Siemens 6AV6446-7BA40-1BY4 SIMATIC MP 370

Name: Siemens 6AV6446-7BA40-1BY4 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-7BA40-1BY4
Price: 2495.00 EUR
Availability: InStock

€ 2.495,00

Condition

Clear

SKU: 6AV6446-7BA40-1BY4 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-7BA40-1BY4 is a Multi Panel (MP 370) belonging to the SIMATIC HMI family, designed for high-performance human-machine interface applications in industrial automation environments. This panel features a 15-inch TFT display and is part of Siemens' advanced operator panel series, offering robust visualization and control capabilities. It is engineered to operate reliably in demanding industrial conditions and integrates seamlessly with Siemens SIMATIC controller platforms.

The MP 370 panel is equipped with a high-resolution 15-inch TFT color display with a resolution of 1024 x 768 pixels, supporting 64,000 colors for clear process visualization. It features both touch screen and key-based operation, providing flexible operator interaction. The unit supports multiple communication interfaces including MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling integration into a wide range of automation network architectures. Configured using Siemens WinCC flexible engineering software, the panel offers substantial project memory and supports a variety of scripting and alarm management functions.

The SIMATIC MP 370 is widely deployed in manufacturing, process automation, energy management, and machine building industries where large-format, high-resolution visualization is required. Its combination of touch and key operation makes it suitable for complex control panels in automotive production lines, chemical processing plants, and packaging machinery. The panel's robust construction and broad communication capability make it a reliable choice for both standalone HMI applications and networked SCADA-level visualization tasks.

Technical Specifications

Display Size	15 inch
Display Resolution	1024 x 768 pixels (XGA)
Display Colors	64,000 colors
Display Type	TFT LCD
Touch Technology	Resistive touchscreen with function keys
Input/Operating Voltage	24 V DC
Power Consumption	Max. 60 W
Communication Interface	MPI, PROFIBUS DP, Ethernet (TCP/IP), RS-422/485
Memory	12 MB project memory (Flash)
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 HMI Multi Panel MP 370

Common Error Codes & System Events

Event ID: 10000: Communication error between HMI panel and PLC controller. Connection to the configured PLC address cannot be established.
Check MPI or PROFIBUS DP cable connections and termination resistors. Verify the PLC address settings in WinCC flexible match the hardware configuration. Ensure the PLC is in RUN mode.
Event ID: 10001: Connection to PLC lost during runtime operation.
Inspect communication cables for damage or loose connectors. Check network topology and bus termination. Restart the HMI panel and verify PLC is operational.
Event ID: 20000: Project download error. Transfer of project data from engineering PC to the panel failed.
Verify the transfer cable or Ethernet connection between the PC and panel. Ensure the panel is in Transfer mode. Check that WinCC flexible version is compatible with the panel firmware version.
Event ID: 40000: System memory low. Available project or runtime memory is critically low.
Delete unused project data, archived logs, or recipe files from the panel memory. Consider optimizing the project size in WinCC flexible and re-downloading.
Event ID: 50000: Panel firmware version mismatch detected. The loaded project was created with an incompatible version of WinCC flexible.
Update the panel firmware to match the WinCC flexible version used to create the project, or recompile and download the project using a compatible software version.
Event ID: 70000: Touchscreen calibration error. Touch input is not registering correctly or is misaligned.
Perform a touchscreen recalibration via the panel's Start Center or Control Panel settings. If calibration fails repeatedly, the touchscreen hardware may require replacement.
Event ID: 80000: Internal temperature warning. The panel's internal operating temperature has exceeded the recommended threshold.
Check that the installation environment does not exceed 50 °C. Ensure adequate ventilation around the panel. Clean any dust from ventilation openings and verify the installation orientation.

Frequently Asked Questions

What communication interfaces does the SIMATIC MP 370 (6AV6446-7BA40-1BY4) support?

The MP 370 supports MPI, PROFIBUS DP, Ethernet (TCP/IP), and RS-422/485 serial interfaces, allowing connection to a wide range of Siemens and third-party controllers.

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

The panel is configured using Siemens WinCC flexible, which provides project creation, tag management, alarm configuration, and project download functionality for the MP 370 series.

Is the MP 370 compatible with SIMATIC S7-300 and S7-400 PLCs?

Yes, the MP 370 is fully compatible with SIMATIC S7-300 and S7-400 PLCs via MPI or PROFIBUS DP, and can also communicate with S7 controllers over Ethernet using TCP/IP.

What is the operating voltage for this HMI panel?

The panel operates on 24 V DC, which is the standard supply voltage for SIMATIC HMI panels in industrial control cabinet installations.

What is the front panel protection rating of the MP 370?

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

Troubleshooting

Display remains blank after power on

Measure the 24 V DC supply voltage at the panel's power connector. Check for blown internal fuses or a faulty power supply unit. Verify the power cable is correctly wired and making good contact.

Correct any wiring errors and ensure the supply voltage is within the 24 V DC tolerance range. Replace any blown fuses. If the power supply module is faulty, the panel will require internal repair or replacement of the power supply board.

Panel fails to communicate with the PLC via PROFIBUS DP

Check the PROFIBUS cable for correct termination at both ends of the bus segment. Verify the panel's PROFIBUS address in WinCC flexible matches the hardware configuration. Use a PROFIBUS diagnostic tool to check bus integrity.

Correct bus termination by enabling termination resistors only at the physical ends of the PROFIBUS segment. Correct the address settings in the WinCC flexible project and re-download. Replace damaged PROFIBUS cables or connectors as needed.

Touchscreen does not respond or responds inaccurately to touch input

Attempt a touchscreen recalibration from the panel's Start Center or Control Panel. Check for physical damage, contamination, or excessive pressure marks on the touchscreen surface.

Perform a full touchscreen recalibration. Clean the screen surface with a soft, dry cloth. If calibration fails or the screen remains unresponsive, the touchscreen assembly may need to be replaced.

Project download from WinCC flexible fails or times out

Verify the Ethernet or MPI/PC adapter cable connection between the engineering PC and the panel. Confirm the panel is set to Transfer mode via the Start Center. Check firewall or antivirus software on the PC that may be blocking the transfer.

Switch the panel to Transfer mode manually. Disable any PC firewall rules blocking the WinCC flexible transfer port. Use a known-good cable and verify the correct communication channel is selected in WinCC flexible's transfer settings.

Panel repeatedly reboots or freezes during runtime

Check the 24 V DC supply for voltage dips or instability under load. Review the panel's system log for recurring event IDs. Inspect the project for memory overload or script errors that may cause runtime crashes.

Stabilize the power supply by using a dedicated 24 V DC source with adequate current capacity. Optimize the WinCC flexible project to reduce memory usage. Update the panel firmware to the latest compatible version to resolve known runtime stability issues.

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