Siemens 6AV6446-1BA40-0BA3 SIMATIC MP 370
€ 2.995,00
The Siemens 6AV6446-1BA40-0BA3 is a Multi Panel (MP 370) belonging to the SIMATIC HMI Multi Panel series, manufactured by Siemens. It is a high-performance operator panel designed for demanding visualization and control tasks in industrial automation environments. The MP 370 features a 12-inch TFT display and is part of the SIMATIC HMI product line, which integrates seamlessly with Siemens SIMATIC PLCs and automation systems.
The 6AV6446-1BA40-0BA3 variant 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 runs on the Windows CE operating system and is configurable using Siemens WinCC flexible engineering software. The panel provides multiple communication interfaces including MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling flexible integration into existing automation networks. It includes 12 MB of user memory for project data and supports USB ports for peripheral connectivity and data transfer.
The SIMATIC MP 370 is widely used in manufacturing, automotive, chemical processing, and food and beverage industries where robust and reliable HMI solutions are required. Its large display area and touch interface make it suitable for complex process visualization on machine control panels and production lines. The panel's compatibility with SIMATIC S7 PLCs and support for multiple communication protocols make it a versatile choice for both new installations and system upgrades.
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 | 30 W (typical) |
| Communication Interface | MPI, PROFIBUS DP, Ethernet (TCP/IP), RS-422/485 |
| Memory | 12 MB user memory |
| 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 HMI Multi Panel (MP 370) |
Common Error Codes & System Events
- Event ID: 10000
- Communication error between HMI panel and PLC. Connection to the configured controller cannot be established.
Check MPI/PROFIBUS or Ethernet cable connections. Verify PLC address settings and communication parameters in WinCC flexible project. Ensure PLC is in RUN mode. - Event ID: 10001
- Connection to PLC interrupted during operation. The HMI panel lost communication with the controller.
Inspect communication cables for damage. Check network topology and termination resistors on PROFIBUS. Restart both HMI and PLC if connection is not restored automatically. - Event ID: 20000
- Project download error. Transfer of the WinCC flexible project to the panel failed.
Verify that the correct communication interface is selected for transfer. Check that the panel is in Transfer mode. Ensure WinCC flexible version is compatible with the panel firmware version. - Event ID: 40000
- Tag read/write error. A configured tag could not be read from or written to the PLC.
Verify the tag address configuration in the WinCC flexible project. Confirm the PLC data block or memory area exists and is accessible. Check for PLC program changes that may have altered memory addresses. - Event ID: 70000
- System memory low. Available memory for runtime operation is critically low.
Reduce the number of active screens or logged data. Archive or delete old data log files. Consider optimizing the project to reduce memory usage. - Event ID: 50000
- Illegal system activity detected. An internal system error has occurred in the panel runtime.
Perform a warm restart of the HMI panel. If the error persists, perform a factory reset and reload the project. Check panel firmware version and update if necessary. - Event ID: 60000
- Data record transfer error. A data record could not be transferred between HMI and PLC.
Check the data record configuration in the WinCC flexible project. Verify PLC data block structure matches the configured data record layout. Retry the data record transfer operation.
Frequently Asked Questions
What communication interfaces are available on the 6AV6446-1BA40-0BA3?
The MP 370 supports MPI, PROFIBUS DP, Ethernet (TCP/IP), and RS-422/485 serial interfaces, allowing connection to a wide range of Siemens SIMATIC PLCs and third-party controllers.
Which engineering software is used to configure this panel?
The SIMATIC MP 370 is configured using Siemens WinCC flexible software. The project is then transferred to the panel via MPI, PROFIBUS, Ethernet, or USB connection.
Is this panel compatible with SIMATIC S7-300 and S7-400 PLCs?
Yes, the MP 370 is fully compatible with SIMATIC S7-300 and S7-400 PLCs via MPI or PROFIBUS DP, and can also connect to S7-300/400 via Ethernet using appropriate communication modules.
What is the operating voltage for the 6AV6446-1BA40-0BA3?
The panel operates on 24 V DC supply voltage, which is standard for SIMATIC HMI panels in industrial cabinet installations.
What is the front panel protection rating of this HMI?
The front panel of the MP 370 carries an IP65 protection rating, making it suitable for installation in environments where dust and water jets may be present.
Troubleshooting
Display remains blank after power on
Check that 24 V DC supply voltage is present at the power connector. Measure voltage at the panel terminals to confirm adequate supply. Inspect the internal fuse if accessible.
Ensure the 24 V DC power supply is functioning correctly and within tolerance. Replace any blown internal fuse. If the backlight has failed, the display panel or inverter board may require replacement.
HMI panel cannot establish communication with the PLC
Verify the communication cable type and wiring for the selected interface (MPI, PROFIBUS, or Ethernet). Check the station address configured on the panel matches the project settings. Use SIMATIC NET diagnostics tools to check network status.
Correct any wiring errors and ensure proper cable termination on PROFIBUS networks. Align the panel station address with the WinCC flexible project configuration. Restart both the PLC and HMI panel after making changes.
Touch screen does not respond or responds inaccurately
Check for physical damage or contamination on the touch screen surface. Determine if the issue is present across the entire screen or only in specific areas. Attempt a touch screen recalibration from the panel's system settings.
Clean the touch screen surface with a soft, dry cloth. Perform a touch screen calibration via the Windows CE Control Panel. If calibration does not resolve the issue, the touch screen digitizer may need to be replaced.
Project transfer from WinCC flexible fails
Confirm the panel is set to Transfer mode before initiating the download. Check that the selected transfer channel (Ethernet, MPI, USB) is correctly configured in both WinCC flexible and the panel settings. Verify that firewall or antivirus software is not blocking the transfer.
Switch the panel to Transfer mode via the Start Center. Match the transfer channel settings in WinCC flexible to the panel configuration. Disable any firewall or security software temporarily during transfer. Ensure WinCC flexible version compatibility with the panel firmware.
Panel reboots unexpectedly or freezes during operation
Check the 24 V DC supply for voltage drops or instability under load. Review the system event log on the panel for recorded fault events. Assess whether the issue occurs on specific screens or actions within the project.
Stabilize the power supply and ensure adequate current capacity for the panel. Optimize the WinCC flexible project to reduce processor load on complex screens. Update the panel firmware to the latest compatible version and reload the project.
| Condition | Repair, Used, Refurbished, New in box (sealed) |
|---|
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