Siemens 6AV6446-7AA40-2BY3 SIMATIC MP 370

Name: Siemens 6AV6446-7AA40-2BY3 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-7AA40-2BY3
Price: 1995.00 EUR
Availability: InStock

€ 1.995,00

Condition

Clear

SKU: 6AV6446-7AA40-2BY3 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-7AA40-2BY3 is a Multi Panel (MP 370) belonging to the SIMATIC HMI family, designed for demanding visualization and operator control tasks in industrial automation environments. This panel features a 15-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 engineered for continuous operation in harsh industrial conditions and integrates seamlessly with Siemens SIMATIC controller families.

The MP 370 panel is equipped with a high-resolution 15-inch TFT color display with a resolution of 1024 x 768 pixels (XGA), supporting up to 256 colors. It features a resistive touch screen interface and includes a MPI/PROFIBUS DP interface as well as an Ethernet (RJ45) port for network connectivity. The unit runs on Windows CE and supports configuration via Siemens WinCC flexible engineering software. Onboard memory includes Flash memory for project and recipe storage, and the panel supports CF card expansion for additional data storage.

The SIMATIC MP 370 is widely deployed in machine building, automotive manufacturing, process industries, and plant automation where large-format visualization and robust operator interaction are required. Its combination of a large display, touch operation, and broad communication capability makes it suitable for complex SCADA-level visualization at the machine level. The panel is compatible with SIMATIC S7-300, S7-400, and other SIMATIC controller families, making it a versatile choice for system integrators and OEMs.

Technical Specifications

Display Size	15 inch
Display Resolution	1024 x 768 pixels (XGA)
Display Type	TFT color
Display Colors	256 colors
Touch Technology	Resistive touch screen
Operating Voltage	24 V DC
Power Consumption	Approx. 50 W
Communication Interface	MPI/PROFIBUS DP, Ethernet (RJ45), RS-422/485
Operating System	Windows CE
Memory	Flash memory onboard; CF card slot for expansion
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

Common Error Codes & System Events

Event ID: 1000: Communication error between HMI panel and PLC controller. Connection to the configured PLC could not be established or was interrupted.
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/write error. The HMI panel cannot read from or write to a configured tag in the PLC.
Verify the tag address in the WinCC flexible project matches the actual PLC data block or memory area. Check PLC program for address conflicts.
Event ID: 10000: Connection to PLC lost during runtime operation.
Inspect communication cable integrity and connector seating. Check for electromagnetic interference sources near the communication cable. Verify PLC is in RUN mode.
Event ID: 10001: Project download failed or project data corrupted on the panel.
Re-download the WinCC flexible project to the panel via Ethernet or MPI. Check available Flash memory on the panel and delete unused projects if necessary.
Event ID: 20000: System memory low warning. Available runtime memory is critically low.
Reduce the number of active screens or objects in the project. Delete unnecessary data records and log files from the panel memory or CF card.
Event ID: 40000: Hardware fault detected. Internal panel hardware component has reported an error.
Perform a panel restart. If the fault persists, check the 24 V DC supply voltage quality. Contact Siemens technical support or arrange panel repair/replacement.
Event ID: 50000: CF card read/write error. The panel cannot access the inserted CompactFlash card.
Remove and reinsert the CF card. Verify the CF card is formatted correctly (FAT). Replace the CF card if errors persist.
Event ID: 70000: Printer communication error. The panel cannot communicate with the configured printer.
Check printer cable connections and printer power status. Verify printer driver settings in the WinCC flexible project configuration.

Frequently Asked Questions

What engineering software is used to configure the SIMATIC MP 370 (6AV6446-7AA40-2BY3)?

The MP 370 is configured using Siemens WinCC flexible software. Projects are downloaded to the panel via MPI, PROFIBUS DP, or Ethernet connection.

Which Siemens PLC families are compatible with this MP 370 panel?

The MP 370 is compatible with SIMATIC S7-300, S7-400, S7-200, and also supports connectivity to SIMATIC S5 controllers and third-party controllers via appropriate communication drivers.

What communication interfaces are available on the 6AV6446-7AA40-2BY3?

This panel provides MPI/PROFIBUS DP, Ethernet (RJ45), and RS-422/485 serial interfaces, enabling flexible integration into various network topologies.

Does the MP 370 support recipe and data logging functions?

Yes, the MP 370 supports recipe management and data logging. Data can be stored in onboard Flash memory or on an external CompactFlash card inserted into the CF card slot.

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 is applied

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

Ensure the 24 V DC supply is stable and within tolerance. If supply voltage is correct and the display remains blank, the backlight or internal power supply board may have failed and the panel will require repair or backlight replacement.

Touch screen does not respond or responds inaccurately

Attempt to recalibrate the touch screen via the panel's Start Center or Service menu. Check for physical damage or contamination on the touch surface.

Perform a touch screen recalibration through the Windows CE Start Center. Clean the touch surface with a soft, dry cloth. If calibration fails repeatedly, the resistive touch overlay may be damaged and require replacement.

Panel cannot establish communication with the PLC

Verify the MPI or PROFIBUS address configured in the WinCC flexible project matches the physical PLC address. Check cable connections, bus termination, and cable length compliance.

Correct any address mismatches in the project configuration and re-download to the panel. Replace or reseat the communication cable. Ensure bus termination resistors are correctly placed at both ends of the PROFIBUS segment.

Project download from PC to panel fails

Check the Ethernet or MPI connection between the engineering PC and the panel. Verify the panel is in Transfer mode and that the correct IP address or MPI address is configured in WinCC flexible.

Switch the panel to Transfer mode via the Start Center. Confirm network settings on both the PC and panel. Disable PC firewall temporarily to rule out network blocking. Retry the download.

Panel restarts unexpectedly during operation

Monitor the 24 V DC supply voltage for voltage dips or instability under load. Check the operating environment temperature against the panel's specified range of 0 °C to +50 °C.

Install a regulated, adequately rated 24 V DC power supply. Improve panel cabinet ventilation if overheating is suspected. If restarts continue with a stable supply, the panel may have an internal hardware fault requiring professional repair.

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