Siemens 6AV6446-1CA40-1BB5 SIMATIC MP 370

Name: Siemens 6AV6446-1CA40-1BB5 SIMATIC MP 370
Brand: Siemens
SKU: 6AV6446-1CA40-1BB5
Price: 2995.00 EUR
Availability: InStock

€ 2.995,00

Condition

Clear

SKU: 6AV6446-1CA40-1BB5 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-1CA40-1BB5 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 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 intended for use as a stationary operator interface in industrial automation environments.

The MP 370 (6AV6446-1CA40-1BB5) is equipped with a 15" TFT color display with a resolution of 1024 x 768 pixels (XGA), supporting up to 65,536 colors for clear process visualization. The panel supports both touch and key operation, providing flexible interaction options for operators. It includes MPI/PROFIBUS DP and Ethernet (10/100 Mbit/s) communication interfaces, enabling integration with SIMATIC S7 PLCs and other controllers. The unit runs on WinCC flexible runtime software and provides onboard flash memory along with support for CompactFlash cards for project storage and data logging.

The SIMATIC MP 370 is widely used in machine building, automotive manufacturing, process industries, and factory automation where a large, high-resolution display is required for complex process visualization. Its robust industrial housing and wide operating temperature range make it suitable for installation in control cabinets and harsh production environments. The panel's compatibility with SIMATIC S7-300, S7-400, and other Siemens controllers makes it a standard choice for system integrators working within the SIMATIC ecosystem.

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 touchscreen with membrane keypad
Input/Operating Voltage	24 V DC
Power Consumption	Approx. 40 W
Communication Interface	MPI/PROFIBUS DP, Ethernet 10/100 Mbit/s, RS-422/RS-485, USB
Memory	Onboard Flash; CompactFlash card slot
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 & System Events

Event ID: 10000: Configuration error detected during project download or startup; project data may be corrupted or incompatible with the panel firmware version.
Re-download the WinCC flexible project ensuring the firmware version matches. Recompile and transfer the project from the engineering station.
Event ID: 10001: Communication connection to the PLC has been lost or cannot be established on the configured interface.
Check MPI/PROFIBUS DP or Ethernet cabling and termination resistors. Verify PLC address settings and baud rate match the HMI project configuration.
Event ID: 20000: System memory low warning; available runtime memory is below the required threshold for stable operation.
Reduce the number of active screens or logged variables. Consider increasing CompactFlash card capacity or optimizing the project structure.
Event ID: 30000: CompactFlash card not detected or read/write error on the storage medium.
Reseat the CompactFlash card and verify it is formatted correctly (FAT). Replace the CompactFlash card if errors persist.
Event ID: 40000: Firmware update failed or firmware version mismatch detected between the panel and the loaded project.
Perform a fresh firmware update using ProSave or WinCC flexible. Ensure the correct firmware version is selected for the MP 370 15-inch variant.
Event ID: 50000: Touchscreen calibration error; touch input coordinates are misaligned or the touchscreen is not responding correctly.
Recalibrate the touchscreen via the Control Panel in the Start Center. If calibration fails repeatedly, inspect the touchscreen connector internally or replace the touch overlay.
Event ID: 60000: Backlight failure or backlight lifetime warning; display brightness has dropped significantly or the backlight has failed.
Replace the CCFL backlight lamp or the display unit. Note the operating hours and plan preventive maintenance accordingly.

Frequently Asked Questions

What PLC systems are compatible with the SIMATIC MP 370 (6AV6446-1CA40-1BB5)?

The MP 370 is compatible with SIMATIC S7-300, S7-400, S7-200, and WinAC controllers via MPI/PROFIBUS DP or Ethernet. It can also communicate with third-party controllers using standard serial protocols configured in WinCC flexible.

What software is required to program and configure this panel?

The MP 370 is configured using Siemens WinCC flexible engineering software. Projects are compiled on a PC and transferred to the panel via Ethernet, MPI, or USB.

What is the display size and resolution of the 6AV6446-1CA40-1BB5?

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

Does the MP 370 support Ethernet communication?

Yes, the MP 370 includes an integrated 10/100 Mbit/s Ethernet interface supporting PROFINET and TCP/IP-based communication with SIMATIC controllers and network infrastructure.

What is the operating voltage of this panel?

The SIMATIC MP 370 operates on 24 V DC, which is the standard supply voltage for SIMATIC HMI panels in industrial cabinet installations.

Troubleshooting

Display remains blank after power on

Measure 24 V DC at the power supply connector. Check whether the power LED or status indicator is active. Determine if the backlight has failed while the panel is otherwise operational by shining a light at the screen to check for faint images.

If 24 V DC is confirmed and the panel is running but the backlight is dark, replace the CCFL backlight assembly. If no power is detected, inspect the power supply wiring and connector pins for damage or loose connections.

Touchscreen does not respond or registers incorrect touch positions

Attempt touchscreen recalibration from the Start Center Control Panel. Check for physical damage, contamination, or moisture on the touch surface. Verify that the internal touchscreen ribbon cable is seated correctly.

Recalibrate the touchscreen using the built-in calibration utility. Clean the touch surface with a dry cloth. If calibration fails or the issue persists, replace the touchscreen overlay or the complete display assembly.

HMI cannot establish communication with the S7 PLC

Verify the MPI or PROFIBUS DP address configured in the WinCC flexible project matches the PLC settings. Check cable integrity and bus termination at both ends of the network. Confirm baud rate settings are consistent across all nodes.

Correct any address or baud rate mismatches in the WinCC flexible project and re-download. Replace damaged PROFIBUS cables and ensure proper 120-ohm termination resistors are installed at both ends of the bus.

Panel repeatedly restarts or crashes during operation

Check for overheating by measuring ambient temperature inside the control cabinet. Review the system event log in WinCC flexible for recurring event IDs. Inspect the CompactFlash card for errors or corruption.

Ensure cabinet ventilation is adequate and ambient temperature is within the 0–50 °C operating range. Replace a faulty CompactFlash card with a Siemens-approved card. If the issue persists, perform a full firmware reinstallation using ProSave.

Project download fails or transfer is interrupted

Check the Ethernet or MPI cable connection between the engineering PC and the panel. Verify that the correct communication interface and panel IP address or MPI address are configured in WinCC flexible transfer settings.

Restart both the panel and the engineering PC, then retry the transfer. Ensure firewall settings on the PC do not block WinCC flexible communication. If using MPI, verify the PC adapter (e.g., USB-MPI adapter) drivers are correctly installed.

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