Siemens 6AV6446-3BA41-2BY4 SIMATIC MP 370

Name: Siemens 6AV6446-3BA41-2BY4 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-3BA41-2BY4
Price: 1995.00 EUR
Availability: InStock

€ 1.995,00

Condition

Clear

SKU: 6AV6446-3BA41-2BY4 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-3BA41-2BY4 is a Multi Panel (MP 370) belonging to the SIMATIC HMI family, designed for demanding visualization and operator control tasks in industrial automation environments. This panel is part of the MP 370 series, which offers a 15-inch display and is intended for use as a high-performance operator interface in complex machine and plant applications. It is manufactured by Siemens and integrates seamlessly into the SIMATIC automation architecture.

The MP 370 features a 15-inch TFT color display with a resolution of 1024 x 768 pixels (XGA), capable of rendering up to 65,536 colors for clear and detailed process visualization. It supports both touch screen and key operation, providing flexible interaction options for operators. The panel runs on Windows CE and supports multiple communication interfaces including MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling integration with a wide range of Siemens PLCs and third-party controllers. Onboard memory includes Flash memory for project storage, and the unit supports Compact Flash card expansion for additional data logging and recipe management.

The SIMATIC MP 370 is widely deployed in machine building, automotive manufacturing, food and beverage processing, and chemical plant operations where large-format, high-resolution visualization is required. Its robust industrial design, wide operating temperature range, and compliance with relevant industrial standards make it suitable for installation in control cabinets and operator stations in harsh production environments. The combination of touch and key operation, along with broad communication support, makes it a versatile solution for complex SCADA and HMI applications.

Technical Specifications

Display Size	15 inch
Display Resolution	1024 x 768 pixels (XGA)
Display Colors	65,536 colors
Display Type	TFT color LCD
Touch Technology	Resistive touch screen with function keys
Operating System	Windows CE
Input Voltage	24 V DC
Power Consumption	Approx. 40 W
Communication Interface	MPI, PROFIBUS DP, Ethernet (TCP/IP), RS-422/485
Memory	12 MB Flash (internal), Compact Flash card slot
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
Relative Humidity	10% to 90% (non-condensing)
IP Rating (Front)	IP65
Mounting	Panel mounting
Certifications	CE, UL, cULus

Common Error Codes & System Events

Event ID: 10000: Connection to the PLC could not be established or was interrupted during runtime.
Check the communication cable and interface settings. Verify the PLC address and communication parameters in the HMI project configuration. Ensure the PLC is powered and in RUN mode.
Event ID: 10001: Tag read error — the HMI was unable to read a configured tag from the connected controller.
Verify the tag address in the HMI project matches the actual PLC data block or memory address. Check for PLC program changes that may have altered the address structure.
Event ID: 10002: Tag write error — the HMI was unable to write a value to the configured tag in the controller.
Check that the target PLC address is writable and not protected. Verify communication link integrity and confirm the tag address is correctly configured in WinCC flexible.
Event ID: 20000: System memory low — available runtime memory on the panel is critically low.
Reduce the number of active screens or objects loaded simultaneously. Archive or delete unnecessary data logs and recipe records. Consider optimizing the HMI project to reduce memory usage.
Event ID: 40000: Project download failed or project file is corrupted.
Re-download the project from the engineering PC using WinCC flexible. Ensure the project was compiled without errors before transfer. Check the communication link between the PC and the panel.
Event ID: 50000: Compact Flash card not detected or read/write error on the CF card.
Remove and reinsert the Compact Flash card. Verify the card is formatted correctly (FAT16/FAT32). Replace the CF card if errors persist.
Event ID: 60000: Internal hardware fault detected — panel self-diagnostic has identified a hardware error.
Perform a panel restart. If the fault persists, note the full event ID details and contact Siemens technical support or arrange for unit inspection and repair.

Frequently Asked Questions

What PLC systems is the SIMATIC MP 370 compatible with?

The MP 370 is primarily designed for use with Siemens SIMATIC S7-300 and S7-400 PLCs via MPI or PROFIBUS DP. It also supports Ethernet-based communication with S7 controllers and can be configured for third-party controllers using appropriate drivers in WinCC flexible.

What engineering software is required to configure the MP 370?

The MP 370 is configured using Siemens WinCC flexible engineering software. Projects are created on a PC and then downloaded to the panel via Ethernet, MPI, or USB connection.

Does the MP 370 support both touch and key operation?

Yes, the MP 370 15-inch variant supports both resistive touch screen input and physical function keys located around the display, allowing flexible operator interaction.

What is the supply voltage for the 6AV6446-3BA41-2BY4?

The panel operates on 24 V DC supply voltage, which is the standard supply used across the SIMATIC HMI panel range.

Can the MP 370 log data and manage recipes?

Yes, the MP 370 supports data logging and recipe management. Data can be stored internally in Flash memory or on an external Compact Flash card inserted into the card slot on the panel.

Troubleshooting

Display remains blank after power is applied

Check that 24 V DC is present at the power supply terminals on the rear of the panel. Measure voltage at the connector to confirm supply integrity. Inspect the internal fuse if accessible.

Ensure the 24 V DC supply is within tolerance and correctly wired. If the supply is confirmed good but the display remains blank, the backlight or internal power board may have failed and the unit should be sent for repair or the backlight replaced.

Panel displays 'No connection to PLC' or communication errors at startup

Verify the communication cable type and wiring between the panel and PLC. Check the interface settings (MPI address, PROFIBUS baud rate, or Ethernet IP address) in the HMI project match the PLC configuration.

Correct any mismatched communication parameters in WinCC flexible and re-download the project. Replace the communication cable if damaged. Confirm the PLC is powered on and in RUN mode before the HMI attempts to connect.

Touch screen does not respond or responds inaccurately

Attempt to recalibrate the touch screen through the panel's Control Panel settings accessible during startup. Check for physical damage or contamination on the screen surface.

Perform a touch screen recalibration via the Windows CE Control Panel. Clean the screen surface with a soft, dry cloth. If calibration does not resolve the issue, the touch screen overlay may need replacement.

Project download fails or transfer is interrupted

Check the communication link between the engineering PC and the panel (Ethernet cable, MPI adapter, or USB connection). Verify that WinCC flexible is using the correct transfer channel and that the panel is in Transfer mode.

Switch the panel to Transfer mode manually via the Start Center. Ensure the correct transfer channel is selected in WinCC flexible. Try a different cable or interface if the issue persists. Recompile the project to rule out project file corruption.

Compact Flash card is not recognized by the panel

Remove the CF card and inspect the card slot contacts for contamination or damage. Test the CF card in a card reader on a PC to verify it is functional and correctly formatted.

Reformat the CF card to FAT16 or FAT32 on a PC and reinsert it into the panel. If the slot contacts are damaged, the panel will require hardware repair. Replace the CF card if it is found to be faulty.

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