Siemens 6AV6446-1AA41-1BA5 SIMATIC MP 370

Name: Siemens 6AV6446-1AA41-1BA5 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-1AA41-1BA5
Price: 1995.00 EUR
Availability: InStock

€ 1.995,00

Condition

Clear

SKU: 6AV6446-1AA41-1BA5 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-1AA41-1BA5 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 the MP 370 series, which provides high-performance operator interface functionality for industrial automation environments. It is manufactured by Siemens and represents a robust, panel-mounted HMI solution within the SIMATIC product line.

The 6AV6446-1AA41-1BA5 is equipped with a 12-inch color TFT display with a resolution of 800 x 600 pixels (SVGA), supporting 256 colors. It includes a resistive touch screen interface combined with function keys for flexible operator input. The panel runs on WinCC flexible runtime software and supports multiple communication interfaces including MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling integration with a wide range of Siemens SIMATIC S7 PLCs as well as third-party controllers. The unit operates on a 24 V DC supply and is rated IP65 on the front face for protection against dust and water ingress.

The SIMATIC MP 370 is widely deployed in manufacturing, automotive, food and beverage, chemical, and water treatment industries. It is suited for applications requiring a large, clear operator interface with reliable communication to programmable logic controllers on the shop floor. Its combination of touch and key-based input, along with broad protocol support, makes it appropriate for complex machine HMI applications where operators need to monitor and control multiple process parameters simultaneously.

Technical Specifications

Display Size	12 inch
Display Type	TFT Color LCD
Display Resolution	800 x 600 pixels (SVGA)
Display Colors	256 colors
Touch Technology	Resistive touchscreen with function keys
Input Voltage	24 V DC
Voltage Tolerance	19.2 V DC to 28.8 V DC
IP Rating (Front)	IP65
IP Rating (Rear)	IP20
Communication Interfaces	MPI, PROFIBUS DP, Ethernet (TCP/IP), RS-422/485
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
Relative Humidity	10% to 90% (non-condensing)
Mounting	Panel mounting
Certifications	CE, UL, cULus
Series/Product Family	SIMATIC MP 370

Common Error Codes & System Events

Event ID: 10000: Configuration error detected during startup; the project loaded on the panel contains configuration inconsistencies.
Reload the WinCC flexible project via ProSave or the Siemens Transfer tool. Verify project compatibility with the panel firmware version.
Event ID: 10001: Communication connection to the PLC has been lost or cannot be established.
Check MPI/PROFIBUS/Ethernet cabling and connector integrity. Verify PLC address settings and communication parameters in the WinCC flexible project match the PLC configuration.
Event ID: 20000: System memory is critically low; insufficient RAM available for runtime operation.
Reduce the number of active screens or objects in the project. Restart the panel and reload the project. Consider optimizing the WinCC flexible project to reduce memory usage.
Event ID: 40000: Tag update error; one or more process tags cannot be read from or written to the connected controller.
Verify PLC is in RUN mode and the data blocks or memory areas referenced by the tags exist and are accessible. Check tag addressing in the WinCC flexible configuration.
Event ID: 50000: Internal system error occurred in the HMI runtime environment.
Perform a controlled restart of the panel. If the error persists, update the panel firmware to the latest compatible version using ProSave.
Event ID: 70000: Transfer mode active; the panel is waiting for a project transfer from the engineering PC.
Initiate the project transfer from WinCC flexible on the engineering PC, or cancel transfer mode via the panel Start Center to resume normal operation.
Event ID: 110000: Backup or restore operation failed due to insufficient storage space or media error.
Ensure the target storage medium (CF card or network path) has sufficient free space and is not write-protected. Retry the backup or restore operation.

Frequently Asked Questions

Which PLCs are compatible with the SIMATIC MP 370 (6AV6446-1AA41-1BA5)?

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 connect to third-party controllers via serial interfaces using appropriate drivers in WinCC flexible.

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

The MP 370 is configured using Siemens WinCC flexible engineering software. Projects are created on a PC and transferred to the panel via Ethernet, MPI, or USB using the ProSave utility or directly from WinCC flexible.

What is the supply voltage for the 6AV6446-1AA41-1BA5?

The panel requires a 24 V DC supply voltage with an acceptable range of 19.2 V DC to 28.8 V DC. A stable, regulated DC power supply is recommended to ensure reliable operation.

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

The front face of the MP 370 is rated IP65, providing full protection against dust ingress and protection against low-pressure water jets, making it suitable for installation in industrial enclosures exposed to washdown or dusty environments.

Can the MP 370 be used with a CompactFlash card for data storage?

Yes, the SIMATIC MP 370 supports CompactFlash (CF) cards for storing project data, recipes, data logs, and for firmware updates or project transfers, providing a convenient means of data management and backup.

Troubleshooting

Display remains blank after power is applied

Measure the 24 V DC supply voltage at the panel power connector. Check that the voltage is within the 19.2 V to 28.8 V range. Inspect the internal fuse if accessible.

Correct the supply voltage if out of range. Replace a blown internal fuse with the correct rating. If the backlight has failed, the backlight unit or the panel itself may require replacement or professional repair.

Touchscreen does not respond or responds inaccurately to touch input

Check whether the touch area is physically damaged or contaminated. Attempt to recalibrate the touchscreen via the panel's Start Center or Control Panel settings.

Clean the touchscreen surface with a soft, dry cloth. Perform a touchscreen recalibration through the Start Center. If calibration does not resolve the issue, the resistive touch overlay may be worn or damaged and requires replacement.

Panel cannot establish communication with the PLC

Verify the communication cable type and wiring (MPI, PROFIBUS, or Ethernet). Check that the PLC address and baud rate configured in the WinCC flexible project match the actual PLC settings.

Replace or reseat the communication cable. Correct any address or baud rate mismatches in the WinCC flexible project and retransfer the project to the panel. Test with a known-good cable to rule out cable faults.

Panel repeatedly restarts or crashes during runtime operation

Check for low supply voltage or voltage fluctuations. Review the system event log accessible via the panel's Start Center for specific event IDs indicating the cause of the restart.

Stabilize the 24 V DC power supply. If a specific event ID is logged, address the corresponding fault. If the issue persists, perform a firmware update using ProSave and reload the WinCC flexible project.

Project transfer from engineering PC fails or times out

Verify the transfer connection type (Ethernet, MPI, or USB) and ensure the panel is in Transfer mode via the Start Center. Check firewall settings on the engineering PC if using Ethernet transfer.

Place the panel in Transfer mode manually via the Start Center. Disable PC firewall temporarily to test Ethernet transfer. Ensure the correct communication interface and parameters are selected in WinCC flexible before initiating the transfer.

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