Siemens 6AV6446-1CA41-0BB5 MP 370

€ 2.495,00

SKU: 6AV6446-1CA41-0BB5 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6446-1CA41-0BB5 is a Multi Panel (MP 370) belonging to the SIMATIC HMI Multi Panel series, manufactured by Siemens. It is a high-performance operator panel designed for demanding visualization and control tasks in industrial automation environments. The MP 370 features a 12-inch TFT display and is part of the broader SIMATIC HMI product line, which integrates seamlessly with Siemens SIMATIC controllers and third-party systems.

The 6AV6446-1CA41-0BB5 variant 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 the Windows CE operating system and is configurable using Siemens WinCC flexible engineering software. The panel provides multiple communication interfaces including MPI, PROFIBUS DP, and Ethernet (TCP/IP), enabling flexible integration into existing network architectures. Onboard memory includes Flash memory for project storage and RAM for runtime operation, supporting complex visualization projects with graphics, trends, alarms, and recipes.

The MP 370 is widely deployed in machine-level and plant-level visualization applications across industries such as automotive manufacturing, food and beverage processing, chemical and pharmaceutical production, and general factory automation. Its robust construction, wide operating temperature range, and high IP rating on the front panel make it suitable for installation in control cabinets and harsh industrial environments. The panel's compatibility with SIMATIC S7 PLCs and support for standard industrial protocols make it a versatile choice for both OEM machine builders and end-user plant operators.

Technical Specifications

Display Size	12 inch
Display Type	TFT Color
Display Resolution	800 x 600 pixels (SVGA)
Touch Technology	Resistive Touch Screen
Input/Operating Voltage	24 V DC
Power Consumption	Approx. 30 W
Communication Interface	MPI, PROFIBUS DP, Ethernet (TCP/IP), RS-422/485
Operating System	Windows CE
Configuration Software	WinCC flexible 2004 or higher
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
IP Rating (Rear)	IP20
Mounting	Panel mounting
Certifications	CE, UL, cULus

Common Error Codes & System Events

Event ID: 10000: Configuration error detected during startup; project data may be corrupted or incompatible with the panel firmware version.
Reload the project using WinCC flexible. Ensure the firmware version on the panel matches the version used during configuration.
Event ID: 10001: Communication connection to the PLC has been interrupted or cannot be established.
Check MPI/PROFIBUS/Ethernet cabling and connector integrity. Verify PLC address settings and communication parameters in the project configuration.
Event ID: 10002: Tag read/write error; the HMI cannot access a configured PLC tag or variable.
Verify the tag address in WinCC flexible matches the actual PLC data block or memory area. Check PLC program for address changes.
Event ID: 20000: System memory (RAM) is critically low; runtime performance may be degraded.
Reduce the number of active screens or runtime objects. Optimize the project to reduce memory usage and restart the panel.
Event ID: 40000: Internal Flash memory write error; project or recipe data could not be saved.
Check available Flash memory capacity. Delete unused projects or data. If the error persists, the internal Flash memory may require replacement.
Event ID: 50000: License for an optional WinCC flexible runtime feature is missing or invalid.
Verify that the correct runtime license is installed on the panel. Transfer the appropriate license using the Siemens Automation License Manager.
Event ID: 70000: Printer communication error; the configured printer is not responding or is unavailable.
Check printer connection and configuration settings. Verify printer driver compatibility with Windows CE on the MP 370.

Frequently Asked Questions

What communication interfaces are available on the 6AV6446-1CA41-0BB5?

The MP 370 6AV6446-1CA41-0BB5 supports MPI, PROFIBUS DP, Ethernet (TCP/IP), and RS-422/485 serial interfaces, allowing connection to a wide range of Siemens and third-party controllers.

Which engineering software is required to configure this panel?

The panel is configured using Siemens WinCC flexible 2004 or a later compatible version. Projects are transferred to the panel via Ethernet, MPI, or USB.

Is the MP 370 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 also supports S7 communication over Ethernet.

What is the supply voltage for this HMI panel?

The 6AV6446-1CA41-0BB5 operates on a 24 V DC supply voltage, which is standard for SIMATIC HMI panels and compatible with typical industrial control cabinet power supplies.

Can the firmware on the MP 370 be updated in the field?

Yes, the firmware can be updated using a USB memory stick or via Ethernet using the ProSave tool provided by Siemens, without requiring the panel to be removed from service for extended periods.

Troubleshooting

Display remains blank after power on

Measure the 24 V DC supply voltage at the panel's power connector. Check whether the power LED indicator is illuminated. Inspect internal fuses if accessible.

Ensure the 24 V DC supply is within tolerance (typically 19.2 V to 28.8 V). Replace any blown internal fuses. If the backlight is faulty, the display inverter or backlight unit may require replacement.

Touch screen does not respond or responds inaccurately

Attempt to recalibrate the touch screen through the panel's Start Center or Control Panel settings. Check for physical damage or contamination on the screen surface.

Perform a touch screen recalibration via the Windows CE Control Panel. Clean the screen surface with a soft, dry cloth. If calibration fails repeatedly, the touch screen overlay may need to be replaced.

Panel fails to establish communication with the PLC

Verify the communication cable type and wiring (MPI, PROFIBUS, or Ethernet). Check the PLC station address and the address configured in the HMI project. Use Siemens diagnostic tools to test the network.

Correct any address mismatches in the WinCC flexible project. Replace damaged cables or connectors. Ensure the PROFIBUS termination resistors are correctly placed at both ends of the bus segment.

Panel restarts unexpectedly or enters a boot loop

Check the 24 V DC supply for voltage dips or instability under load. Inspect the project for configuration errors that may cause a runtime crash. Review the system event log in the panel's Start Center.

Stabilize the power supply and ensure adequate current capacity. Reload a known-good project version. If the issue persists after reloading the project, perform a factory reset and re-transfer the project and firmware.

Project transfer fails or times out

Verify the transfer connection settings in WinCC flexible match the panel's configured interface (Ethernet IP address, MPI address). Ensure the panel is in Transfer mode via the Start Center.

Set the panel to Transfer mode manually through the Start Center before initiating the transfer. Confirm firewall settings on the engineering PC are not blocking the connection. Try an alternative transfer medium such as USB if Ethernet transfer fails.

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