Siemens 6AV6446-1AA41-2BB3 SIMATIC MP 370

Name: Siemens 6AV6446-1AA41-2BB3 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-1AA41-2BB3
Price: 1995.00 EUR
Availability: InStock

€ 1.995,00

Condition

Clear

SKU: 6AV6446-1AA41-2BB3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-1AA41-2BB3 is a Multi Panel (MP 370) belonging to the SIMATIC HMI family, designed for demanding machine-level visualization and operator control tasks. This panel features a 12-inch TFT display and is part of Siemens' high-performance Multi Panel series, which bridges the gap between standard operator panels and full PC-based systems. It is intended for use with Siemens WinCC flexible runtime software and integrates seamlessly into SIMATIC automation environments.

The MP 370 panel is equipped with a 12-inch color TFT display with a resolution of 800 x 600 pixels (SVGA) and supports touch screen operation. It includes a range of communication interfaces such as MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling flexible integration into various network topologies. The unit runs on a Windows CE operating system and provides sufficient onboard memory for complex visualization projects, supporting USB ports for data transfer and peripheral connectivity. The panel is built to industrial standards with an IP65 front protection rating, making it suitable for harsh industrial environments.

The SIMATIC MP 370 is widely deployed in manufacturing, automotive, food and beverage, and process industries where reliable and flexible HMI solutions are required at the machine level. Its multi-protocol communication capability makes it suitable for integration with SIMATIC S7 PLCs as well as third-party controllers. The large display size and touch interface make it appropriate for applications requiring detailed process visualization, recipe management, alarm handling, and trend display.

Technical Specifications

Display Size	12 inch
Display Resolution	800 x 600 pixels (SVGA)
Display Colors	256 colors
Touch Technology	Resistive touch screen
Input/Operating Voltage	24 V DC
Power Consumption	Max. 30 W
Communication Interface	MPI, PROFIBUS DP, Ethernet (TCP/IP), RS-422/485
USB Ports	2 x USB
Operating System	Windows CE
IP/Protection Rating	IP65 (front), IP20 (rear)
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 HMI Multi Panel 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/Ethernet cabling and connector integrity. Verify PLC address settings and communication parameters in WinCC flexible project match the hardware configuration.
Event ID: 10001: Connection to PLC interrupted during runtime. Tags cannot be read or written.
Inspect network cables and connectors. Confirm PLC is powered and running. Check for address conflicts on the bus. Restart the HMI panel after resolving the connection issue.
Event ID: 20000: Project download error. The project could not be transferred to the panel successfully.
Verify the transfer cable or network connection between the engineering PC and the panel. Ensure the panel is in transfer mode and that the WinCC flexible version is compatible with the panel firmware.
Event ID: 40000: System memory low. Available RAM or flash memory on the panel is insufficient for the current project or runtime operation.
Reduce project size by optimizing graphics and scripts. Delete unnecessary files from the panel memory. Consider archiving or offloading data logs to external USB storage.
Event ID: 70000: Firmware update error. The firmware update process was interrupted or failed.
Restart the panel and attempt the firmware update again using the correct firmware version for the 6AV6446-1AA41-2BB3. Use a stable network or direct USB connection during the update process.
Event ID: 50000: Tag update cycle violation. The configured update cycle for one or more tags cannot be maintained by the system.
Increase the configured tag update cycle times in the WinCC flexible project. Reduce the number of simultaneously active tags or optimize communication load on the bus.
Event ID: 30000: Recipe data error. A recipe record could not be read from or written to the storage medium.
Check the integrity of the storage medium (internal flash or USB). Verify recipe configuration in the WinCC flexible project. Re-transfer the project if recipe data is corrupted.

Frequently Asked Questions

What communication interfaces are available on the 6AV6446-1AA41-2BB3?

The MP 370 12-inch panel supports MPI, PROFIBUS DP, Ethernet (TCP/IP via RJ45), and RS-422/RS-485 interfaces, allowing connection to a wide range of SIMATIC PLCs and third-party controllers.

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

The 6AV6446-1AA41-2BB3 is configured using Siemens WinCC flexible software. The project is created on an engineering PC and then downloaded to the panel via Ethernet or MPI connection.

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 PLCs over Ethernet using the appropriate drivers.

What is the front panel protection rating of this unit?

The front panel of the 6AV6446-1AA41-2BB3 carries an IP65 protection rating, making it resistant to dust ingress and low-pressure water jets, suitable for industrial panel mounting applications.

Can this panel be used as a replacement for an older SIMATIC Panel PC or OP series device?

The MP 370 can serve as a functional replacement for older SIMATIC operator panels in many applications, provided the WinCC flexible project is adapted to the MP 370 hardware and the communication interfaces match the existing installation.

Troubleshooting

Display remains blank after power on

Measure the 24 V DC supply voltage at the panel power connector. Check that the supply is within the specified tolerance. Inspect the internal fuse if accessible.

Ensure the 24 V DC supply is stable and within specification. If the supply is correct and the display remains blank, the internal power supply board or backlight inverter may be faulty and require replacement or professional repair.

Touch screen does not respond or responds inaccurately

Attempt to recalibrate the touch screen through the panel's Start Center or control panel settings. 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 recalibration does not resolve the issue, the touch screen overlay may need to be replaced.

Panel fails to establish communication with the PLC

Verify the MPI or PROFIBUS address settings on both the panel and the PLC. Check cable connections and termination resistors on the bus. Use a bus diagnostic tool to check for signal integrity issues.

Correct any address conflicts and ensure bus termination is applied only at the physical ends of the bus. Replace damaged cables or connectors. Re-download the WinCC flexible project with verified communication parameters.

Panel freezes or restarts unexpectedly during operation

Check the 24 V DC supply for voltage dips or ripple using an oscilloscope. Review the Windows CE event log for software exceptions. Assess the ambient temperature around the panel installation.

Stabilize the power supply and ensure adequate ventilation around the panel. If software exceptions are logged, re-transfer the WinCC flexible project. If the issue persists, the panel may require a firmware update or hardware inspection.

Project transfer from engineering PC fails

Confirm the panel is set to transfer mode via the Start Center. Verify the IP address or MPI address configuration on both the PC and the panel. Check the Ethernet or MPI cable for faults.

Set the correct transfer channel and address in both WinCC flexible and the panel Start Center. Replace the transfer cable if faulty. Ensure the WinCC flexible version is compatible with the installed panel firmware version, updating firmware if necessary.

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