Siemens 6AV6446-1CA41-0BA5 SIMATIC MP 370

Name: Siemens 6AV6446-1CA41-0BA5 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-1CA41-0BA5
Price: 2495.00 EUR
Availability: InStock

€ 2.495,00

Condition

Clear

SKU: 6AV6446-1CA41-0BA5 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-1CA41-0BA5 is a Multi Panel (MP 370) belonging to the SIMATIC HMI product family. It is a high-performance operator panel designed for demanding visualization and control tasks in industrial automation environments. This unit features a 12-inch TFT display and operates as a standalone HMI device capable of running WinCC flexible runtime applications.

The MP 370 (6AV6446-1CA41-0BA5) is equipped with a resistive touchscreen and supports multiple communication interfaces including MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling integration with a wide range of Siemens SIMATIC S7 controllers and third-party systems. It runs on Microsoft Windows CE, providing a stable embedded operating system platform. The panel offers substantial onboard flash memory and supports external storage via CompactFlash cards for project data, recipes, and data logging. The display delivers a resolution of 800 x 600 pixels (SVGA) with 256 colors, ensuring clear process visualization.

The SIMATIC MP 370 is widely deployed in machine building, automotive manufacturing, food and beverage processing, and water treatment facilities where robust and reliable HMI solutions are required. Its combination of touch operation, broad communication capability, and compatibility with the SIMATIC S7 controller family makes it suitable for complex SCADA-level visualization tasks at the machine or cell level. The panel is designed for panel mounting and is rated for continuous operation in industrial environments.

Technical Specifications

Display Size	12 inch
Display Resolution	800 x 600 pixels (SVGA)
Display Colors	256 colors
Display Type	TFT LCD
Touch Technology	Resistive touchscreen
Operating System	Microsoft Windows CE
Input/Operating Voltage	24 V DC
Power Consumption	Approx. 30 W
Communication Interface	MPI, PROFIBUS DP, Ethernet (TCP/IP), RS-422/485
External Storage	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: 1000: System startup completed successfully; HMI runtime has initialized.
Informational only. No action required. Verify project loads correctly after startup.
Event ID: 10000: Connection to PLC lost or communication timeout on configured connection.
Check MPI/PROFIBUS/Ethernet cabling and termination resistors. Verify PLC is powered and address settings match the project configuration.
Event ID: 10001: Communication error on a configured PLC connection; tags cannot be read or written.
Verify communication parameters (baud rate, station address, subnet) in WinCC flexible match the PLC configuration. Check physical cable integrity.
Event ID: 20000: Project download failed or project file is corrupt.
Re-transfer the project from the engineering PC using WinCC flexible. Ensure the WinCC flexible version matches the panel firmware version.
Event ID: 40000: Insufficient memory for runtime operation; memory limit reached.
Reduce project size, limit the number of active alarms or data logs, or transfer project data to a CompactFlash card to free internal memory.
Event ID: 50000: Firmware update error; update process was interrupted or firmware file is incompatible.
Restart the panel in transfer mode and re-apply the correct firmware version using ProSave or WinCC flexible. Ensure power is stable during update.
Event ID: 60000: Recipe data error; recipe record cannot be read from or written to storage.
Check CompactFlash card for errors or replace it. Verify recipe configuration in the project and re-download if necessary.
Event ID: 70000: Screen saver or backlight timeout has activated; display appears blank.
Touch the screen or press a key to reactivate the display. Adjust screen saver settings in the panel Control Panel if the timeout is too short.

Frequently Asked Questions

What communication interfaces does the 6AV6446-1CA41-0BA5 support?

The MP 370 supports MPI, PROFIBUS DP, Ethernet (TCP/IP), and RS-422/485 serial interfaces, allowing connection to SIMATIC S7-300, S7-400, and other compatible controllers.

Which engineering software is required to configure this panel?

The panel is configured using Siemens WinCC flexible (standard or advanced edition). The project is then transferred to the panel via Ethernet, MPI, or USB using the ProSave tool or directly from WinCC flexible.

What is the supply voltage for the MP 370?

The panel requires a 24 V DC supply voltage. Ensure the power source is stable and within the specified tolerance range to prevent operational issues.

Can the MP 370 be used with SIMATIC S7-1200 or S7-1500 controllers?

The MP 370 uses WinCC flexible for configuration, which has limited compatibility with S7-1200 and S7-1500. For these newer controllers, Siemens recommends using TIA Portal-based panels such as the Comfort Panel series.

Is it possible to expand storage on this panel?

Yes, the MP 370 supports CompactFlash cards for additional storage, which can be used for project data, recipe files, data logs, and backups.

Troubleshooting

Display remains blank after power is applied

Check the 24 V DC supply voltage at the power connector. Verify the supply is within tolerance. Check whether the backlight has simply timed out due to the screen saver setting.

Restore correct 24 V DC supply if voltage is out of range. If the backlight has timed out, touch the screen to wake it. If the backlight is permanently failed, the panel will require backlight or display unit replacement.

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 panel and the PLC. Check cable connections, termination resistors at both ends of the bus, and cable integrity.

Correct any address mismatches in WinCC flexible and re-download the project. Replace damaged cables and ensure proper bus termination. Confirm the PLC is powered and in RUN mode.

Project transfer from engineering PC fails

Check the transfer connection (Ethernet or MPI cable). Ensure the panel is set to Transfer mode (accessible via the Start Center on the panel). Verify the WinCC flexible version is compatible with the panel firmware.

Place the panel in Transfer mode manually via the Start Center. Update the panel firmware using ProSave if there is a version mismatch. Check firewall settings on the PC if using Ethernet transfer.

Touchscreen does not respond accurately or is misaligned

The resistive touchscreen may require recalibration, especially after a firmware update or if the panel has been exposed to temperature extremes.

Access the Control Panel on the Windows CE desktop and run the touchscreen calibration utility. Follow the on-screen prompts to recalibrate the touch input accurately.

Panel repeatedly restarts or crashes during runtime

Check available internal memory and CPU load. A corrupt project file or incompatible firmware version can also cause instability. Review the system event log for specific Event IDs.

Re-download a freshly compiled project from WinCC flexible. Update the panel firmware to the latest compatible version using ProSave. If instability persists, perform a factory reset and re-commission the panel.

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