Siemens 6AV6446-7AA41-1BY4 SIMATIC MP 377

Name: Siemens 6AV6446-7AA41-1BY4 SIMATIC MP 377
Brand: Siemens
SKU: 6AV6446-7AA41-1BY4
Price: 1995.00 EUR
Availability: InStock

€ 1.995,00

Condition

Clear

SKU: 6AV6446-7AA41-1BY4 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-7AA41-1BY4 is a Multi Panel belonging to the SIMATIC MP 377 series, part of Siemens' SIMATIC HMI product line. This unit features a 15-inch TFT widescreen display and is designed for demanding machine-level visualization and operator control tasks. It runs on the Windows CE 6.0 operating system and is configured using WinCC flexible or TIA Portal with WinCC.

The MP 377 15" Touch features a resistive touchscreen interface and delivers a display resolution of 1024 x 768 pixels with 64,000 colors. It is equipped with 12 MB user memory for project data, a CompactFlash card slot for extended storage, and supports communication via PROFIBUS DP, PROFINET/Ethernet (RJ45), USB, and MPI interfaces. The panel operates on a 24 V DC supply and includes an integrated web browser, PDF viewer, and support for VBScript and JavaScript for advanced scripting.

The SIMATIC MP 377 is widely deployed in manufacturing automation, process control, and machine building applications across industries such as automotive, food and beverage, chemical processing, and packaging. Its large display area and multi-protocol communication capability make it suitable for complex visualization tasks requiring simultaneous display of process data, alarms, and trends on the factory floor.

Technical Specifications

Display Size	15 inch
Display Resolution	1024 x 768 pixels (XGA)
Display Colors	64,000 colors
Display Type	TFT
Touch Technology	Resistive touchscreen
Operating System	Windows CE 6.0
Input/Operating Voltage	24 V DC
Power Consumption	Max. 40 W
User Memory	12 MB
Communication Interface	PROFIBUS DP, MPI, PROFINET/Ethernet (RJ45), USB 2.0
Storage Expansion	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
Certifications	CE, UL, cULus

Common Error Codes & System Events

Event ID: 10000: Connection to PLC could not be established or was interrupted
Check PROFIBUS/PROFINET cable connections and termination resistors. Verify PLC address settings match HMI project configuration. Check PLC is in RUN mode.
Event ID: 10001: Communication timeout to the configured controller
Verify network cable integrity and connector seating. Check IP address or PROFIBUS address configuration on both HMI and PLC. Restart both devices if necessary.
Event ID: 20000: Tag read/write error — the HMI could not read or write a configured tag
Verify the tag address exists in the PLC program. Check data type compatibility between HMI tag and PLC variable. Confirm PLC is not in STOP mode.
Event ID: 40000: Recipe data transfer error
Check that the recipe structure in the HMI project matches the PLC data block. Verify sufficient memory is available on the CompactFlash card.
Event ID: 70000: Alarm logging error — alarm archive could not be written
Check available storage space on the CompactFlash card. Verify the card is properly seated and not write-protected. Replace card if corrupted.
Event ID: 110000: Project loading error — project could not be loaded on startup
Re-transfer the project from the engineering station using WinCC flexible or TIA Portal. Check CompactFlash card integrity and replace if necessary.
Event ID: 130000: System memory low — available runtime memory is critically low
Reduce the number of simultaneously active screens or scripts. Optimize project by reducing image sizes and script complexity. Restart the panel.

Frequently Asked Questions

What software is used to configure the SIMATIC MP 377 15" Touch (6AV6446-7AA41-1BY4)?

The MP 377 can be configured using Siemens WinCC flexible 2008 or later, as well as TIA Portal with WinCC (comfort). WinCC flexible is the primary legacy engineering tool for this panel generation.

What communication interfaces are available on this panel?

The 6AV6446-7AA41-1BY4 provides PROFIBUS DP/MPI, PROFINET/Ethernet via RJ45, and USB 2.0 ports. This allows connection to a wide range of Siemens S7 PLCs and third-party controllers.

What is the supply voltage for the MP 377 15" Touch?

The panel requires a 24 V DC power supply. Ensure the supply is stable and within the specified tolerance range to prevent unexpected resets or display issues.

Can the MP 377 display PDF documents or web pages?

Yes, the MP 377 running Windows CE 6.0 includes an integrated PDF viewer and Internet Explorer-based web browser, enabling display of PDF documents and intranet web pages directly on the panel.

What is the front panel protection rating of this HMI?

The front panel of the MP 377 15" Touch carries an IP65 protection rating, making it suitable for installation in environments with dust and water spray. The rear of the unit is rated IP20.

Troubleshooting

Display remains blank after power on

Measure 24 V DC at the power supply connector on the rear of the panel. Check the internal fuse and verify the power supply unit is delivering stable voltage.

Replace the power supply if voltage is absent or unstable. If voltage is correct but display remains blank, the backlight inverter or TFT display module may require replacement.

Touchscreen does not respond or registers incorrect touch positions

Check for physical damage or contamination on the touch surface. Attempt to recalibrate the touchscreen via the Windows CE Control Panel or the Siemens Start Center.

Perform a touchscreen recalibration. If the issue persists after calibration, the resistive touch overlay may be worn or damaged and should be replaced.

HMI cannot establish communication with the PLC

Verify the PROFIBUS or Ethernet cable is correctly connected and undamaged. Check that the PLC address and network settings in the HMI project match the physical configuration.

Correct any address mismatches in the WinCC flexible project and retransfer. Replace cables if damaged. Ensure PROFIBUS termination resistors are correctly placed at both ends of the bus.

Panel restarts unexpectedly or freezes during operation

Check the 24 V DC supply for voltage dips or ripple using a multimeter or oscilloscope. Review the HMI project for memory-intensive scripts or large image files that may cause runtime overload.

Stabilize the power supply or add a buffer capacitor module. Optimize the project by reducing script complexity and image sizes. Update the panel firmware to the latest version via Siemens support.

Project transfer from PC to panel fails

Verify the USB or Ethernet connection between the engineering PC and the panel. Ensure the panel is in Transfer mode, accessible via the Siemens Start Center on the Windows CE desktop.

Switch the panel to Transfer mode manually via the Start Center. Check firewall settings on the PC that may block WinCC flexible communication. Try an alternative transfer cable or port.

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