Siemens 6AV6446-1BA41-1BB3 SIMATIC MP 370

Name: Siemens 6AV6446-1BA41-1BB3 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-1BA41-1BB3
Price: 2495.00 EUR
Availability: InStock

€ 2.495,00

Condition

Clear

SKU: 6AV6446-1BA41-1BB3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-1BA41-1BB3 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 12-inch TFT display and is part of Siemens' high-performance panel range, offering robust operator interface capabilities for industrial automation environments. The MP 370 series bridges the gap between standard operator panels and full PC-based SCADA systems.

The 6AV6446-1BA41-1BB3 is equipped with a 12" TFT color display with a resolution of 800 x 600 pixels (SVGA) and supports touch screen operation. It includes multiple communication interfaces such as MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling integration with a wide range of Siemens S7 PLCs and third-party controllers. The panel runs on WinCC flexible runtime software and provides substantial project memory for complex visualization applications, along with USB and CF card slots for data archiving and project transfer.

The SIMATIC MP 370 is widely deployed in machine building, automotive manufacturing, food and beverage processing, and chemical plant environments where a reliable and feature-rich HMI is required. Its combination of touch input, broad communication support, and compatibility with the SIMATIC S7 controller family makes it suitable for both standalone machine control panels and distributed process visualization stations. The rugged construction and wide operating temperature range allow installation in industrial cabinet environments with demanding conditions.

Technical Specifications

Display Size	12 inch
Display Type	TFT color LCD
Display Resolution	800 x 600 pixels (SVGA)
Touch Technology	Resistive touch screen
Input Voltage	24 V DC
Power Consumption	Approx. 30 W
Communication Interface	MPI, PROFIBUS DP, Ethernet (TCP/IP), RS-422/485
Memory (User)	12 MB project memory
Storage Expansion	CompactFlash (CF) card slot, USB
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
Series/Product Family	SIMATIC MP 370

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 MPI/PROFIBUS or Ethernet cabling and termination resistors. Verify PLC address settings match the HMI project configuration. Restart both PLC and HMI panel.
Event ID: 10001: Connection timeout to the configured PLC. The HMI did not receive a response from the controller within the expected time frame.
Verify network cable integrity and connector seating. Check that the PLC is in RUN mode and that the configured station address is correct in WinCC flexible.
Event ID: 40000: Tag read error. The HMI panel is unable to read the value of a configured process tag from the PLC.
Confirm the tag address exists in the PLC program and that the data block or memory area is accessible. Check for address mismatches in the WinCC flexible project.
Event ID: 40001: Tag write error. A write operation to a PLC tag failed, possibly due to a write-protected data area or communication fault.
Verify the target PLC memory area is not write-protected. Check communication link status and confirm the tag address is correctly configured.
Event ID: 20000: Project download error. Transfer of the WinCC flexible project to the panel was interrupted or failed.
Check the transfer cable or Ethernet connection used for download. Ensure the panel is in Transfer mode and that the correct interface is selected in WinCC flexible Transfer settings.
Event ID: 50000: Runtime system error. An internal error occurred in the WinCC flexible runtime environment on the panel.
Restart the HMI panel. If the error persists, reload the project via WinCC flexible. Consider performing a factory reset and re-downloading the project if the runtime remains unstable.
Event ID: 30000: Alarm buffer overflow. The number of pending alarms has exceeded the configured alarm buffer capacity.
Acknowledge and clear existing alarms. Review the alarm configuration in WinCC flexible to increase buffer size or reduce the number of simultaneously active alarms.

Frequently Asked Questions

Which PLCs are compatible with the SIMATIC MP 370 6AV6446-1BA41-1BB3?

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 WinCC flexible drivers.

What software is required to configure and program this HMI panel?

The 6AV6446-1BA41-1BB3 is configured using Siemens WinCC flexible software. The project is created on a PC and downloaded to the panel via Ethernet, MPI, or USB connection.

What is the display size and resolution of this panel?

The MP 370 6AV6446-1BA41-1BB3 features a 12-inch TFT color display with a resolution of 800 x 600 pixels (SVGA).

Does this panel support data logging and recipe management?

Yes, the SIMATIC MP 370 supports data logging and recipe management functions within WinCC flexible runtime. Data can be stored on the internal memory or on a CompactFlash card inserted into the CF slot.

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

The front panel of the 6AV6446-1BA41-1BB3 carries an IP65 protection rating, making it suitable for installation in control cabinet doors where exposure to dust and water spray is possible.

Troubleshooting

Display remains blank after power is applied

Measure the 24 V DC supply voltage at the panel power connector. Check that polarity is correct and voltage is within the specified range. Inspect the internal backlight fuse if accessible.

Correct any supply voltage issues or wiring errors. If the supply is confirmed good and the display remains blank, the backlight inverter or display assembly may require replacement. A repair or unit exchange is recommended.

Touch screen does not respond or responds inaccurately

Check whether the touch screen is physically damaged or contaminated. Attempt a touch screen recalibration through the panel's Start Center or Control Panel settings.

Clean the touch screen surface with a soft, dry cloth. Perform a recalibration via the SIMATIC HMI Start Center. If inaccuracy persists after recalibration, the touch screen overlay may be defective and require replacement.

HMI panel cannot establish communication with the S7 PLC

Verify MPI or PROFIBUS cable connections and check that bus termination resistors are correctly placed at both ends of the network. Confirm that the PLC station address configured in the WinCC flexible project matches the actual PLC address.

Correct any cabling or termination issues. Adjust the station address in the WinCC flexible project if there is a mismatch. Ensure the PLC is powered and in RUN mode before attempting communication.

Project transfer to the panel fails or is interrupted

Check the transfer interface selected in WinCC flexible matches the physical connection being used (Ethernet or MPI). Confirm the panel is set to Transfer mode via the Start Center.

Switch the panel to Transfer mode manually through the Start Center menu. Verify the IP address or MPI address settings are consistent between the PC and the panel. Retry the transfer after confirming all settings.

Panel repeatedly restarts or shows runtime errors after project load

The loaded project may contain configuration errors or may have been compiled with an incompatible version of WinCC flexible. Check the WinCC flexible version used to create the project against the runtime version on the panel.

Recompile and re-download the project using a compatible version of WinCC flexible. If the panel continues to restart, perform a factory reset via the Start Center and reload a known-good project backup.

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