Siemens 6AV6446-7AA40-0BY4 SIMATIC MP 370

Name: Siemens 6AV6446-7AA40-0BY4 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-7AA40-0BY4
Price: 2495.00 EUR
Availability: InStock

€ 2.495,00

Condition

Clear

SKU: 6AV6446-7AA40-0BY4 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-7AA40-0BY4 is a Multi Panel (MP 370) belonging to the SIMATIC HMI family, designed for demanding machine-level and process visualization tasks. This unit features a 15-inch TFT display and is part of the SIMATIC MP 370 series, which represents a high-performance class of operator panels within Siemens' HMI portfolio. It is intended for use as a standalone operator interface in industrial automation environments.

The MP 370 panel is equipped with a high-resolution color TFT display with a resolution of 1024 x 768 pixels (XGA), supporting up to 65,536 colors. It offers both touch screen and key operation capabilities, providing flexible operator interaction. The panel supports multiple communication interfaces including MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling integration into a wide range of Siemens and third-party control architectures. It runs on WinCC flexible runtime software and provides substantial project memory for complex visualization applications. The operating voltage is 24 V DC, and the unit carries CE and UL certifications.

The SIMATIC MP 370 is widely deployed in machine building, automotive manufacturing, food and beverage processing, and chemical plant operations. Its large display size and dual input method (touch and keys) make it suitable for applications requiring detailed process overviews and operator interaction in environments where both gloved and direct touch operation may be needed. The panel's robust construction and wide operating temperature range make it appropriate for installation in industrial control cabinets and harsh production environments.

Technical Specifications

Display Size	15 inch
Display Resolution	1024 x 768 pixels (XGA)
Display Colors	65,536 colors
Display Type	TFT color LCD
Touch Technology	Resistive touch screen with additional function keys
Input/Operating Voltage	24 V DC
Power Consumption	Approx. 60 W
Communication Interface	MPI, PROFIBUS DP, Ethernet (TCP/IP), RS-422/485
Operating System	Windows CE
Software	WinCC flexible Runtime
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: Configuration error detected during startup; project data may be corrupted or incompatible with the runtime version.
Reload the project using WinCC flexible and ensure the runtime version matches the project configuration version.
Event ID: 10001: Communication connection to the PLC has been lost or cannot be established.
Check MPI/PROFIBUS/Ethernet cabling and termination resistors. Verify PLC address settings and communication parameters in the project configuration.
Event ID: 10002: Tag read/write error; the panel cannot access a configured PLC variable.
Verify the tag address in WinCC flexible matches the actual PLC data block or memory address. Check PLC program for address changes.
Event ID: 10003: Project download failed or project memory is insufficient.
Check available memory on the panel. Reduce project size or clear old projects before downloading again.
Event ID: 10004: System time synchronization error; the panel clock could not be synchronized with the PLC or time server.
Check time synchronization settings in WinCC flexible. Verify network connectivity if using NTP synchronization.
Event ID: 10005: Alarm buffer overflow; the number of pending alarms exceeds the configured buffer size.
Acknowledge and clear existing alarms. Increase the alarm buffer size in the project configuration if overflow occurs frequently.
Event ID: 10006: Recipe data error; recipe records could not be read from or written to the configured storage location.
Check the recipe configuration in WinCC flexible. Verify that the target storage path exists and has sufficient free space.
Event ID: 10007: Touchscreen calibration error or input device not responding correctly.
Recalibrate the touchscreen via the Control Panel in Windows CE. If the issue persists, inspect the touchscreen connector internally or replace the touch overlay.

Frequently Asked Questions

What communication interfaces does the SIMATIC MP 370 (6AV6446-7AA40-0BY4) support?

The MP 370 supports MPI, PROFIBUS DP, Ethernet (TCP/IP), and RS-422/485 interfaces, allowing connection to a wide range of Siemens PLCs and third-party controllers.

Which software is used to configure and program this panel?

The SIMATIC MP 370 is configured using Siemens WinCC flexible engineering software. The panel runs WinCC flexible Runtime on a Windows CE operating system.

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 via Ethernet to S7-300/400 CPUs equipped with Ethernet interfaces.

What is the display size and resolution of the 6AV6446-7AA40-0BY4?

This panel features a 15-inch TFT color display with a resolution of 1024 x 768 pixels (XGA) and supports 65,536 colors.

What is the front panel protection rating of this unit?

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

Measure the 24 V DC supply voltage at the power connector. Check that the voltage is within the specified tolerance. Inspect the internal fuse if accessible.

Ensure the 24 V DC supply is stable and within tolerance. If the supply is correct and the display remains blank, the internal power supply board or backlight inverter may require replacement.

Panel fails to communicate with the PLC

Check the physical cable connections on the MPI, PROFIBUS, or Ethernet port. Verify the bus address and baud rate settings on both the panel and the PLC. Use a bus diagnostic tool to check for bus termination issues.

Correct any wiring faults, ensure proper bus termination resistors are in place, and verify that the communication parameters in the WinCC flexible project match the PLC configuration.

Touchscreen does not respond or responds inaccurately

Attempt to recalibrate the touchscreen through the Windows CE Control Panel. Check for physical damage or contamination on the screen surface.

Perform a touchscreen recalibration. Clean the screen surface with a soft cloth. If inaccuracy persists after calibration, the touch overlay may be worn or damaged and should be replaced.

Project cannot be downloaded to the panel

Verify the Ethernet or MPI connection between the engineering PC and the panel. Check that the WinCC flexible version on the PC is compatible with the panel's runtime version. Ensure sufficient free memory on the panel.

Delete old or unused projects from the panel memory, confirm version compatibility between WinCC flexible and the panel runtime, and retry the download using the correct transfer settings.

Panel repeatedly restarts or shows a Windows CE error on boot

This may indicate corrupted system software or a failed compact flash/internal memory. Check if the panel enters the loader menu on startup and whether the runtime software is intact.

Perform a firmware update or system software restore using the Siemens ProSave tool. If the internal storage is faulty, the storage medium or main board may require replacement.

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