Siemens 6AV6446-1AA41-1BB3 SIMATIC MP 370

Name: Siemens 6AV6446-1AA41-1BB3 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-1AA41-1BB3
Price: 1995.00 EUR
Availability: InStock

€ 1.995,00

Condition

Clear

SKU: 6AV6446-1AA41-1BB3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-1AA41-1BB3 is a Multi Panel (MP 370) belonging to the SIMATIC HMI family, designed for demanding machine-level visualization and operator control tasks. This panel features a 12-inch TFT display and is part of Siemens' high-performance Multi Panel series, which bridges the gap between standard operator panels and full PC-based systems. It is intended for use as a stationary operator interface in industrial automation environments.

The MP 370 (6AV6446-1AA41-1BB3) is equipped with a 12" TFT color display with a resolution of 800 x 600 pixels (SVGA) and supports touch screen operation. It runs on WinCC flexible as its configuration software and offers communication interfaces including MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling integration with a wide range of Siemens SIMATIC PLCs including S7-200, S7-300, and S7-400. The panel includes a robust industrial-grade housing with a protection rating of IP65 on the front face, making it suitable for panel-mount installations in harsh environments.

The SIMATIC MP 370 is widely deployed in manufacturing automation, process control, and machine tool applications across industries such as automotive, food and beverage, chemical processing, and packaging. Its combination of a large color display, flexible communication options, and compatibility with the SIMATIC controller ecosystem makes it a practical choice for complex visualization tasks requiring multiple screens, trends, alarms, and recipe management.

Technical Specifications

Display Size	12 inch
Display Resolution	800 x 600 pixels (SVGA)
Display Colors	256 colors (TFT)
Touch Technology	Resistive touch screen
Input/Operating Voltage	24 V DC
Power Consumption	Max. 30 W
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
Series/Product Family	SIMATIC HMI Multi Panel MP 370
Certifications	CE, UL, cULus

Common Error Codes & System Events

Event ID: 1000: Configuration error detected on startup — the loaded project is incompatible with the panel firmware version.
Check the WinCC flexible project version and firmware version compatibility. Update firmware or recompile and re-transfer the project.
Event ID: 10000: Communication error to the configured PLC — connection to the controller cannot be established.
Verify MPI/PROFIBUS address settings, check cable connections, and confirm PLC is powered and in RUN mode.
Event ID: 10001: Communication timeout — the HMI panel lost connection to the PLC during operation.
Check network cabling and termination resistors on PROFIBUS. Verify PLC program is running and responding. Restart communication.
Event ID: 20000: Tag read error — a configured tag cannot be read from the PLC.
Verify the tag address exists in the PLC program and that the data block or memory area is accessible. Check PLC program for address changes.
Event ID: 40000: System memory low — available runtime memory is insufficient for the loaded project.
Reduce the number of active screens, limit trend buffers, or simplify the project. Consider archiving data externally.
Event ID: 50000: Transfer mode active — panel is waiting for a project download from the engineering PC.
If unintentional, cancel transfer mode via the panel's Start Center. Otherwise, proceed with project transfer from WinCC flexible.
Event ID: 70000: Backup/restore error — an error occurred during project backup or restore operation.
Check the storage medium (CF card or USB) for errors. Reformat if necessary and retry the backup or restore procedure.

Frequently Asked Questions

Which configuration software is required for the SIMATIC MP 370?

The MP 370 is configured using Siemens WinCC flexible. The appropriate version must match the panel's firmware version for successful project transfer.

Which PLCs are compatible with the Siemens 6AV6446-1AA41-1BB3?

The MP 370 supports communication with Siemens SIMATIC S7-200, S7-300, and S7-400 PLCs via MPI or PROFIBUS DP, as well as Ethernet-capable controllers via TCP/IP.

What is the display size and type on this panel?

The 6AV6446-1AA41-1BB3 features a 12-inch TFT color touch screen with a resolution of 800 x 600 pixels (SVGA) and resistive touch technology.

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

The front face of the MP 370 carries an IP65 protection rating, making it resistant to dust and water jets, suitable for panel-mount installations in industrial environments.

Can the MP 370 be used with a CompactFlash card for data storage?

Yes, the SIMATIC MP 370 includes a CompactFlash card slot that can be used for project storage, data logging, recipe storage, and firmware updates.

Troubleshooting

Display remains blank after power on

Measure the 24 V DC supply voltage at the power connector. Check that the supply is within the specified range and that polarity is correct.

Correct the supply voltage if out of range. If voltage is correct, check the internal backlight fuse or replace the backlight inverter board. A failed backlight is a common cause of a blank display with an otherwise functioning panel.

Touch screen does not respond or responds inaccurately

Check for physical damage to the touch surface. Attempt a touch screen recalibration from the panel's Start Center or Control Panel menu.

Recalibrate the touch screen using the built-in calibration utility. If calibration does not resolve the issue, the resistive touch overlay may be damaged and requires replacement.

Panel fails to establish communication with the PLC

Verify the MPI or PROFIBUS address configured in the WinCC flexible project matches the panel's hardware address setting. Check cable connections and bus termination.

Correct address mismatches in the project or on the panel. Replace or reseat the communication cable. Ensure proper bus termination resistors are installed at both ends of the PROFIBUS segment.

Project transfer from WinCC flexible fails

Confirm the panel is in Transfer mode via the Start Center. Check that the PC and panel are connected via the correct interface (Ethernet, MPI, or USB) and that the correct transfer channel is selected in WinCC flexible.

Set the panel to Transfer mode manually. Verify firewall settings on the PC are not blocking the transfer. Ensure WinCC flexible version is compatible with the panel firmware version; update firmware if necessary.

Panel repeatedly restarts or shows a runtime error on startup

The loaded project may be corrupted or incompatible with the current firmware. Connect to the panel via WinCC flexible and check the event log for specific event IDs.

Perform a factory reset via the Start Center to clear the corrupted project, then re-transfer a valid project from the engineering PC. Update the panel firmware if a version mismatch is identified.

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