Siemens 6AV6446-1AA40-0BA5 SIMATIC MP 370

Name: Siemens 6AV6446-1AA40-0BA5 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-1AA40-0BA5
Price: 2495.00 EUR
Availability: InStock

€ 2.495,00

Condition

Clear

SKU: 6AV6446-1AA40-0BA5 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-1AA40-0BA5 is a Multi Panel (MP 370) belonging to the SIMATIC HMI family, designed for demanding visualization and operator control tasks in industrial automation environments. This panel features a 12-inch TFT display and is part of the SIMATIC MP 370 series, which provides high-performance human-machine interface functionality for process and machine visualization. It is manufactured by Siemens and operates within the broader SIMATIC HMI product line.

The MP 370 panel is equipped with a 12-inch TFT color display with a resolution of 800 x 600 pixels (SVGA), supporting 256 colors. It features a touch screen interface and can be configured with an MPI/PROFIBUS DP interface for direct connection to SIMATIC S7 PLCs, as well as Ethernet connectivity for network integration. The panel runs on WinCC flexible runtime software, supports multiple communication drivers, and provides a robust industrial-grade enclosure rated to IP65 on the front face. Internal memory supports project storage and runtime data logging.

The SIMATIC MP 370 is widely used in machine building, automotive manufacturing, food and beverage processing, and chemical plant automation. Its large display area and touch operation make it suitable for complex process visualization, recipe management, alarm logging, and trend display applications. The panel is particularly well suited for installations requiring a robust, panel-mount HMI with direct PLC connectivity and network communication capabilities.

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
Input/Operating Voltage	24 V DC
Power Consumption	Approx. 30 W
Communication Interface	MPI/PROFIBUS DP, Ethernet (RJ45)
IP/Protection Rating	IP65 (front), IP20 (rear)
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
Relative Humidity	10% to 90% (non-condensing)
Mounting	Panel mounting
Series/Product Family	SIMATIC MP 370
Certifications	CE, UL, cUL

Common Error Codes & System Events

Event ID: 1000001: System startup completed successfully. The HMI runtime has initialized without errors.
No action required. This is an informational event confirming normal startup.
Event ID: 1000002: Connection to PLC lost. The HMI panel cannot establish or maintain communication with the configured PLC.
Check MPI/PROFIBUS DP or Ethernet cable connections. Verify PLC address settings and communication parameters in WinCC flexible. Ensure the PLC is powered and in RUN mode.
Event ID: 1000003: Tag read error. A configured tag could not be read from the PLC within the timeout period.
Verify the tag address exists in the PLC program. Check communication connection and PLC data block configuration. Reload the project if necessary.
Event ID: 1000004: Project download error. A project transfer to the panel was interrupted or failed.
Check the transfer cable or network connection. Ensure WinCC flexible is configured with the correct panel type and transfer settings. Retry the download.
Event ID: 1000005: Insufficient memory. The panel does not have enough free memory to load or run the current project.
Delete unused projects or data logs from the panel memory. Optimize the project size in WinCC flexible and reduce the number of stored alarms or recipe records.
Event ID: 1000006: Alarm buffer overflow. The alarm log has reached its maximum capacity.
Acknowledge and clear pending alarms. Archive or export the alarm log and clear the buffer via the panel's system settings.
Event ID: 1000007: Screen saver activated. The display has entered screen saver mode due to inactivity.
Touch the screen or press any key to deactivate the screen saver. Adjust the screen saver timeout in the panel's system settings if required.
Event ID: 1000008: Backup battery low. The internal backup battery voltage is below the minimum threshold.
Replace the internal backup battery as soon as possible to prevent loss of time, date, and retained data. Use the Siemens-specified replacement battery type.

Frequently Asked Questions

What PLC systems is the SIMATIC MP 370 compatible with?

The MP 370 is primarily designed for use with Siemens SIMATIC S7-300 and S7-400 PLCs via MPI or PROFIBUS DP. It also supports communication with S5 PLCs and third-party controllers through additional communication drivers available in WinCC flexible.

What software is used to configure the MP 370 panel?

The MP 370 is configured using Siemens WinCC flexible engineering software. Projects are created on a PC and transferred to the panel via MPI, PROFIBUS DP, or Ethernet.

What is the supply voltage for the 6AV6446-1AA40-0BA5?

The panel operates on 24 V DC supply voltage, which is the standard supply for SIMATIC HMI panels in this series.

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

The front face of the MP 370 panel is rated IP65, making it resistant to dust ingress and low-pressure water jets, suitable for industrial panel-mount installations.

Can the MP 370 be used for data logging and recipe management?

Yes, the MP 370 supports data logging, recipe management, alarm logging, and trend display functions through the WinCC flexible runtime environment.

Troubleshooting

Display remains blank after power on

Check that 24 V DC supply voltage is present at the power connector. Verify polarity and measure voltage with a multimeter. Check internal fuse if accessible.

Ensure the 24 V DC supply is within tolerance. Replace the supply fuse if blown. If the supply is correct and the display remains blank, the internal power supply or backlight inverter may require replacement.

Touch screen does not respond or responds inaccurately

Determine whether the issue is a complete lack of response or positional inaccuracy. Check for physical damage or contamination on the touch surface.

Recalibrate the touch screen via the panel's Start Center or system settings. Clean the touch surface with a soft, dry cloth. If calibration does not resolve the issue, the touch screen overlay may need replacement.

Communication loss with PLC (connection drops intermittently)

Check MPI or PROFIBUS DP cable connections and termination resistors at both ends of the bus. Verify bus address settings and baud rate configuration on both the panel and PLC.

Replace or reseat communication cables. Ensure correct bus termination is applied. Verify that the panel's MPI/PROFIBUS address does not conflict with other devices on the network. Update communication parameters in WinCC flexible if necessary.

Project transfer fails during download from PC

Verify the transfer cable type and connection. Check that the panel is in Transfer mode via the Start Center. Confirm that WinCC flexible is configured for the correct panel type and interface.

Switch the panel to Transfer mode manually from the Start Center. Use the correct MPI or Ethernet transfer settings in WinCC flexible. Try a different cable or network path. Ensure the PC firewall is not blocking the transfer.

Panel displays 'Offline' or cannot find configured tags

The runtime project may not be loaded, or the PLC connection configuration may be incorrect. Check the connection settings in WinCC flexible for correct PLC address and communication interface.

Reload the project to the panel. Verify PLC address, slot number, and rack number in the WinCC flexible connection settings. Confirm the PLC is powered and in RUN mode with the correct program loaded.

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