Siemens 6AV6446-1AA40-0BA4 SIMATIC MP 370

Name: Siemens 6AV6446-1AA40-0BA4 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-1AA40-0BA4
Price: 2495.00 EUR
Availability: InStock

€ 2.495,00

Condition

Clear

SKU: 6AV6446-1AA40-0BA4 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-1AA40-0BA4 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 MP 370 series, which provides a high-performance platform for process visualization, machine monitoring, and operator interaction. It is manufactured by Siemens and represents a robust, panel-mount human-machine interface solution.

The MP 370 (6AV6446-1AA40-0BA4) is equipped with a 12-inch TFT color display with a resolution of 800 x 600 pixels (SVGA) and supports touch screen operation. It runs on WinCC flexible runtime software and offers communication interfaces including MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling integration with a wide range of Siemens SIMATIC S7 controllers as well as third-party systems. The panel includes 64 MB of RAM and 32 MB of Flash memory, and operates on a 24 V DC supply voltage, providing a reliable and responsive interface for complex visualization projects.

The SIMATIC MP 370 is widely used in manufacturing, process industries, automotive production, and machine building applications where a large, high-resolution display and flexible communication options are required. Its compatibility with SIMATIC S7-300 and S7-400 PLCs makes it a standard choice for system integrators working within the Siemens automation ecosystem. The panel is suited for applications demanding continuous operation in industrial environments, including packaging machinery, conveyor systems, and process control panels.

Technical Specifications

Display Size	12 inch
Display Resolution	800 x 600 pixels (SVGA)
Display Colors	64,000 colors
Touch Technology	Resistive touch screen
Input/Operating Voltage	24 V DC
Power Consumption	Approx. 30 W
RAM	64 MB
Flash Memory	32 MB
Communication Interface	MPI, PROFIBUS DP, Ethernet (TCP/IP), RS-422/485
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
Series/Product Family	SIMATIC MP 370
Certifications	CE, UL, cULus

Common Error Codes & System Events

Event ID: 10000: Connection to PLC lost or communication timeout detected between the MP 370 and the configured controller.
Check MPI/PROFIBUS or Ethernet cable connections and verify PLC address settings in WinCC flexible. Ensure the PLC is powered and running.
Event ID: 10001: Tag read error — the panel is unable to read a configured tag from the connected controller.
Verify the tag address and data type configuration in WinCC flexible. Check that the PLC program contains the referenced data block or variable.
Event ID: 20000: Project download error — the project transfer from the engineering PC to the panel failed.
Check the transfer cable or network connection. Ensure the panel is in transfer mode and that the correct communication interface is selected in WinCC flexible Transfer settings.
Event ID: 40000: System memory low — available runtime memory on the panel is insufficient for the loaded project.
Reduce the number of active screens, images, or logged data in the project. Consider archiving or deleting old data logs stored on the panel.
Event ID: 50000: Internal device error or hardware fault detected during panel self-test at startup.
Perform a panel reset by cycling power. If the error persists, back up the project and perform a factory reset. Contact Siemens technical support if the fault recurs.
Event ID: 70000: Recipe data error — inconsistency or corruption detected in recipe records stored on the panel.
Delete and re-download the affected recipe data from the engineering system. Check the storage medium (Flash) for errors.
Event ID: 30000: Screen object configuration error — a configured screen object references an invalid or missing tag or resource.
Review the project in WinCC flexible for missing tag references or deleted objects. Recompile and re-download the project to the panel.

Frequently Asked Questions

Which PLCs are compatible with the SIMATIC MP 370 (6AV6446-1AA40-0BA4)?

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 Ethernet-based communication with S7-300/400 and can be configured for third-party controllers using WinCC flexible drivers.

What software is required to program and configure this panel?

The MP 370 is configured using Siemens WinCC flexible (2004 or later versions). Projects are created on an engineering PC and transferred to the panel via MPI, PROFIBUS, or Ethernet.

What is the display type and resolution of the 6AV6446-1AA40-0BA4?

This panel features a 12-inch TFT color display with a resolution of 800 x 600 pixels (SVGA) and supports 64,000 colors with resistive touch screen input.

What is the supply voltage for the MP 370?

The MP 370 operates on a 24 V DC supply voltage. Ensure the power supply is stable and within the specified tolerance range to avoid operational issues.

Can the MP 370 communicate over Ethernet?

Yes, the 6AV6446-1AA40-0BA4 supports Ethernet (TCP/IP) communication in addition to MPI and PROFIBUS DP, allowing integration with network-based automation architectures.

Troubleshooting

Display remains blank after power on

Check that 24 V DC is present at the power supply terminals. Verify the power supply connector is fully seated. Measure voltage at the panel input terminals.

If voltage is correct and the display remains blank, the internal backlight or power supply board may have failed. Replace the backlight unit or have the panel repaired by a qualified technician.

Touch screen does not respond or responds inaccurately

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

Perform a touch screen calibration from the panel's operating system settings. If calibration does not resolve the issue, the resistive touch overlay may be worn or damaged and requires replacement.

Panel fails to establish communication with the PLC

Verify the MPI or PROFIBUS address configured on the panel matches the network settings. Check cable integrity and termination resistors on the PROFIBUS network.

Correct any address mismatches in WinCC flexible and re-download the project. Replace faulty communication cables and ensure proper bus termination at both ends of the PROFIBUS segment.

Project transfer from PC to panel fails repeatedly

Confirm the panel is set to Transfer mode via the Start Center. Check that the correct communication interface (MPI, PROFIBUS, or Ethernet) is selected in WinCC flexible Transfer settings.

Restart the panel in Transfer mode and retry the download. If using Ethernet, verify IP address settings on both the PC and panel. Try an alternative transfer cable or interface if the problem persists.

Panel reboots unexpectedly during operation

Check the 24 V DC supply for voltage dips or instability under load. Inspect the power supply unit and wiring for loose connections or undersized cabling.

Install a stable, adequately rated 24 V DC power supply. Ensure all wiring connections are secure and the supply voltage remains within the specified tolerance. If reboots continue, check for project-related memory issues and reduce runtime load.

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