Siemens 6AV6446-3BA40-1BY4 SIMATIC MP 370

Name: Siemens 6AV6446-3BA40-1BY4 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-3BA40-1BY4
Price: 2995.00 EUR
Availability: InStock

€ 2.995,00

Condition

Clear

SKU: 6AV6446-3BA40-1BY4 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-3BA40-1BY4 is a Multi Panel (MP 370) belonging to the SIMATIC HMI family, designed for demanding machine-level and process visualization tasks. This unit features a 15-inch TFT display and is part of the MP 370 series, which represents a high-performance panel PC class within Siemens' SIMATIC HMI portfolio. It is intended for use as a stationary operator panel in industrial environments requiring robust graphical visualization and process control.

The MP 370 Touch (15") is equipped with a resistive touchscreen interface and delivers a display resolution of 1024 x 768 pixels (XGA) with 256 colors. It operates on a 24 V DC supply and communicates via MPI, PROFIBUS DP, and Ethernet (TCP/IP) interfaces, enabling integration into a wide range of Siemens and third-party control architectures. The panel runs WinCC flexible runtime software and supports project transfer via Ethernet, MPI, or memory card. Onboard flash memory and an optional CompactFlash slot provide flexible data storage options.

The SIMATIC MP 370 is widely deployed in the automotive, food and beverage, chemical, and mechanical engineering industries where large-format, touch-operated HMI panels are required. Its compatibility with SIMATIC S7-300 and S7-400 PLCs, as well as support for PROFIBUS DP communication, makes it suitable for complex automation systems with high visualization demands. The robust industrial housing and wide operating temperature range ensure reliable operation in harsh production environments.

Technical Specifications

Display Size	15 inch
Display Resolution	1024 x 768 pixels (XGA)
Display Colors	256 colors
Display Type	TFT LCD
Touch Technology	Resistive touchscreen
Input/Operating Voltage	24 V DC
Power Consumption	Approx. 60 W
Communication Interface	MPI, PROFIBUS DP, Ethernet (TCP/IP), RS-422/485
Memory	12 MB Flash (internal), CompactFlash slot
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
Series/Product Family	SIMATIC MP 370
Certifications	CE, UL, cULus

Common Error Codes & System Events

Event ID: 1000: System startup completed successfully. The HMI panel has booted and the runtime environment is initialized.
No action required. This is an informational event confirming normal startup.
Event ID: 10000: Connection to the PLC has been lost or could not be established.
Check MPI/PROFIBUS or Ethernet cable connections. Verify PLC address settings and communication parameters in WinCC flexible project. Ensure PLC is powered and in RUN mode.
Event ID: 10001: Communication timeout with the configured PLC controller.
Verify network cabling and termination resistors on PROFIBUS. Check baud rate settings match between HMI and PLC. Restart both HMI and PLC if issue persists.
Event ID: 20000: Tag read error. A configured process tag could not be read from the controller.
Check that the tag address in the WinCC flexible project matches the actual PLC data block or memory address. Verify PLC program is running and the address exists.
Event ID: 40000: Project download error. Transfer of the WinCC flexible project to the panel failed.
Verify the transfer channel settings (Ethernet or MPI). Ensure the panel is in Transfer mode before initiating download. Check firewall settings if transferring via Ethernet.
Event ID: 50000: Insufficient memory for runtime operation. Available flash or RAM is critically low.
Delete unnecessary archived data, alarm logs, or recipe files from the panel. Consider using a CompactFlash card to extend storage capacity.
Event ID: 70010: Operating system error or runtime software crash detected.
Perform a controlled restart of the panel. If the fault recurs, re-flash the panel firmware using ProSave and reload the WinCC flexible project.

Frequently Asked Questions

What PLC systems is the SIMATIC MP 370 compatible with?

The MP 370 is compatible with SIMATIC S7-200, S7-300, and S7-400 PLCs via MPI or PROFIBUS DP, and also supports Ethernet-based communication with S7 controllers. Third-party PLCs can be integrated using available driver packages in WinCC flexible.

What software is required to configure and program the MP 370?

The MP 370 is programmed using Siemens WinCC flexible software. Projects are created on a PC and transferred to the panel via Ethernet, MPI, or CompactFlash card.

What is the input voltage requirement for the 6AV6446-3BA40-1BY4?

The panel requires a 24 V DC power supply. It is recommended to use a regulated SELV power supply meeting IEC 60364-4-41 requirements.

Can the MP 370 operate as a standalone panel PC with custom applications?

The MP 370 is an HMI panel designed to run WinCC flexible runtime. While it is based on a Windows CE platform, it is optimized for HMI visualization tasks rather than general-purpose PC applications.

What communication interfaces are available on the 6AV6446-3BA40-1BY4?

This unit provides MPI/PROFIBUS DP (combined interface), an Ethernet RJ45 port (10/100 Mbit/s), and an RS-422/485 serial interface, supporting a wide range of industrial communication protocols.

Troubleshooting

Display remains blank after power on

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

Ensure the power supply provides stable 24 V DC within the specified tolerance. Replace the power supply if voltage is absent or unstable. If voltage is correct but display remains off, the backlight or internal power board may require replacement.

Touchscreen does not respond or registers incorrect touch positions

Perform a touchscreen calibration from the panel's Control Panel settings. Check for physical damage or contamination on the screen surface.

Recalibrate the touchscreen using the calibration utility in the Windows CE Control Panel. Clean the screen surface with a soft, dry cloth. If calibration fails repeatedly, the touchscreen overlay may need replacement.

HMI cannot establish communication with the PLC

Verify the MPI or PROFIBUS address configured in the WinCC flexible project matches the PLC settings. Check cable connections and bus termination. Use the Siemens communication diagnostics tool to check bus status.

Correct address mismatches in the WinCC flexible project and reload the project to the panel. Replace or reseat the MPI/PROFIBUS cable. Ensure proper bus termination resistors are installed at both ends of the PROFIBUS segment.

Panel freezes or restarts unexpectedly during operation

Check the supply voltage for ripple or voltage drops under load. Review the system event log on the panel for error event IDs. Inspect the CompactFlash card for errors if one is installed.

Stabilize the 24 V DC power supply and ensure adequate current capacity. Re-flash the panel firmware using ProSave if software corruption is suspected. Replace the CompactFlash card if storage errors are logged.

WinCC flexible project transfer fails

Confirm the panel is set to Transfer mode before initiating the download. Verify the IP address or MPI address settings in the transfer dialog match the panel configuration.

Switch the panel to Transfer mode via the Start Center. Correct the communication settings in WinCC flexible's transfer dialog. If using Ethernet, ensure no firewall is blocking the transfer port and that both devices are on the same network subnet.

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