Siemens 6AV6446-1BA40-0BB3 SIMATIC MP 370

Name: Siemens 6AV6446-1BA40-0BB3 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-1BA40-0BB3
Price: 2995.00 EUR
Availability: InStock

€ 2.995,00

Condition

Clear

SKU: 6AV6446-1BA40-0BB3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-1BA40-0BB3 is a Multi Panel (MP 370) belonging to the SIMATIC HMI family, designed for demanding machine-level visualization and operator control tasks. This unit features a 12-inch TFT display and is part of Siemens' high-performance panel range, offering robust local HMI functionality for industrial automation environments. It operates as a standalone operator panel capable of running WinCC flexible runtime applications.

The MP 370 panel is equipped with a 12" TFT color display with a resolution of 800 x 600 pixels (SVGA), supporting up to 256 colors. It includes both touch screen and function key input methods, providing flexible operator interaction. The panel supports multiple communication interfaces including MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling integration with a wide range of Siemens SIMATIC S7 controllers. It runs on a Windows CE operating system and provides sufficient onboard memory for complex visualization projects.

The SIMATIC MP 370 is widely used in machine building, automotive manufacturing, food and beverage processing, and general factory automation. Its combination of a large display, versatile communication options, and compatibility with the SIMATIC S7 controller family makes it suitable for applications requiring detailed process visualization, recipe management, alarm logging, and trend display at the machine level.

Technical Specifications

Display Size	12 inch
Display Resolution	800 x 600 pixels (SVGA)
Display Type	TFT color LCD
Display Colors	256 colors
Touch Technology	Resistive touch screen with function keys
Input/Operating Voltage	24 V DC
Power Consumption	Max. 30 W
Operating System	Windows CE
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/Protection Rating	IP65 (front), IP20 (rear)
Mounting	Panel mounting
Certifications	CE, UL, cUL
Series/Product Family	SIMATIC HMI Multi Panel MP 370

Common Error Codes and System Events

Event ID: 10000: Communication error between HMI panel and PLC controller. Connection to the configured PLC could not be established or was lost.
Check MPI/PROFIBUS or Ethernet cable connections and termination resistors. Verify PLC address settings match the HMI project configuration. Restart both the panel and PLC if necessary.
Event ID: 10001: Tag read error. The HMI panel is unable to read a configured tag from the connected PLC.
Verify the tag address in the WinCC flexible project matches the actual PLC data block or memory address. Check PLC program is running and the address exists.
Event ID: 10002: Tag write error. The HMI panel failed to write a value to a configured PLC tag.
Check that the target PLC memory area is not write-protected. Verify the tag address and data type in the HMI project configuration.
Event ID: 20000: Project download error. Transfer of the WinCC flexible project to the panel failed or was interrupted.
Ensure the panel is in Transfer mode before initiating download. Check the communication cable and PC interface settings. Retry the transfer from SIMATIC WinCC flexible.
Event ID: 40000: System memory low. Available runtime memory on the panel is insufficient for the loaded project.
Reduce the project size by optimizing graphics, limiting alarm buffer size, or reducing the number of active screens. Consider archiving data to an external memory card.
Event ID: 50000: Internal device error or hardware fault detected on the panel.
Perform a panel restart. If the error persists, back up the project, perform a factory reset, and reload the project. Contact Siemens support or arrange hardware repair if the fault continues.
Event ID: 60000: Configuration error. The loaded project contains settings incompatible with the panel hardware version or firmware.
Verify the target panel type and firmware version in the WinCC flexible project settings. Update panel firmware if required and re-download the project.

Frequently Asked Questions

What communication interfaces does the 6AV6446-1BA40-0BB3 support?

The MP 370 supports MPI, PROFIBUS DP, Ethernet (TCP/IP), and RS-422/485 serial interfaces, allowing connection to SIMATIC S7-300, S7-400, and other compatible controllers.

Which software is used to configure and program this HMI panel?

The panel is configured using Siemens SIMATIC WinCC flexible, which allows project creation, screen design, tag configuration, and project transfer to the panel.

What is the display size and resolution of this panel?

The 6AV6446-1BA40-0BB3 features a 12-inch TFT color display with a resolution of 800 x 600 pixels (SVGA) and supports up to 256 colors.

What is the supply voltage for this panel?

The panel operates on 24 V DC supply voltage. Ensure a stable, regulated 24 V DC power source is used to avoid operational issues.

Is this panel compatible with SIMATIC S7-1200 or S7-1500 controllers?

The MP 370 was designed primarily for use with S7-300 and S7-400 controllers via MPI and PROFIBUS DP. Ethernet-based communication with S7-1200 or S7-1500 may be possible but is not the primary intended configuration, and compatibility should be verified against the specific firmware version.

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 supply is within specification. Inspect the internal fuse if accessible.

Ensure the 24 V DC supply is stable and within tolerance. Replace any blown internal fuse. If the backlight has failed, the panel may require backlight or display replacement by a qualified repair technician.

Panel fails to communicate with the PLC

Verify the physical cable connections on the MPI, PROFIBUS, or Ethernet port. Check that the PLC address configured in the HMI project matches the actual PLC station address. Use a bus diagnostic tool to check for bus errors or address conflicts.

Correct any address mismatches in the WinCC flexible project and re-download. Replace damaged cables or connectors. Ensure PROFIBUS termination resistors are correctly placed at both ends of the bus segment.

Touchscreen does not respond or responds inaccurately

Attempt to recalibrate the touch screen through the panel's system settings (Control Panel). 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 require replacement.

Project transfer from PC to panel fails

Confirm the panel is set to Transfer mode before initiating the download. Check the PC communication interface settings (COM port, Ethernet IP address) match the panel configuration. Verify the WinCC flexible project targets the correct panel type.

Switch the panel to Transfer mode via the Start Center menu. Correct the interface settings in WinCC flexible. If using Ethernet, ensure both PC and panel are on the same network subnet. Retry the project transfer.

Panel displays repeated alarm or system event messages after startup

Review the alarm log in WinCC flexible runtime to identify the specific event IDs being generated. Check PLC communication status and tag configurations for any mismatched addresses or data types.

Resolve the root cause of each alarm by correcting tag addresses, restoring PLC communication, or adjusting alarm trigger conditions in the project. Clear the alarm buffer after resolving the underlying issues and restart the panel.

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