Siemens 6AV6446-4AA41-0AY3 MP 370

€ 1.995,00

SKU: 6AV6446-4AA41-0AY3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-4AA41-0AY3 is a Multi Panel (MP 370) belonging to the SIMATIC HMI Multi Panel series, designed for demanding visualization and operator control tasks in industrial automation environments. This panel features a 15-inch TFT display and is part of Siemens' high-performance HMI lineup, offering robust processing power and flexible communication options. The MP 370 series bridges the gap between compact operator panels and full PC-based systems, providing a reliable and scalable solution for machine-level visualization.

The 6AV6446-4AA41-0AY3 is equipped with a 15-inch TFT color display with a resolution of 1024 x 768 pixels (XGA) and supports touch screen operation. It runs on a Windows CE operating system and is configured with WinCC flexible runtime software for project execution. The panel provides multiple communication interfaces including MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling integration into a wide range of Siemens and third-party control architectures. It includes a CompactFlash card slot for additional memory expansion and data logging, and features a USB interface for peripheral device connectivity.

The MP 370 is widely used in manufacturing, automotive, food and beverage, and process industries where large-format, high-resolution visualization is required at the machine or line level. Its 15-inch display makes it suitable for applications demanding detailed process graphics, trend displays, and alarm management. The panel is compatible with SIMATIC S7-300, S7-400, and S7-1500 PLCs, making it a common choice for system integrators working within the Siemens automation ecosystem.

Technical Specifications

Display Size	15 inch
Display Resolution	1024 x 768 pixels (XGA)
Display Type	TFT color
Display Colors	64,000 colors
Touch Technology	Resistive touch screen
Input/Operating Voltage	24 V DC
Power Consumption	Max. 60 W
Operating System	Windows CE
Communication Interface	MPI, PROFIBUS DP, Ethernet (TCP/IP), USB
Memory Expansion	CompactFlash 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
IP Rating (Rear)	IP20
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 communication cable connections, verify MPI/PROFIBUS address settings, and confirm PLC is powered and in RUN mode.
Event ID: 10001: Tag read error — the HMI panel cannot read a configured tag from the PLC.
Verify the tag address in WinCC flexible matches the actual PLC data block or memory address. Check PLC program for address changes.
Event ID: 10002: Tag write error — the HMI panel cannot write a value to the configured PLC tag.
Check that the target PLC memory area is not write-protected. Verify tag configuration and PLC program logic.
Event ID: 20000: Project download failed or project file is corrupt.
Re-transfer the project from the WinCC flexible engineering station. Ensure sufficient memory is available on the panel and the transfer cable is functioning correctly.
Event ID: 40000: System memory low — available runtime memory is critically low.
Reduce the number of active screens or objects. Archive or delete unnecessary data logs and alarm logs stored on the panel.
Event ID: 50000: CompactFlash card not detected or read/write error on the memory card.
Re-seat the CompactFlash card. Replace the card if errors persist. Ensure the card is formatted correctly and is a compatible type.
Event ID: 70000: Internal panel hardware fault detected, potentially related to the display or backlight.
Restart the panel. If the fault persists, inspect the display connections internally or arrange for hardware repair/replacement of the panel.

Frequently Asked Questions

What display size and resolution does the 6AV6446-4AA41-0AY3 offer?

The panel features a 15-inch TFT color display with a resolution of 1024 x 768 pixels (XGA) and supports resistive touch screen input.

Which communication interfaces are available on this MP 370 panel?

The panel supports MPI, PROFIBUS DP, and Ethernet (TCP/IP) interfaces, as well as USB ports for peripheral connectivity.

Which PLCs are compatible with the Siemens MP 370?

The MP 370 is compatible with SIMATIC S7-300, S7-400, and S7-1500 PLCs, as well as other controllers supported by WinCC flexible communication drivers.

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

The MP 370 is configured using Siemens WinCC flexible engineering software. The runtime environment runs on the panel's Windows CE operating system.

Can the memory on this panel be expanded?

Yes, the panel includes a CompactFlash card slot that can be used for project storage, data logging, and recipe management, providing additional non-volatile memory capacity.

Troubleshooting

Display remains blank after power on

Measure the 24 V DC supply voltage at the panel's power connector. Check whether the power LED is illuminated. Determine if the backlight has failed while the panel is otherwise operational by shining a light at the screen to check for faint images.

Verify and restore the 24 V DC supply if out of range. If the backlight has failed, the display unit or backlight inverter requires replacement. If no power LED is present, inspect internal fuses and the power supply board.

HMI panel cannot communicate with the PLC

Check the physical cable connections on the MPI or PROFIBUS port. Verify the bus address configured on the panel matches the network configuration. Use a bus diagnostic tool to check for network errors or address conflicts.

Replace or reseat the communication cable. Correct the MPI/PROFIBUS address in the panel's transfer settings. Ensure terminating resistors are correctly placed at both ends of the PROFIBUS network.

Touch screen does not respond or responds inaccurately

Attempt to recalibrate the touch screen through the panel's Control Panel settings in Windows CE. Check for physical damage, scratches, or contamination on the touch surface.

Perform a touch screen recalibration via Start > Settings > Control Panel > Touch on the Windows CE interface. If calibration does not resolve the issue, the touch screen overlay may need to be replaced.

Project transfer from engineering PC fails

Verify the transfer cable type and connection (USB or Ethernet). Confirm the panel is set to Transfer mode. Check that the WinCC flexible version on the PC is compatible with the panel's firmware version.

Switch the panel to Transfer mode via the panel's loader screen. Update the panel firmware if there is a version mismatch. Use a known-good transfer cable and verify network/IP settings if transferring via Ethernet.

Panel repeatedly restarts or crashes during runtime

Check for low memory conditions by reviewing the runtime log. Inspect the CompactFlash card for errors. Verify the 24 V DC supply is stable and within tolerance under load.

Reduce project complexity or archive data logs to free memory. Replace a faulty CompactFlash card. Stabilize the power supply using an appropriate power supply unit rated for the panel's load. If the issue persists, a firmware update or hardware repair may be required.

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