Siemens 6AV6446-2AA45-2BY3 SIMATIC MP 377

Name: Siemens 6AV6446-2AA45-2BY3 SIMATIC MP 377
Brand: Siemens
SKU: 6AV6446-2AA45-2BY3
Price: 2495.00 EUR
Availability: InStock

€ 2.495,00

Condition

Clear

SKU: 6AV6446-2AA45-2BY3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-2AA45-2BY3 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 display and is designed for demanding machine-level and process visualization tasks. It operates under the WinCC flexible runtime environment and is built for use as a high-performance operator panel in industrial automation systems.

The MP 377 15" Touch features a 1024 x 768 pixel XGA resolution TFT display with 64,000 colors and resistive touch screen technology. It is powered by a 400 MHz processor and includes 64 MB RAM along with 64 MB flash memory for project and runtime data storage. Communication interfaces include PROFIBUS DP, PROFINET (Ethernet), USB ports, and a CompactFlash card slot for extended storage. The panel supports MPI/PROFIBUS DP and Industrial Ethernet connectivity, enabling integration with SIMATIC S7 PLCs and third-party controllers via configurable drivers.

The SIMATIC MP 377 is widely deployed in machine building, automotive manufacturing, food and beverage processing, and chemical plant environments. Its large touch display and robust communication capabilities make it suitable for complex HMI applications requiring detailed process visualization, alarm management, and recipe handling. The panel's fanless design and wide operating temperature range support reliable continuous operation in industrial production environments.

Technical Specifications

Display Size	15 inch
Display Resolution	1024 x 768 px (XGA)
Display Colors	64,000 colors
Display Type	TFT LCD
Touch Technology	Resistive touch screen
Processor	400 MHz
RAM	64 MB
Flash Memory	64 MB
Input/Operating Voltage	24 V DC
Power Consumption	Approx. 60 W
Communication Interface	PROFIBUS DP, PROFINET (Ethernet RJ45), 2x USB, MPI
Memory Card Slot	CompactFlash (CF)
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: 1000000: System startup completed. The HMI runtime has successfully initialized and is operational.
No action required. This is an informational system event logged at startup.
Event ID: 1000002: Runtime project loading failed. The configured project could not be loaded from flash or CF card.
Verify the project file integrity in WinCC flexible. Re-transfer the project to the panel via Ethernet or USB.
Event ID: 1000070: Connection to PLC lost. The communication link to the configured SIMATIC S7 controller has been interrupted.
Check PROFIBUS or Ethernet cabling and connector integrity. Verify PLC is powered and communication parameters (address, baud rate) match on both devices.
Event ID: 1000071: Connection to PLC established. Communication with the controller has been restored after a previous interruption.
No action required. Monitor for recurring disconnections which may indicate an unstable network or hardware fault.
Event ID: 1000230: Illegal system activity detected. An internal software exception or illegal operation has occurred in the runtime.
Restart the HMI panel. If the fault persists, re-transfer the project and update the runtime firmware to the latest compatible version.
Event ID: 1000350: Data record transfer error. A recipe or data record could not be read from or written to the configured storage location.
Check the CompactFlash card for errors or replace it. Verify recipe configuration and storage path settings in WinCC flexible.
Event ID: 1000440: Screen saver active. The display backlight has been dimmed or switched off due to inactivity timeout.
Touch the screen or press any key to deactivate the screen saver. Adjust the screen saver timeout in the panel settings if required.
Event ID: 1000500: Alarm buffer overflow. The number of pending alarms has exceeded the configured alarm buffer capacity.
Acknowledge and clear existing alarms. Increase the alarm buffer size in the WinCC flexible project configuration if overflow recurs frequently.

Frequently Asked Questions

What PLC systems are compatible with the SIMATIC MP 377?

The MP 377 supports communication with SIMATIC S7-200, S7-300, S7-400, and S7-1200 PLCs via MPI, PROFIBUS DP, or PROFINET. Third-party controllers can also be connected using available communication drivers in WinCC flexible.

What software is used to configure and program the MP 377?

The MP 377 is configured using Siemens WinCC flexible 2008 or later. Projects are transferred to the panel via Ethernet, USB, or CompactFlash card.

Does the 6AV6446-2AA45-2BY3 support PROFINET communication?

Yes, this panel includes an integrated PROFINET (Industrial Ethernet) interface via an RJ45 connector, supporting 10/100 Mbit/s communication.

What is the operating voltage for the MP 377?

The panel requires a 24 V DC supply voltage. Ensure the power supply is capable of providing sufficient current, typically from a regulated 24 V DC industrial power supply.

Can the MP 377 be used in outdoor or harsh environments?

The front panel is rated IP65, providing protection against dust and water jets, making it suitable for panel-mounted installations in industrial environments. The rear of the unit is rated IP20 and must be protected from moisture and contamination.

Troubleshooting

Display remains blank after power on

Check the 24 V DC supply voltage at the power connector. Verify the supply polarity is correct and the voltage is within the specified range. Inspect internal fuses if accessible.

Restore correct 24 V DC supply. If the backlight has failed, the panel may require backlight or display replacement. If the unit shows no signs of life, check the power supply unit output under load.

Touchscreen does not respond or registers incorrect touch positions

The resistive touch screen may be miscalibrated or the touch surface may be damaged. Check for physical damage, contamination, or a worn touch overlay.

Recalibrate the touch screen via the panel's Start Center or Control Panel settings. Clean the touch surface with a soft cloth. If calibration does not resolve the issue, the touch screen overlay may need replacement.

Communication with PLC is lost intermittently

Check the PROFIBUS or Ethernet cable connections at both the panel and PLC ends. Verify bus termination resistors are correctly installed on PROFIBUS networks. Check for electromagnetic interference sources near the cabling.

Replace damaged cables and ensure connectors are firmly seated. Verify PROFIBUS termination at both ends of the bus segment. Shield cables correctly and route communication cables away from power cables.

Project transfer fails via Ethernet

Verify the IP address configuration on both the PC and the MP 377 panel. Ensure both devices are on the same subnet and that no firewall is blocking the WinCC flexible transfer port.

Set compatible IP addresses on the panel via the Start Center network settings. Disable PC firewall temporarily during transfer or add a firewall exception for WinCC flexible. Retry the project download.

Panel repeatedly restarts or crashes during runtime

This may indicate a corrupted project file, insufficient memory, or a firmware incompatibility. Check the system event log for specific Event IDs recorded before the restart.

Re-transfer a freshly compiled project from WinCC flexible. Ensure the runtime firmware version on the panel matches the WinCC flexible version used for the project. If the issue persists, perform a factory reset via the Start Center and re-transfer the project.

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