Siemens 6AV6446-6CA40-2BY5 SIMATIC MP 377

Name: Siemens 6AV6446-6CA40-2BY5 SIMATIC MP 377
Brand: Siemens
SKU: 6AV6446-6CA40-2BY5
Price: 2495.00 EUR
Availability: InStock

€ 2.495,00

Condition

Clear

SKU: 6AV6446-6CA40-2BY5 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-6CA40-2BY5 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 visualization and operator control tasks in industrial automation environments. It runs on the Windows CE operating system and is configured and programmed using Siemens WinCC flexible or TIA Portal software.

The MP 377 15" Touch features a high-resolution 1024 x 768 (XGA) TFT display with 64,000 colors and a resistive touchscreen interface. It is equipped with multiple communication interfaces including PROFIBUS DP, PROFINET (Ethernet), USB, and a serial RS-422/RS-485 interface, enabling integration with a wide range of Siemens and third-party controllers. The panel includes 12 MB user memory for project data and supports MPI/PROFIBUS communication at up to 12 Mbit/s, as well as 10/100 Mbit/s Ethernet connectivity.

The SIMATIC MP 377 is widely deployed in machine-level and plant-level visualization applications across industries such as automotive manufacturing, food and beverage processing, chemical and pharmaceutical production, and general factory automation. Its robust industrial design, wide operating temperature range, and compliance with relevant industrial standards make it suitable for installation in control cabinets and operator panels in harsh 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 touchscreen
Operating System	Windows CE 6.0
User Memory	12 MB
Input/Operating Voltage	24 V DC
Power Consumption	Approx. 40 W
Communication Interface	PROFIBUS DP, PROFINET (Ethernet 10/100 Mbit/s), USB, RS-422/RS-485, MPI
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: 10000: Communication error between HMI panel and PLC. The configured connection to the controller cannot be established or has been lost.
Check PROFIBUS or Ethernet cabling and connectors. Verify PLC is powered and running. Confirm correct communication parameters (address, baud rate) in the WinCC flexible project.
Event ID: 10001: Tag read error. The HMI panel cannot read a configured tag from the connected controller.
Verify the tag address exists in the PLC program. Check that the data block or memory area referenced is not write-protected or out of range.
Event ID: 10002: Tag write error. The HMI panel cannot write a value to a configured tag in the controller.
Confirm the target tag address is writable and within valid range. Check PLC program for write protection on the relevant data area.
Event ID: 40010: Project download error. A project transfer to the panel was interrupted or failed.
Check the transfer cable or network connection. Ensure WinCC flexible or TIA Portal version is compatible with the panel firmware. Restart the transfer process.
Event ID: 70010: System memory low. Available runtime memory on the panel is critically low.
Reduce the number of open screens or active scripts. Optimize the project to reduce memory usage. Consider restarting the panel to free memory.
Event ID: 50000: Firmware update error. The panel firmware update process was interrupted or failed to complete.
Restart the panel and attempt the firmware update again using the correct firmware file for the MP 377. Ensure stable power supply during the update process.
Event ID: 20000: Recipe data error. A recipe record could not be read from or written to the configured storage location.
Check that the storage medium (internal memory or external USB/CF card) is present and not full. Verify recipe configuration in the project.

Frequently Asked Questions

What communication interfaces are available on the 6AV6446-6CA40-2BY5?

The MP 377 15" Touch provides PROFIBUS DP, MPI, PROFINET (Ethernet 10/100 Mbit/s), RS-422/RS-485 serial, and USB interfaces, allowing connection to a wide range of Siemens S7 PLCs and third-party controllers.

Which software is used to program and configure this HMI panel?

The panel is configured using Siemens WinCC flexible 2008 or later, and is also supported under the TIA Portal with WinCC. Projects are transferred to the panel via Ethernet or USB.

What is the supply voltage for the SIMATIC MP 377?

The panel operates on a 24 V DC supply voltage. Ensure a stable, regulated 24 V DC power source is used to avoid panel faults or unexpected restarts.

Is the front of the panel protected against dust and water ingress?

Yes, the front panel carries an IP65 protection rating, making it suitable for installation in environments where dust and water jets may be present. The rear of the unit is rated IP20.

Can this panel communicate directly with Siemens S7-300 and S7-400 PLCs?

Yes, the MP 377 supports MPI and PROFIBUS DP communication, which are the native interfaces for S7-300 and S7-400 PLCs. PROFINET connectivity also allows communication over Ethernet with compatible controllers.

Troubleshooting

Display remains blank after power on

Check that 24 V DC is present at the power supply terminals. Measure voltage at the panel connector. Inspect the internal fuse if accessible.

Restore correct 24 V DC supply. If voltage is present but display remains off, the backlight or internal power board may be faulty and the unit should be sent for repair or the backlight replaced.

Touchscreen does not respond or responds inaccurately

Determine whether the issue is a complete lack of response or positional inaccuracy. A miscalibrated touchscreen will register touches at incorrect positions.

Perform a touchscreen recalibration via the panel's Start Center or Control Panel settings. If the touchscreen is completely unresponsive, inspect the touch controller connection internally or replace the touch overlay.

Panel cannot establish communication with the PLC

Check physical cabling on PROFIBUS or Ethernet ports. Verify the panel's configured station address matches the PLC project. Use diagnostic tools in WinCC flexible to check connection status.

Correct any cabling faults or address mismatches. Ensure the PLC is in RUN mode. If using PROFIBUS, verify termination resistors are correctly placed at both ends of the bus segment.

Panel repeatedly restarts or crashes during operation

Check for unstable 24 V DC supply voltage. Review the panel's event log for recurring system event codes. Assess whether the issue occurs on a specific screen or action in the project.

Stabilize the power supply and ensure adequate current capacity. Optimize the HMI project to reduce processor load. If the issue persists, perform a factory reset and reload the project, or investigate hardware faults on the main board.

Project transfer from PC to panel fails

Verify the transfer connection (USB or Ethernet) is active. Confirm the panel is in Transfer mode. Check that the WinCC flexible version matches the panel firmware version.

Switch the panel to Transfer mode via the Start Center. Use a direct Ethernet or USB connection rather than a network switch if possible. Update panel firmware if there is a version mismatch between the engineering software and the panel.

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