Siemens 6AV6446-1AA41-0AB3 SIMATIC MP 370

Name: Siemens 6AV6446-1AA41-0AB3 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-1AA41-0AB3
Price: 4076.00 EUR
Availability: InStock

€ 4.076,00

Condition

Clear

SKU: 6AV6446-1AA41-0AB3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-1AA41-0AB3 is a Multi Panel (MP 370) belonging to the SIMATIC HMI family, designed for high-performance human-machine interface applications in industrial automation environments. This panel features a 12-inch TFT display and is part of Siemens' advanced operator panel series, offering robust visualization and control capabilities. It is engineered to integrate seamlessly with Siemens SIMATIC S7 and S5 controller families as well as third-party PLCs.

The MP 370 (6AV6446-1AA41-0AB3) is equipped with a 12.1-inch TFT color display with a resolution of 800 x 600 pixels (SVGA) and supports touch screen operation. It runs on Windows CE and provides multiple communication interfaces including MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling flexible integration into existing network architectures. The panel includes onboard memory for project storage and supports CompactFlash cards for extended data logging and project backup. It operates on a 24 V DC supply and meets industrial protection requirements with an IP65 rating on the front panel.

The SIMATIC MP 370 is widely deployed in manufacturing, process automation, automotive production, and machine tool industries where a reliable and feature-rich operator interface is required. Its large display area and multi-functionality make it suitable for complex SCADA-style visualization tasks at the machine level. The panel's compatibility with a broad range of Siemens and third-party controllers makes it a versatile choice for both OEM machine builders and end-user plant installations.

Technical Specifications

Display Size	12.1 inch
Display Resolution	800 x 600 pixels (SVGA)
Display Colors	256 colors (TFT)
Touch Technology	Resistive touch screen
Input/Operating Voltage	24 V DC
Power Consumption	Approx. 35 W
IP/Protection Rating	IP65 (front panel)
Communication Interface	MPI, PROFIBUS DP, Ethernet (TCP/IP), RS-232, RS-422/485
Operating System	Windows CE
Memory	12 MB user memory (onboard); CompactFlash card slot
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
Relative Humidity	10% to 90% (non-condensing)
Mounting	Panel mounting (portrait or landscape)
Certifications	CE, UL, cUL
Series/Product Family	SIMATIC HMI Multi Panel MP 370

Common Error Codes & System Events

Event ID: 10000: Communication error between the HMI panel and the connected PLC or controller.
Check MPI/PROFIBUS/Ethernet cable connections and termination resistors. Verify the configured PLC address matches the actual controller address. Restart both the panel and the PLC.
Event ID: 10001: Connection to the PLC was interrupted during runtime.
Inspect communication cables for damage. Verify network configuration parameters in WinCC flexible. Check PLC program is running and not in STOP mode.
Event ID: 20000: Project download failed or project data is corrupted.
Re-download the project from the engineering station using WinCC flexible. Ensure sufficient free memory on the panel. Check USB or Ethernet transfer connection.
Event ID: 40000: Tag value is outside the configured limit range.
Check the process value being written to the tag. Verify limit settings in the WinCC flexible project configuration. Inspect the connected sensor or actuator for correct operation.
Event ID: 50000: Recipe data transfer error between HMI and PLC.
Verify recipe configuration in WinCC flexible. Check that the PLC data blocks referenced by the recipe are correctly defined and accessible. Re-transfer the recipe data.
Event ID: 70000: System memory low warning — available panel memory is critically low.
Delete unused project data, log files, and archived records from the panel. Consider using a larger CompactFlash card for data storage. Optimize the WinCC flexible project to reduce memory usage.
Event ID: 110000: Printer communication error — configured printer is not responding.
Check printer cable connections and printer power status. Verify printer driver settings in the panel system configuration. Restart the panel and printer.

Frequently Asked Questions

What engineering software is required to program the SIMATIC MP 370?

The MP 370 is configured using Siemens WinCC flexible engineering software. Projects created with WinCC flexible can be transferred to the panel via Ethernet, USB, or MPI connection.

What communication protocols does the 6AV6446-1AA41-0AB3 support?

This panel supports MPI, PROFIBUS DP, Ethernet TCP/IP, RS-232, and RS-422/485 interfaces, allowing connectivity to a wide range of Siemens and third-party controllers.

Is the MP 370 compatible with SIMATIC S7-300 and S7-400 PLCs?

Yes, the MP 370 natively supports SIMATIC S7-300 and S7-400 PLCs via MPI or PROFIBUS DP, and also supports S7 communication over Ethernet where applicable.

What is the front panel protection rating of this HMI?

The front panel of the MP 370 carries an IP65 protection rating, making it suitable for installation in environments with dust and water spray exposure.

Can the MP 370 store data logs and recipes on external media?

Yes, the panel includes a CompactFlash card slot that can be used for extended data logging, recipe storage, and project backup, supplementing the onboard user memory.

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 power supply is stable and within specification. If the supply is correct but 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 is misaligned

Attempt to recalibrate the touch screen via the panel's Start Center or Control Panel settings. Check for physical damage or contamination on the touch surface.

Perform a touch screen recalibration through the Windows CE Control Panel. Clean the screen surface with a soft, dry cloth. If recalibration fails repeatedly, the touch screen digitizer may need replacement.

Panel fails to communicate with the PLC

Verify the MPI or PROFIBUS address configured in WinCC flexible matches the PLC address. Check cable connections, terminating resistors, and cable integrity using a bus diagnostic tool.

Correct any address mismatches in the WinCC flexible project and re-download. Replace damaged communication cables. Ensure bus termination is correctly applied at both ends of the PROFIBUS or MPI network.

Project download from engineering PC fails

Check the transfer connection (Ethernet or MPI cable) between the PC and the panel. Ensure the panel is in Transfer mode via the Start Center. Verify WinCC flexible version compatibility.

Switch the panel to Transfer mode manually via the Start Center menu. Use a known-good cable and verify network or MPI settings. Ensure the WinCC flexible version used matches the panel's firmware version.

Panel reboots unexpectedly during operation

Check the 24 V DC supply for voltage dips or instability using a multimeter or oscilloscope. Review system event logs on the panel for recorded fault events prior to the reboot.

Install a stable, adequately rated 24 V DC power supply. Suppress voltage spikes using appropriate filtering. If reboots persist with a stable supply, the panel may have a hardware fault requiring inspection and repair.

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