Siemens 6AV6446-3AA40-2BY3 MP 370

€ 2.495,00

SKU: 6AV6446-3AA40-2BY3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-3AA40-2BY3 is a Multi Panel (MP 370) belonging to the SIMATIC HMI Multi Panel series, manufactured by Siemens. It is a high-performance operator panel designed for demanding industrial visualization and control tasks, featuring a 12-inch TFT display. This unit serves as a human-machine interface capable of running WinCC flexible runtime software for process visualization and machine control.

The MP 370 (6AV6446-3AA40-2BY3) features a 12.1-inch TFT color display with a resolution of 800 x 600 pixels (SVGA) and 256 colors. It is equipped with a touch screen interface and supports multiple communication interfaces including MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling integration with a wide range of Siemens SIMATIC PLCs. The panel runs on a Windows CE operating system and provides substantial onboard memory for project data and runtime applications, with an integrated CompactFlash card slot for additional storage expansion.

The MP 370 is widely deployed in manufacturing automation, process industries, and machine building applications where a robust and versatile HMI solution is required. Its compatibility with SIMATIC S7-300 and S7-400 PLCs makes it a standard choice for complex machine visualization in automotive, food and beverage, chemical, and packaging industries. The panel's rugged construction and wide operating temperature range make it suitable for installation in industrial control cabinets and harsh production environments.

Technical Specifications

Display Size	12.1 inch
Display Resolution	800 x 600 pixels (SVGA)
Display Colors	256 colors
Display Type	TFT color LCD
Touch Technology	Resistive touch screen
Input/Operating Voltage	24 V DC
Power Consumption	Max. 40 W
Communication Interface	MPI, PROFIBUS DP, Ethernet (TCP/IP), RS-422/485
Operating System	Windows CE
Memory (RAM)	32 MB
Memory (Flash)	16 MB
Storage 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
Mounting	Panel mounting
Certifications	CE, UL, cULus

Common Error Codes & System Events

Event ID: 1000000: System startup event indicating the HMI runtime has been initialized successfully.
No action required. Verify project loads correctly and communication to PLC is established.
Event ID: 1000002: Communication error between the HMI panel and the connected PLC or controller.
Check MPI/PROFIBUS/Ethernet cable connections and network settings. Verify PLC address configuration matches HMI project settings.
Event ID: 1000003: Connection to the configured PLC has been lost during runtime operation.
Inspect physical communication cables and connectors. Verify PLC is powered and running. Check network address and baud rate settings in the HMI project.
Event ID: 1000010: Project download failed or project data is corrupted on the panel.
Re-download the project from the engineering PC using WinCC flexible. Ensure the project version is compatible with the panel firmware version.
Event ID: 1000011: Panel memory is insufficient to load the current project.
Reduce project size or increase storage using a CompactFlash card. Archive unused project elements and optimize image and script resources.
Event ID: 1000020: Firmware version mismatch between the HMI panel and the WinCC flexible project.
Update the panel firmware to match the WinCC flexible engineering software version, or re-compile and download the project using a compatible software version.
Event ID: 1000030: Touch screen calibration error or touch input not responding correctly.
Perform touch screen recalibration via the panel's Control Panel settings in Windows CE. If the issue persists, inspect the touch screen hardware for damage.

Frequently Asked Questions

What PLC systems are compatible with the Siemens MP 370 (6AV6446-3AA40-2BY3)?

The MP 370 is compatible with Siemens SIMATIC S7-300, S7-400, S7-200, and S5 PLCs via MPI or PROFIBUS DP interfaces. Ethernet-based communication with S7 PLCs is also supported via TCP/IP.

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

The MP 370 is configured using Siemens WinCC flexible engineering software. The project is compiled and downloaded to the panel via MPI, PROFIBUS, or Ethernet connection from the engineering PC.

What is the input voltage for the Siemens 6AV6446-3AA40-2BY3?

The panel operates on 24 V DC supply voltage. Ensure the power supply is adequately rated for the panel's maximum power consumption of approximately 40 W.

Can the MP 370 be used with third-party PLCs or controllers?

Yes, the MP 370 supports communication drivers for a range of third-party controllers via its serial RS-422/485 interface and Ethernet port, depending on the available WinCC flexible communication drivers.

Is it possible to expand the storage capacity of the MP 370?

Yes, the MP 370 is equipped with a CompactFlash card slot that allows additional storage for project data, recipes, data logs, and archived files.

Troubleshooting

Display remains blank after power on

Measure the 24 V DC supply voltage at the panel's power connector. Check that the supply voltage is within the specified range and that the power connector is firmly seated.

Restore correct 24 V DC supply. If voltage is correct and 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 registers incorrect touch positions

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

Perform a touch screen recalibration. Clean the screen surface with a soft cloth. If calibration fails repeatedly, the touch screen digitizer may need to be replaced.

Communication error with PLC displayed at runtime

Verify the MPI, PROFIBUS, or Ethernet cable connections between the panel and the PLC. Check that the network address, baud rate, and protocol settings in the HMI project match the PLC configuration.

Correct any wiring faults or loose connectors. Adjust communication parameters in the WinCC flexible project to match the PLC settings and re-download the project to the panel.

Panel fails to load project after restart

Check the CompactFlash card if installed, as a corrupted or missing card can prevent project loading. Verify that the project was successfully downloaded and that the firmware version is compatible.

Re-download the project using WinCC flexible. If a CompactFlash card is used, reformat or replace it. Update panel firmware if a version mismatch is detected.

Panel freezes or becomes unresponsive during operation

Check for excessive CPU load caused by complex scripts or large data polling cycles in the project. Verify the operating temperature is within the specified 0 °C to +50 °C range.

Optimize the HMI project by reducing polling cycles and script complexity. Ensure adequate ventilation around the panel. Perform a controlled restart and monitor for recurrence.

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