Siemens 6AV6446-7BA41-1BY4 SIMATIC MP 377

Name: Siemens 6AV6446-7BA41-1BY4 SIMATIC MP 377
Brand: Siemens
SKU: 6AV6446-7BA41-1BY4
Price: 1995.00 EUR
Availability: InStock

€ 1.995,00

Condition

Clear

SKU: 6AV6446-7BA41-1BY4 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-7BA41-1BY4 is a Multi Panel belonging to the SIMATIC MP 377 series, part of Siemens' SIMATIC HMI product family. This unit features a 15-inch TFT display and is designed for demanding machine-level and plant-level visualization tasks. It operates under the WinCC flexible runtime environment and is intended 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 equipped with a 1 GHz processor and 128 MB RAM along with 128 MB flash memory for application storage. Communication interfaces include PROFINET (2x RJ45), MPI/PROFIBUS DP (RS-422/RS-485), USB ports, and an Ethernet interface, enabling integration into a wide range of automation network architectures. The panel runs Microsoft Windows CE 6.0 and supports WinCC flexible 2008 or later for project engineering.

The SIMATIC MP 377 is widely deployed in the automotive, food and beverage, pharmaceutical, and machine building industries where a robust and versatile HMI solution is required. Its large display size and multi-protocol communication capability make it suitable for complex SCADA-level visualization at the machine or cell level. The panel's fanless design and wide operating temperature range allow reliable operation in harsh industrial environments.

Technical Specifications

Display Size	15 inch
Display Resolution	1024 x 768 px (XGA)
Display Colors	64,000 colors
Display Type	TFT
Touch Technology	Resistive touch screen
Processor	1 GHz
RAM	128 MB
Flash Memory	128 MB
Operating System	Windows CE 6.0
Input/Operating Voltage	24 V DC
Power Consumption	Approx. 40 W
Communication Interface	PROFINET (2x RJ45), MPI/PROFIBUS DP (RS-422/RS-485), 4x USB, Ethernet
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
IP Rating (Front)	IP65
IP Rating (Rear)	IP20
Certifications	CE, UL, cULus
Mounting	Panel mounting
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 PROFINET or MPI/PROFIBUS DP cabling and connector integrity. Verify PLC is powered and running. Confirm network address settings in WinCC flexible project match the physical configuration.
Event ID: 10001: Connection to PLC interrupted during runtime. Tags associated with the lost connection will show error values.
Inspect network cables and switch/hub connections. Verify PLC program is in RUN mode. Re-establish communication and reload the HMI project if necessary.
Event ID: 20000: Project download error. The project transfer from the engineering PC to the HMI panel failed.
Ensure the panel is in Transfer mode. Verify the IP address or MPI address settings match between the engineering PC and the panel. Check USB or Ethernet cable connection used for transfer.
Event ID: 40000: System memory low. Available RAM on the HMI panel is insufficient to run the current project.
Reduce the size of the WinCC flexible project by optimizing graphics and scripts. Close unnecessary runtime applications. Consider archiving historical data to an external storage device.
Event ID: 50000: Internal device error or hardware fault detected on the panel.
Perform a panel restart. If the fault persists, back up the project, perform a factory reset via the Control Panel, and reload the project. Contact Siemens support if the error recurs.
Event ID: 70000: Backup/restore error. A project backup or restore operation to/from an external storage device has failed.
Check that the USB storage device is properly formatted (FAT32) and has sufficient free space. Retry the backup or restore operation. Replace the USB device if errors persist.
Event ID: 110000: Script runtime error. A VBScript or function within the HMI project has encountered an execution error.
Review the script logic in WinCC flexible for syntax or logic errors. Check that all referenced tags and objects exist in the project. Correct the script and re-download the project to the panel.

Frequently Asked Questions

What software is required to program the SIMATIC MP 377?

The MP 377 is engineered using Siemens WinCC flexible 2008 or later versions. The project is created on a PC and transferred to the panel via Ethernet, USB, or MPI/PROFIBUS DP connection.

What communication protocols does the 6AV6446-7BA41-1BY4 support?

The panel supports PROFINET, MPI, PROFIBUS DP, and standard Ethernet (TCP/IP). It also provides four USB ports for peripheral devices and data transfer.

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

Yes, the MP 377 can communicate directly with SIMATIC S7-300 and S7-400 controllers via MPI or PROFIBUS DP, and with S7-300/400/1200/1500 via PROFINET Ethernet.

What is the supply voltage for the 6AV6446-7BA41-1BY4?

The panel requires a 24 V DC power supply. Ensure the power source is capable of supplying the required current, approximately 40 W total power consumption.

Can the MP 377 operate in a portrait orientation?

The MP 377 15-inch panel is designed for landscape orientation. Screen rotation to portrait mode is not a standard supported feature of this panel variant.

Troubleshooting

Display remains blank after power on

Measure 24 V DC at the power supply connector on the rear of the panel. Check that the supply 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 backlight has failed, the panel may require backlight or display assembly replacement. If no power is detected at the connector, inspect the supply wiring and power source.

Touch screen does not respond or is inaccurate

Attempt to operate the panel using an external USB mouse 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 via the Windows CE Control Panel under 'Stylus' settings. Clean the screen surface with a soft, dry cloth. If calibration does not resolve the issue, the touch screen overlay may require replacement.

Panel fails to establish communication with the PLC

Verify the PROFINET IP address or MPI/PROFIBUS DP address configured in the WinCC flexible project matches the physical network settings. Use a PC to ping the panel IP address to confirm network connectivity.

Correct any address mismatches in the WinCC flexible project and re-download. Inspect and replace damaged network cables or connectors. Confirm the PLC is in RUN mode and the network switch or hub is functioning correctly.

Project transfer from engineering PC fails

Confirm the panel is set to Transfer mode (accessible via the Start Center on the panel). Verify the transfer channel settings (Ethernet IP address or USB) match between the engineering PC and the panel.

Switch the panel to Transfer mode manually via the Start Center. Correct the transfer settings in WinCC flexible under 'Transfer'. If using Ethernet, ensure no firewall is blocking the transfer port. Retry the download after confirming settings.

Panel restarts unexpectedly or freezes during operation

Check the 24 V DC supply for voltage dips or instability using a multimeter or oscilloscope. Review the WinCC flexible project for memory-intensive scripts or large graphic objects that may overload the panel CPU.

Stabilize the power supply and ensure it is adequately rated for the panel load. Optimize the HMI project by reducing script complexity and graphic file sizes. If the issue persists, perform a firmware update or factory reset and reload the project.

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