Siemens 6AV6446-1CA41-2BB5 SIMATIC MP 370

Name: Siemens 6AV6446-1CA41-2BB5 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-1CA41-2BB5
Price: 1995.00 EUR
Availability: InStock

€ 1.995,00

Condition

Clear

SKU: 6AV6446-1CA41-2BB5 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-1CA41-2BB5 is a Multi Panel (MP 370) belonging to the SIMATIC HMI family, designed for demanding machine-level visualization and operator control tasks. This panel features a 15-inch TFT display and is part of Siemens' high-performance Multi Panel series, which bridges the gap between standard operator panels and full PC-based systems. It is intended for use as a stationary operator interface in industrial automation environments.

The MP 370 (6AV6446-1CA41-2BB5) is equipped with a 15-inch TFT color display with a resolution of 1024 x 768 pixels (XGA), supporting 64,000 colors for clear process visualization. It features a resistive touch screen interface and is powered by a 24 V DC supply. The panel runs WinCC flexible runtime software and supports communication via PROFIBUS DP and MPI interfaces, enabling direct integration with Siemens S7-300 and S7-400 PLCs. Onboard memory includes Flash memory for project storage, and the unit provides USB and CF card slots for data transfer and project backup.

The SIMATIC MP 370 is widely deployed in machine building, automotive manufacturing, process industries, and packaging machinery where a large, high-resolution display is required for complex process visualization. Its robust industrial housing, wide operating temperature range, and compatibility with the SIMATIC automation ecosystem make it suitable for continuous operation in demanding factory floor environments. The panel is configurable using Siemens WinCC flexible engineering software, allowing integration into both new installations and retrofits of existing SIMATIC-based control systems.

Technical Specifications

Display Size	15 inch
Display Resolution	1024 x 768 pixels (XGA)
Display Colors	64,000 colors
Display Type	TFT LCD
Touch Technology	Resistive touch screen
Input Voltage	24 V DC
Power Consumption	Approx. 50 W
Communication Interface	PROFIBUS DP, MPI, RS-422/485
Additional Interfaces	2x USB, 1x CF card slot, 1x Ethernet (optional)
Operating System	Windows CE
Runtime Software	WinCC flexible Runtime
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
IP Rating (Front)	IP65
Mounting	Panel mounting
Certifications	CE, UL, cULus

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 PROFIBUS/MPI cable connections and termination resistors. Verify the PLC address settings match the HMI project configuration. Ensure the PLC is in RUN mode.
Event ID: 10001: Connection to PLC interrupted during runtime. The HMI panel lost communication with the configured controller.
Inspect physical cabling for damage. Check bus termination and cable shielding. Restart both the HMI panel and the PLC and monitor for recurrence.
Event ID: 20000: Project download error. The project could not be transferred to the HMI panel successfully.
Verify the transfer cable or network connection between the engineering PC and the HMI. Ensure sufficient free memory on the panel. Retry the download using WinCC flexible.
Event ID: 40000: System memory low. Available runtime memory on the panel is insufficient for the loaded project.
Reduce the number of active screens or logged variables. Archive or delete old data log files from the CF card. Consider optimizing the project in WinCC flexible.
Event ID: 50000: Tag read/write error. A configured tag could not be read from or written to the PLC.
Verify the tag address in the WinCC flexible project matches the actual PLC data block or memory address. Check PLC program for address conflicts.
Event ID: 60000: Backup/restore error. A project backup or restore operation via CF card or USB failed.
Check that the CF card or USB device is properly inserted and not write-protected. Ensure the storage medium has sufficient free space and is formatted correctly (FAT32).
Event ID: 70000: Screen saver or display fault. The display backlight has failed or the screen saver has activated unexpectedly.
Check the configured screen saver timeout in the panel settings. If the backlight has failed, the panel may require backlight or inverter replacement.

Frequently Asked Questions

Which PLCs are compatible with the SIMATIC MP 370 (6AV6446-1CA41-2BB5)?

The MP 370 is compatible with Siemens SIMATIC S7-300, S7-400, and S7-200 PLCs via MPI or PROFIBUS DP interfaces. It can also communicate with other controllers supported by WinCC flexible drivers.

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

The panel is configured using Siemens WinCC flexible engineering software. The appropriate version must be used to match the WinCC flexible Runtime version installed on the panel.

What is the display size and resolution of the 6AV6446-1CA41-2BB5?

This panel features a 15-inch TFT color display with a resolution of 1024 x 768 pixels (XGA) and supports 64,000 colors.

What memory expansion options are available on this panel?

The MP 370 includes a CompactFlash (CF) card slot for project storage and data logging expansion, as well as USB ports for data transfer and peripheral connection.

What is the supply voltage for the SIMATIC MP 370?

The panel operates on a 24 V DC supply voltage, which is standard for SIMATIC HMI devices in industrial cabinet installations.

Troubleshooting

Display remains blank after power on

Measure the 24 V DC supply voltage at the power connector on the rear of the panel. Check for blown internal fuses. Observe whether the panel emits any startup sounds or LED indicators illuminate.

Ensure the 24 V DC supply is stable and within tolerance. If the supply is correct but the display remains blank, the backlight inverter or the display itself may have failed and will require replacement.

HMI panel fails to communicate with the S7 PLC via MPI or PROFIBUS

Check the physical cable connections at both the panel and PLC ends. Verify bus termination is active only at both ends of the bus segment. Confirm the MPI/PROFIBUS address configured in the HMI project matches the actual PLC address.

Replace or reseat the MPI/PROFIBUS cable. Correct any address mismatches in the WinCC flexible project and reload the project to the panel. Ensure only the correct nodes have bus termination enabled.

Touch screen does not respond or responds inaccurately

Attempt to recalibrate the touch screen via the panel's Control Panel settings (accessible during startup or via the Start menu in Windows CE). Check for physical damage or contamination on the screen surface.

Perform a touch screen recalibration through the Windows CE Control Panel. Clean the screen surface with a soft, dry cloth. If calibration does not resolve the issue, the touch screen overlay may require replacement.

Project cannot be downloaded to the panel from the engineering PC

Verify the transfer connection type (USB, Ethernet, or serial) is correctly configured in both WinCC flexible and the panel's Transfer settings. Check that the panel is set to Transfer mode.

Switch the panel to Transfer mode via the panel's Start Center. Confirm the correct interface and baud rate are selected in WinCC flexible. If using USB, ensure the appropriate Siemens USB driver is installed on the engineering PC.

Panel restarts repeatedly or crashes during runtime

Check the CF card for errors or insufficient space, as a full or corrupted CF card can cause runtime instability. Review the system event log on the panel for specific event IDs indicating the cause of the restart.

Replace or reformat the CF card and reload the project. Ensure the WinCC flexible project does not exceed the panel's memory limits. If the issue persists, perform a factory reset and reinstall the runtime software using the Siemens restore image.

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