Siemens 6AV6446-3AA41-1BY4 MP 370

€ 1.995,00

SKU: 6AV6446-3AA41-1BY4 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-3AA41-1BY4 is a Multi Panel (MP 370) belonging to the SIMATIC HMI Multi Panel series, designed for demanding visualization and operator control tasks in industrial automation environments. This panel features a 12.1-inch TFT color display and runs on the Windows CE operating system, making it a versatile and powerful operator interface unit. It is part of Siemens' established SIMATIC HMI product line, which is widely deployed across process and discrete manufacturing industries.

The MP 370 (6AV6446-3AA41-1BY4) is equipped with a touch-screen interface and supports multiple communication interfaces including MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling seamless integration with SIMATIC S7 PLCs and other compatible controllers. The panel offers substantial onboard memory for project data and supports the WinCC flexible engineering software for configuration and project development. It operates on a 24 V DC supply and is built to IEC 61131 standards, with a robust housing rated for industrial environments. The unit supports both portrait and landscape orientations and includes USB and CF card slots for data transfer and project storage.

The SIMATIC MP 370 is commonly deployed in machine building, automotive manufacturing, food and beverage processing, and chemical plant environments where a reliable and feature-rich HMI solution is required. Its compatibility with the full SIMATIC S7 controller family, combined with its large display and multi-communication capability, makes it well suited for complex visualization tasks on production lines and process control panels. The panel's industrial-grade construction and wide operating temperature range allow it to function reliably in harsh factory floor conditions.

Technical Specifications

Display Size	12.1 inch
Display Type	TFT Color LCD
Display Colors	256 colors
Display Resolution	800 x 600 px (SVGA)
Touch Technology	Resistive touch screen
Input/Operating Voltage	24 V DC
Power Consumption	Approx. 30 W
Operating System	Windows CE
Communication Interface	MPI, PROFIBUS DP, Ethernet (TCP/IP)
Memory	12 MB project memory (Flash)
Interfaces	2x USB, 1x CF card slot, 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
Certifications	CE, UL, cULus
Series/Product Family	SIMATIC HMI Multi Panel (MP 370)

Common Error Codes & System Events

Event ID: 1000: Communication error between HMI panel and PLC. The configured connection to the controller cannot be established or has been lost.
Check MPI/PROFIBUS or Ethernet cable connections and termination resistors. Verify PLC address settings match the HMI project configuration. Restart both PLC and HMI panel.
Event ID: 1003: Tag read error. The HMI panel cannot read a configured tag from the connected controller.
Verify the tag address exists in the PLC program and that the data block or memory area is correctly defined. Check communication link status and update the HMI project if addresses have changed.
Event ID: 10000: System startup error. The HMI runtime application failed to start correctly after power-on.
Perform a panel reset using the reset button or via the Control Panel. If the issue persists, reload the HMI project via ProSave or WinCC flexible and check for corrupted project files.
Event ID: 1004: Tag write error. The HMI panel cannot write a value to a configured PLC tag.
Check that the target PLC memory area is not write-protected. Verify the tag data type and address are correctly configured in the HMI project. Confirm the PLC is in RUN mode.
Event ID: 2521: Recipe data error. A recipe transfer to or from the PLC has failed due to a data inconsistency or communication fault.
Check recipe configuration in WinCC flexible for correct tag assignments. Verify sufficient memory is available on the CF card or internal flash. Retry the recipe transfer after confirming PLC connectivity.
Event ID: 3000: Printer communication error. The HMI panel cannot communicate with the configured printer.
Check printer cable connections and verify the correct printer driver is installed on the panel. Confirm printer settings in the HMI project match the connected printer model.
Event ID: 1001: Connection timeout. The HMI panel did not receive a response from the PLC within the configured timeout period.
Increase the communication timeout value in the HMI project settings. Check network or fieldbus cabling for faults, and verify PLC is powered and in RUN mode.

Frequently Asked Questions

Which engineering software is used to configure the MP 370 (6AV6446-3AA41-1BY4)?

The MP 370 is configured using Siemens WinCC flexible engineering software. Projects can be transferred to the panel via Ethernet, MPI, USB, or CF card.

Which PLCs are compatible with the SIMATIC MP 370?

The MP 370 is compatible with the full SIMATIC S7 controller family including S7-200, S7-300, and S7-400 PLCs, as well as other controllers accessible via supported communication protocols such as PROFIBUS DP and Ethernet TCP/IP.

What communication interfaces does the 6AV6446-3AA41-1BY4 support?

This panel supports MPI, PROFIBUS DP, and Ethernet (TCP/IP) communication interfaces, along with RS-422/485 serial communication for connecting to third-party controllers.

What is the supply voltage for the MP 370 panel?

The MP 370 operates on a 24 V DC supply voltage. Ensure a stable, regulated 24 V DC power source is used to avoid panel faults or unexpected restarts.

Can the MP 370 store data on external media?

Yes, the MP 370 supports CompactFlash (CF) cards and USB storage devices for project transfer, data logging, recipe storage, and backup purposes.

Troubleshooting

Display remains blank after power on

Check that 24 V DC supply voltage is present at the panel's power connector. Measure voltage at the terminal block and verify polarity. Check internal fuse if accessible.

Restore correct 24 V DC supply. If voltage is present but display remains blank, attempt a panel reset. If the backlight has failed, the display or backlight inverter unit may require replacement.

HMI panel fails to communicate with the S7 PLC via PROFIBUS

Verify PROFIBUS cable connections and termination resistors at both ends of the bus. Check that the panel's PROFIBUS address in the project matches the physical address set on the panel. Use a PROFIBUS diagnostic tool to check bus integrity.

Correct any wiring faults or missing termination resistors. Update the PROFIBUS address in the WinCC flexible project to match the panel configuration. Reload the project to the panel and restart both devices.

Touchscreen does not respond or responds inaccurately

Check for physical damage or contamination on the touch surface. Access the touchscreen calibration utility via the Windows CE Control Panel on the panel.

Clean the touch surface with a soft, dry cloth. Recalibrate the touchscreen using the built-in calibration tool in the Control Panel. If calibration does not resolve the issue, the touch overlay may need to be replaced.

Panel repeatedly restarts or crashes during runtime

Check for corrupted project data or insufficient memory. Review the Windows CE event log for error messages. Verify that the CF card is properly seated and not corrupted.

Reload the HMI project using ProSave or WinCC flexible via a direct connection. Format and replace the CF card if it is found to be corrupted. Ensure the project is compatible with the panel's firmware version.

Project transfer to the panel fails via Ethernet

Verify that the panel's IP address is correctly configured and reachable from the engineering PC. Check that the firewall on the PC is not blocking the transfer port. Confirm the panel is in transfer mode.

Set the panel to transfer mode via the Start Center or Control Panel. Ensure the IP address, subnet mask, and gateway settings match the network configuration. Disable any PC firewall temporarily and retry the project transfer.

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