Siemens 6AV6446-1AA41-0BA3 SIMATIC MP 370

Name: Siemens 6AV6446-1AA41-0BA3 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-1AA41-0BA3
Price: 4076.00 EUR
Availability: InStock

€ 4.076,00

Condition

Clear

SKU: 6AV6446-1AA41-0BA3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-1AA41-0BA3 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 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 engineered for use with Siemens SIMATIC S7 and S5 controller families as well as third-party systems.

The MP 370 (6AV6446-1AA41-0BA3) is equipped with a touch-screen interface and supports a wide range of communication interfaces including MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling flexible integration into existing automation networks. The panel runs on Windows CE and supports WinCC flexible runtime software for project configuration and visualization. It provides onboard memory for project storage and supports external storage via CompactFlash cards. The unit operates on a 24 V DC supply and is built to IP65 protection rating on the front face, making it suitable for panel-mount installation in industrial enclosures.

The SIMATIC MP 370 is widely deployed in manufacturing, automotive, food and beverage, chemical, and process industries where a robust and versatile HMI solution is required. Its combination of touch operation, multiple communication protocols, and Windows CE-based openness makes it suitable for complex visualization tasks on machine control panels and process control stations. The panel's compatibility with WinCC flexible allows engineers to develop and deploy sophisticated HMI projects with alarm management, trending, and recipe handling.

Technical Specifications

Display Size	12 inch
Display Type	TFT color
Display Resolution	800 x 600 px (SVGA)
Display Colors	256 colors
Touch Technology	Resistive touch screen
Input/Operating Voltage	24 V DC
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)
Communication Interface	MPI, PROFIBUS DP, Ethernet (TCP/IP), RS-422/485
Operating System	Windows CE
Series/Product Family	SIMATIC MP 370
Mounting	Panel mounting
Certifications	CE, UL, cULus

Common Error Codes & System Events

Event ID: 10000: Communication error between HMI panel and PLC controller. Connection to the configured controller cannot be established.
Check MPI/PROFIBUS or Ethernet cable connections and termination resistors. Verify the PLC address and communication parameters in the WinCC flexible project match the hardware configuration.
Event ID: 10001: Connection to PLC lost during runtime operation.
Inspect communication cables for damage or loose connections. Verify PLC is powered and in RUN mode. Check for address conflicts on the network.
Event ID: 20000: Project download error. Transfer of the HMI project from the engineering PC to the panel failed.
Ensure the panel is in Transfer mode. Verify the communication interface settings on both the PC and the panel. Check that the correct transfer channel is selected in WinCC flexible.
Event ID: 40000: System memory low. Available runtime memory is insufficient to continue normal operation.
Reduce the size of the active project, clear alarm logs and data logs stored on the device, or expand storage using a CompactFlash card.
Event ID: 50000: Internal device error or hardware fault detected during self-test at startup.
Perform a panel reset. If the fault persists, back up the project and perform a factory reset. Contact Siemens technical support or arrange for hardware repair if the fault recurs.
Event ID: 60000: Tag value acquisition error. A configured tag cannot be read from the connected controller.
Verify the tag address in the WinCC flexible project matches the actual PLC data block or memory address. Check PLC program for the existence of the referenced variable.
Event ID: 70000: Recipe data error. Recipe records cannot be read from or written to the configured storage location.
Check that the CompactFlash card is properly inserted and not write-protected. Verify recipe configuration in WinCC flexible and ensure sufficient storage space is available.

Frequently Asked Questions

What communication interfaces does the 6AV6446-1AA41-0BA3 support?

The SIMATIC 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.

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

The panel is configured using Siemens WinCC flexible engineering software. The runtime environment is pre-installed on the panel and runs on Windows CE.

Is this panel 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 also supports S7 communication over Ethernet where applicable.

What is the supply voltage for the 6AV6446-1AA41-0BA3?

The panel operates on a 24 V DC supply voltage, which is the standard supply for SIMATIC HMI panels in this series.

Can external storage be used to expand the panel's memory?

Yes, the MP 370 supports CompactFlash cards for expanded project storage, data logging, recipe storage, and backup of the HMI project.

Troubleshooting

Display remains blank after power on

Measure 24 V DC at the power supply connector on the rear of the panel. Check internal fuse if accessible. Observe whether the backlight is off or the screen shows no image at all.

Verify the 24 V DC supply is within tolerance. If the supply is correct but the display remains blank, the backlight inverter or the display unit itself may have failed and the panel will require hardware repair or replacement of the display assembly.

Panel does not communicate with the PLC

Check the MPI or PROFIBUS cable connections and verify the bus termination at both ends of the network. Confirm the PLC address configured in the WinCC flexible project matches the actual PLC hardware configuration.

Replace or reseat communication cables. Correct any address mismatches in the WinCC flexible project. Ensure the PLC is in RUN mode and that no other device on the bus shares the same address.

Touch screen does not respond or responds inaccurately

Attempt to recalibrate the touch screen through the Windows CE control panel or the SIMATIC HMI panel startup menu. Check for physical damage or contamination on the screen surface.

Perform a touch screen calibration from the panel's startup menu. Clean the screen surface with a soft, dry cloth. If calibration does not resolve the issue, the touch foil or touch controller may require replacement.

Project transfer from PC to panel fails

Confirm the panel is set to Transfer mode. Verify the communication channel settings (MPI address, Ethernet IP address) match between the WinCC flexible transfer settings and the panel configuration.

Set the panel to Transfer mode via the startup menu. Correct the transfer channel settings in WinCC flexible. If using Ethernet, ensure both devices are on the same subnet and no firewall is blocking the transfer port.

Panel reboots repeatedly or freezes during runtime

Check for corrupted project data by attempting to reload the project. Monitor the 24 V DC supply for voltage drops or ripple that may cause instability. Check the CompactFlash card for errors.

Re-download the WinCC flexible project to the panel. Replace the CompactFlash card if it shows errors. Ensure the 24 V DC power supply is stable and adequately rated for the panel's power consumption.

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