Siemens 6AV6446-1AA41-2AB3 SIMATIC MP 370

Name: Siemens 6AV6446-1AA41-2AB3 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-1AA41-2AB3
Price: 1995.00 EUR
Availability: InStock

€ 1.995,00

Condition

Clear

SKU: 6AV6446-1AA41-2AB3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-1AA41-2AB3 is a Multi Panel (MP 370) belonging to the SIMATIC HMI family, designed for demanding machine-level visualization and operator control tasks. This unit features a 12-inch TFT display and is part of the MP 370 series, which bridges the gap between panel-level HMI and PC-based visualization. It is engineered for integration into Siemens automation environments, particularly those built around SIMATIC S7 controllers.

The MP 370 panel is equipped with a high-resolution 12-inch TFT color display with a resolution of 800 x 600 pixels (SVGA), supporting up to 256 colors. It offers both touch screen and key-based operation, providing flexibility in operator interaction. Communication interfaces include MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling connectivity to a wide range of Siemens PLCs and network infrastructures. The panel runs on Windows CE and is configurable using Siemens WinCC flexible engineering software. Onboard memory includes Flash memory for project storage, and the unit supports CF card expansion for additional data logging and recipe management.

The SIMATIC MP 370 is widely deployed in manufacturing, process automation, and machine tool industries where robust and reliable HMI solutions are required. Its combination of touch and key operation makes it suitable for environments where operators may be wearing gloves or working in demanding conditions. The panel is commonly found in applications such as packaging machinery, press lines, conveyor systems, and general factory automation where a mid-size, high-performance visualization solution is needed.

Technical Specifications

Display Size	12 inch
Display Resolution	800 x 600 pixels (SVGA)
Display Type	TFT color
Display Colors	256 colors
Touch Technology	Resistive touch screen with function keys
Operating System	Windows CE
Input/Operating Voltage	24 V DC
Power Consumption	Max. 30 W
Communication Interface	MPI, PROFIBUS DP, Ethernet (TCP/IP), RS-422/485
Memory	12 MB Flash (internal), CF card slot for expansion
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, cUL
Series/Product Family	SIMATIC 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 or Ethernet cable connections and termination resistors. Verify PLC address settings match the HMI project configuration. Restart both PLC and HMI panel.
Event ID: 10001: Connection to PLC interrupted during runtime. The HMI lost communication with the configured controller.
Inspect physical wiring and connectors. Check for address conflicts on the bus. Verify the PLC is in RUN mode and the network configuration is correct.
Event ID: 20000: Project download error. The project could not be transferred to the panel successfully.
Ensure the correct transfer cable or network connection is used. Verify WinCC flexible version compatibility with the panel firmware. Check available Flash memory on the device.
Event ID: 40000: System memory low. Available runtime memory is insufficient for the current project.
Reduce the number of active alarms, trends, or recipe entries in the project. Optimize the project in WinCC flexible to reduce memory usage.
Event ID: 50000: CF card error. The CompactFlash card inserted in the panel cannot be read or is not recognized.
Remove and reinsert the CF card. Format the CF card using the panel's Control Panel utility. Replace the CF card if the error persists.
Event ID: 70000: Firmware update error. The firmware update process was interrupted or failed to complete.
Retry the firmware update using the correct firmware version for the MP 370 panel. Ensure stable power supply during the update process. Use the Siemens ProSave tool for firmware transfer.
Event ID: 30000: Tag update cycle exceeded. The HMI system is unable to update all configured tags within the defined cycle time.
Increase the tag update cycle time in WinCC flexible. Reduce the number of tags being polled simultaneously. Check for excessive communication load on the bus.

Frequently Asked Questions

What engineering software is required to configure the SIMATIC MP 370 (6AV6446-1AA41-2AB3)?

The MP 370 is configured using Siemens WinCC flexible software. The appropriate version must be used to ensure compatibility with the panel firmware version installed on the device.

What communication interfaces are available on this panel?

The 6AV6446-1AA41-2AB3 supports MPI, PROFIBUS DP, Ethernet (TCP/IP), and RS-422/485 interfaces, allowing connectivity to SIMATIC S7 PLCs and other compatible controllers.

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 connections, and also supports Ethernet-based communication to S7 controllers equipped with appropriate communication modules.

Can the CF card slot be used for data logging and recipe storage?

Yes, the CompactFlash card slot on the MP 370 can be used to store project data, log process values, and manage recipes, providing expanded storage beyond the internal Flash memory.

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

The front panel of the MP 370 achieves an IP65 protection rating when correctly installed in a panel cutout, making it suitable for environments with dust and water spray exposure.

Troubleshooting

Display remains blank after power on

Measure the 24 V DC supply voltage at the power connector. Check that the voltage 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

Check whether the touch screen is physically damaged or contaminated. Attempt to recalibrate the touch screen via the panel's Control Panel settings in Windows CE.

Clean the touch screen surface with a soft, dry cloth. Recalibrate the touch screen using the built-in calibration utility. If inaccuracy persists after calibration, the touch screen overlay may need to be replaced.

Panel fails to establish communication with the PLC

Verify the MPI or PROFIBUS address configured in the HMI project matches the physical settings on the PLC. Check cable integrity and bus termination at both ends of the network.

Correct any address mismatches in the WinCC flexible project. Replace damaged communication cables. Ensure proper bus termination resistors are installed at the network endpoints. Reload the project to the panel after making corrections.

Panel continuously reboots or freezes during operation

Check for corrupted project data on the internal Flash memory or CF card. Monitor the 24 V DC supply for voltage drops or instability that could cause unexpected resets.

Re-transfer the project from WinCC flexible to the panel to overwrite potentially corrupted data. Ensure the power supply is stable and adequately rated. If the issue persists, perform a factory reset via the panel's loader menu and reload the firmware and project.

CF card not recognized by the panel

Inspect the CF card slot for bent pins or debris. Test the CF card in a PC card reader to verify it is functional and correctly formatted.

Clean the CF card slot carefully. Format the CF card as FAT16 using the panel's Control Panel or a PC. Replace the CF card if it is not recognized after formatting. Ensure the CF card capacity is within the supported range for the MP 370.

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