Siemens 6AV6446-2AA45-1BY3 SIMATIC MP 377

Name: Siemens 6AV6446-2AA45-1BY3 SIMATIC MP 377
Brand: Siemens
SKU: 6AV6446-2AA45-1BY3
Price: 5429.00 EUR
Availability: InStock

€ 5.429,00

Condition

Clear

SKU: 6AV6446-2AA45-1BY3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-2AA45-1BY3 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 on the Windows CE operating system and is engineered to integrate seamlessly with Siemens SIMATIC automation systems.

The MP 377 panel features a 15-inch TFT widescreen display with a resolution of 1024 x 768 pixels and 64,000 colors, providing clear and detailed process visualization. It is equipped with a resistive touch screen and an integrated membrane keyboard for flexible operator input. The unit supports multiple communication interfaces including PROFIBUS DP, PROFINET IO (Ethernet), and MPI, enabling broad connectivity within automation networks. It offers substantial onboard memory for project data and supports USB ports for peripheral device connection and data transfer.

The SIMATIC MP 377 is widely used in industries such as automotive manufacturing, food and beverage processing, chemical plants, and machine building. Its robust construction and wide operating temperature range make it suitable for installation in industrial control cabinets and harsh production environments. The panel's compatibility with Siemens WinCC flexible engineering software allows for efficient project development and system integration.

Technical Specifications

Display Size	15 inch
Display Resolution	1024 x 768 pixels (XGA)
Display Colors	64,000 colors
Display Type	TFT
Touch Technology	Resistive touch screen
Input/Operating Voltage	24 V DC
Power Consumption	Max. 60 W
Communication Interface	PROFIBUS DP, MPI, PROFINET IO (Ethernet 10/100 Mbit/s), USB
Operating System	Windows CE 6.0
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
Relative Humidity	10% to 90% (non-condensing)
IP/Protection Rating	IP65 (front), IP20 (rear)
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 device has successfully booted and the runtime environment is initialized.
No action required. This is an informational event confirming normal startup.
Event ID: 1000002: Connection to the PLC has been lost. Communication between the HMI panel and the configured controller is interrupted.
Check PROFIBUS/MPI/PROFINET cabling and connectors. Verify PLC is powered and running. Check network address configuration in WinCC flexible project.
Event ID: 1000003: Connection to the PLC has been re-established after a previous communication failure.
No action required. Monitor for recurring disconnections which may indicate an intermittent cable or network fault.
Event ID: 1000022: Tag read error. The HMI runtime was unable to read a configured tag value from the PLC.
Verify the tag address exists in the PLC program and that the data block or memory area is accessible. Check for PLC program changes that may have altered the address.
Event ID: 1000023: Tag write error. The HMI runtime was unable to write a value to the configured PLC tag.
Check that the target PLC address is writable and not write-protected. Verify communication connection is active and the address mapping is correct.
Event ID: 1000070: Project loading error. The HMI runtime encountered an error while loading the project file from memory.
Re-transfer the project from the WinCC flexible engineering station. Check available flash memory on the device and ensure the project was compiled without errors.
Event ID: 1000080: Screen object update error. One or more display objects on the active screen could not be refreshed with current data.
Check the associated tag connections for the affected screen objects. Verify PLC communication is active and the tags are correctly configured.
Event ID: 1000201: Backup battery low or missing. The internal backup battery voltage has dropped below the minimum threshold.
Replace the internal backup battery (CR2032 or equivalent as specified in the device manual) to prevent loss of time/date and retentive data on power failure.

Frequently Asked Questions

What engineering software is required to program the SIMATIC MP 377?

The MP 377 is configured using Siemens WinCC flexible 2008 or later. Projects can also be migrated and used with TIA Portal WinCC (depending on version compatibility).

What communication protocols does the 6AV6446-2AA45-1BY3 support?

This panel supports MPI, PROFIBUS DP, and PROFINET IO (Ethernet 10/100 Mbit/s). USB ports are also available for peripheral devices and project transfer.

What is the supply voltage for the MP 377 panel?

The MP 377 operates on 24 V DC. Ensure the power supply is adequately rated for the panel's maximum consumption of approximately 60 W.

Is the MP 377 compatible with SIMATIC S7-300 and S7-400 PLCs?

Yes, the MP 377 is fully compatible with SIMATIC S7-300 and S7-400 controllers via MPI, PROFIBUS DP, or PROFINET IO, and can also communicate with S7-1200 and S7-1500 via Ethernet.

What is the front panel protection rating of the 6AV6446-2AA45-1BY3?

The front of the panel is rated IP65, making it protected against dust ingress and low-pressure water jets, suitable for panel door mounting in industrial environments.

Troubleshooting

Display remains blank after power is applied

Check the 24 V DC supply voltage at the power connector. Measure input voltage to confirm it is within the specified range. Inspect the internal fuse if accessible.

Ensure the power supply output is stable at 24 V DC and capable of supplying sufficient current. If voltage is correct and display remains off, the internal power supply board or backlight inverter may require replacement.

Touchscreen does not respond or responds inaccurately to input

Determine whether the issue is a complete lack of response or positional inaccuracy. A miscalibrated touch screen will respond but at incorrect coordinates.

Perform a touchscreen recalibration via the Windows CE Control Panel or the Siemens HMI Start Center. If the touch screen is completely unresponsive, inspect the touch controller connection internally or consider replacing the touch screen overlay.

HMI cannot establish communication with the PLC

Check the physical cable connections on the PROFIBUS, MPI, or Ethernet port. Verify the bus address and baud rate settings on both the HMI and PLC match the project configuration.

Correct any address or baud rate mismatches in the WinCC flexible project settings. Replace or reseat the communication cable. If using PROFIBUS, verify termination resistors are correctly placed at both ends of the bus.

Project transfer from engineering PC fails

Verify the transfer channel settings in WinCC flexible match the physical connection being used (USB, Ethernet, or PROFIBUS). Check that the HMI is in Transfer mode.

Switch the HMI to Transfer mode via the Start Center. Ensure firewall or antivirus software on the PC is not blocking the transfer. Try an alternative transfer medium such as a USB memory stick if network transfer fails.

Date and time reset to default after power cycle

This typically indicates that the internal backup battery is depleted or missing, as the real-time clock relies on battery backup to retain time during power-off periods.

Replace the internal backup battery with the correct type as specified in the Siemens MP 377 operating instructions. After replacement, reset the date and time via the Windows CE Control Panel.

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