Siemens 6AV6446-1BA40-1BB4 SIMATIC MP 370

Name: Siemens 6AV6446-1BA40-1BB4 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-1BA40-1BB4
Price: 2995.00 EUR
Availability: InStock

€ 2.995,00

Condition

Clear

SKU: 6AV6446-1BA40-1BB4 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-1BA40-1BB4 is a Multi Panel (MP 370) belonging to the SIMATIC HMI product family from Siemens. It is a high-performance operator panel designed for demanding industrial human-machine interface applications, featuring a 12-inch TFT display. As part of the SIMATIC MP 370 series, this unit provides a versatile and robust platform for process visualization and machine control.

The MP 370 (6AV6446-1BA40-1BB4) 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 features multiple communication interfaces including PROFIBUS DP, MPI, and Ethernet (TCP/IP), enabling integration with a wide range of Siemens SIMATIC S7 PLCs and third-party controllers. The panel runs on Windows CE and supports WinCC flexible runtime software, providing a powerful environment for complex visualization projects with extensive tag counts and screen objects.

The SIMATIC MP 370 is widely used in manufacturing, automotive, chemical processing, and water treatment industries where a robust and feature-rich HMI is required. Its combination of touch input, multiple communication protocols, and Windows CE-based runtime makes it suitable for complex machine control panels, process control stations, and supervisory visualization systems that demand reliable long-term operation in industrial environments.

Technical Specifications

Display Size	12.1 inch
Display Resolution	800 x 600 pixels (SVGA)
Display Colors	256 colors
Touch Technology	Resistive touch screen
Input/Operating Voltage	24 V DC
Power Consumption	Max. 30 W
Communication Interface	PROFIBUS DP, MPI, Ethernet (TCP/IP), RS-422/RS-485
Operating System	Windows CE
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
Relative Humidity	10% to 90% (non-condensing)
IP/Protection Rating	IP65 (front panel)
Mounting	Panel mounting
Certifications	CE, UL, cULus
Series/Product Family	SIMATIC MP 370

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 interrupted.
Check physical connections on PROFIBUS/MPI/Ethernet interface. Verify PLC is powered and running. Check communication parameters (address, baud rate) in WinCC flexible project match PLC configuration.
Event ID: 10001: Connection to PLC timed out. The HMI did not receive a response from the controller within the configured timeout period.
Verify network cabling and connectors. Check PLC CPU is in RUN mode. Increase timeout value in HMI connection settings if network latency is high.
Event ID: 20000: Tag read error. A configured tag could not be read from the PLC, possibly due to an incorrect address or data type mismatch.
Verify the tag address in the WinCC flexible project matches the actual PLC data block or memory area. Check data type consistency between HMI tag and PLC variable.
Event ID: 40000: Project download error. Transfer of the WinCC flexible project to the panel failed or was interrupted.
Check USB or Ethernet transfer cable. Ensure the panel is in Transfer mode. Verify sufficient free memory on the panel. Retry the download from WinCC flexible.
Event ID: 50000: Runtime system error. The WinCC flexible runtime encountered an internal error and may have stopped or restarted.
Restart the panel. If the error persists, re-download the project. Check for corrupted project files and recompile the WinCC flexible project before transferring.
Event ID: 70000: Insufficient memory. The panel does not have enough free memory to load or execute the current project.
Reduce the number of screens, images, or tags in the project. Delete unused files from the panel memory. Consider archiving historical data to an external storage device.
Event ID: 30000: Script or function error. A configured VB script or function in the project encountered a runtime error during execution.
Review the VB script logic in WinCC flexible for errors. Check that all referenced tags and objects exist in the project. Enable script diagnostics in WinCC flexible to identify the specific line causing the error.

Frequently Asked Questions

Which PLCs are compatible with the SIMATIC MP 370 (6AV6446-1BA40-1BB4)?

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 controllers and can connect to third-party controllers via serial interfaces using appropriate drivers in WinCC flexible.

What software is required to configure and program the MP 370?

The MP 370 is configured using Siemens WinCC flexible software. The project is compiled in WinCC flexible and then transferred to the panel via USB, Ethernet, or MPI/PROFIBUS connection.

What is the supply voltage for the 6AV6446-1BA40-1BB4?

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

Does the MP 370 support remote access or monitoring?

Yes, the MP 370 supports remote monitoring and control via its Ethernet interface using Sm@rtAccess and Sm@rtService functions available in WinCC flexible, allowing remote HMI access from a PC over a network.

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

The front panel of the MP 370 carries an IP65 protection rating, making it resistant to dust ingress and water jets, suitable for installation in industrial control cabinet doors.

Troubleshooting

Display remains blank after power on

Check that 24 V DC is present at the power supply terminals. Measure voltage at the panel connector. Inspect the internal fuse if accessible.

Verify and restore the 24 V DC supply. If voltage is correct and display remains blank, the backlight or internal power supply board may be faulty and require replacement or professional repair.

Touch screen does not respond or responds inaccurately

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

Perform a touch screen recalibration via 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 need replacement.

HMI cannot establish communication with the PLC

Verify the communication cable connections on both the HMI and PLC sides. Check that the MPI or PROFIBUS address configured in the WinCC flexible project matches the PLC settings. Use a bus diagnostic tool to check network integrity.

Correct any address mismatches in the WinCC flexible project. Replace damaged cables or connectors. Ensure terminating resistors are correctly placed on the PROFIBUS network. Re-download the project after making corrections.

Panel repeatedly restarts or crashes during operation

Check for overheating by verifying ambient temperature is within the 0 to 50 °C operating range. Review the system event log in WinCC flexible for recurring error event IDs. Check power supply stability.

Improve ventilation around the panel. Ensure the power supply is stable and free of voltage spikes. Re-download the WinCC flexible project to rule out project corruption. If the issue persists, the panel hardware may require servicing.

Project transfer to panel fails

Confirm the panel is set to Transfer mode via the Start Center. Check the transfer cable (USB or Ethernet) for faults. Verify the PC firewall or antivirus is not blocking the WinCC flexible transfer connection.

Switch the panel to Transfer mode before initiating the download. Replace the transfer cable if faulty. Temporarily disable firewall or antivirus software on the PC. Ensure sufficient free storage memory is available on the panel before transfer.

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