: 10001: Connection to PLC lost during runtime. The HMI panel has detected a timeout on the configured communication channel.
Inspect network cables and connectors for damage. Check bus termination and cable shielding. Restart both the HMI panel and the PLC and monitor for recurrence.
Event ID: 40000: Project download error. The project transfer from the engineering PC to the HMI panel has failed or been interrupted.
Verify the transfer cable or network connection between PC and panel. Ensure WinCC flexible is set to the correct transfer mode and that the panel is in transfer mode. Retry the download.
Event ID: 50000: Tag read/write error. A configured tag could not be read from or written to the connected controller.
Check that the tag address in the HMI project matches the actual PLC data block or memory address. Verify PLC program is running and the relevant data areas are accessible.
Event ID: 70000: Runtime system error. An internal error has occurred in the WinCC flexible runtime environment on the panel.
Restart the HMI panel. If the error persists, reload the project from the engineering PC. Check for corrupted project files and regenerate if necessary.
Event ID: 20000: Alarm logging error. The panel is unable to write alarm or event data to the configured storage medium.
Check available storage space on the internal flash memory or connected memory card. Verify the logging configuration in WinCC flexible and clear old log files if storage is full.
Event ID: 30000: Recipe data error. A recipe record could not be read from or written to the configured storage location.
Verify the recipe configuration in WinCC flexible. Check that the target storage medium (internal memory or memory card) is accessible and has sufficient free space.

Frequently Asked Questions

What communication interfaces are available on the 6AV6446-4AA40-3BY3?

The SIMATIC MP 377 12-inch panel provides PROFIBUS DP/MPI, Ethernet (RJ45), and USB interfaces, allowing connection to Siemens S7 PLCs and integration into standard industrial networks.

Which Siemens PLCs are compatible with this HMI panel?

The MP 377 is compatible with Siemens SIMATIC S7-300, S7-400, and S7-1200/1500 series PLCs via PROFIBUS, MPI, or Ethernet connections when configured using WinCC flexible or TIA Portal.

What software is required to program or configure this panel?

The panel is configured using Siemens SIMATIC WinCC flexible 2008 or later. It can also be integrated into the TIA Portal environment using the appropriate migration tools.

What is the display size and resolution of this panel?

The 6AV6446-4AA40-3BY3 features a 12-inch TFT display with a resolution of 800 x 600 pixels (SVGA) and supports 64,000 colors.

What is the supply voltage for this HMI panel?

The panel operates on a 24 V DC supply voltage, which is standard for SIMATIC HMI panels and compatible with typical industrial control cabinet power supplies.

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 correctly connected. If the supply voltage is correct but the display remains blank, 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 physical function keys to determine if the issue is isolated to the touch screen. Check for physical damage or contamination on the screen surface.

Perform a touch screen recalibration through the panel's Start Center or Control Panel settings. Clean the screen surface with a soft, dry cloth. If calibration does not resolve the issue, the touch screen overlay may need to be replaced.

HMI panel cannot establish communication with the PLC

Verify the communication cable connections at both the panel and PLC ends. Check the bus address settings on the panel match those configured in the WinCC flexible project. Use a bus diagnostic tool to check PROFIBUS or Ethernet network integrity.

Correct any address mismatches in the project configuration. Replace damaged cables or connectors. Ensure proper bus termination is applied at both ends of a PROFIBUS network. Reload the project to the panel after making corrections.

Panel freezes or restarts unexpectedly during operation

Check the 24 V DC supply for voltage dips or instability using a multimeter or oscilloscope. Review the system event log on the panel for recorded fault events prior to the restart.

Stabilize the power supply by adding a buffer capacitor or UPS module. If the supply is stable, the issue may be caused by a corrupted runtime project; reload the project from the engineering PC. Persistent restarts may indicate a hardware fault requiring panel repair or replacement.

Project transfer from PC to panel fails

Confirm the panel is set to Transfer mode via the Start Center. Check the Ethernet or USB cable connection between the PC and panel. Verify firewall settings on the PC are not blocking the WinCC flexible transfer.

Switch the panel to Transfer mode manually if it does not switch automatically. Use a known-good cable and try a different USB port or Ethernet port. Disable PC firewall temporarily to test if it is blocking the transfer, then configure an exception rule for WinCC flexible.

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