Siemens 6AV6146-2QQ45-1LY4 SIMATIC MP 377

Name: Siemens 6AV6146-2QQ45-1LY4 SIMATIC MP 377
Brand: Siemens
SKU: 6AV6146-2QQ45-1LY4
Price: 2495.00 EUR
Availability: InStock

€ 2.495,00

Condition

Clear

SKU: 6AV6146-2QQ45-1LY4 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6146-2QQ45-1LY4 is a Multi Panel (MP 377) belonging to the SIMATIC HMI family, designed for high-performance human-machine interface applications in industrial automation environments. This panel operates as a powerful visualization and operator control unit, capable of running WinCC flexible runtime software for process monitoring and control. It is part of Siemens' SIMATIC HMI panel range, which is widely deployed across manufacturing and process industries.

The MP 377 panel features a 15-inch TFT display with a resolution of 1024 x 768 pixels and 64,000 colors, providing clear and detailed process visualization. It is equipped with a resistive touch screen as well as function keys for flexible operator input. The unit supports multiple communication interfaces including PROFIBUS DP and Ethernet (PROFINET), enabling integration into a wide range of automation network architectures. Onboard memory supports extensive project data storage, and the panel runs on a Windows CE operating system, allowing for robust and reliable runtime operation.

The SIMATIC MP 377 is commonly used in machine building, automotive manufacturing, food and beverage processing, and chemical plant environments where a large-format, high-resolution operator panel is required. Its dual input method (touch and keys) makes it suitable for applications where gloved operators or harsh environments demand physical key input in addition to touch control. The panel's compatibility with S7-300 and S7-400 PLCs via PROFIBUS and PROFINET makes it a standard choice for Siemens-based automation systems.

Technical Specifications

Display Size	15 inch
Display Resolution	1024 x 768 pixels (XGA)
Display Colors	64,000 colors
Display Type	TFT LCD
Touch Technology	Resistive touch screen
Input/Operating Voltage	24 V DC
Power Consumption	Approx. 50 W
Communication Interface	PROFIBUS DP, Ethernet (PROFINET), USB, RS-422/RS-485
Operating System	Windows CE 6.0
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, cULus
Series/Product Family	SIMATIC HMI MP 377

Common Error Codes & System Events

Event ID: 10000: Connection to PLC lost or communication timeout on configured connection.
Check PROFIBUS or Ethernet cable connections and network configuration. Verify PLC is powered and running. Check connection settings in WinCC flexible project.
Event ID: 10001: Connection to PLC established after a previous communication failure.
Informational event. No action required. Monitor for recurring disconnections which may indicate network instability.
Event ID: 20000: Tag read error — the panel cannot read the configured tag from the PLC.
Verify the tag address in the WinCC flexible project matches the actual PLC data block or memory address. Check PLC program for address changes.
Event ID: 20001: Tag write error — the panel cannot write a value to the configured PLC tag.
Check that the target PLC address is not write-protected. Verify tag configuration in the HMI project and confirm PLC is in RUN mode.
Event ID: 40000: Project loading error — the runtime project could not be loaded or is corrupted.
Re-transfer the WinCC flexible project to the panel using ProSave or WinCC flexible. Check available storage memory on the panel.
Event ID: 50000: System memory low — available runtime memory is critically low.
Reduce the number of active screens or logged data. Restart the panel. Consider optimizing the HMI project to reduce memory usage.
Event ID: 110000: Backup battery low or battery failure detected.
Replace the internal backup battery. Refer to the MP 377 operating instructions for battery replacement procedure to avoid data loss.
Event ID: 60000: Screen saver or panel display has been deactivated due to inactivity timeout.
Informational event. Touch the screen or press any key to reactivate the display. Adjust screensaver timeout settings in panel configuration if needed.

Frequently Asked Questions

What PLC systems is the SIMATIC MP 377 compatible with?

The MP 377 is compatible with Siemens S7-300, S7-400, and S7-1500 PLCs via PROFIBUS DP or PROFINET (Ethernet). It can also communicate with third-party controllers using supported serial protocols.

What software is used to program and configure the MP 377 panel?

The MP 377 is configured using Siemens WinCC flexible 2008 or later. Projects are transferred to the panel via Ethernet, USB, or PROFIBUS using the ProSave utility or directly from WinCC flexible.

Does the MP 377 support both touch and key input?

Yes, the MP 377 features a resistive touch screen combined with physical function keys, allowing operator input via both methods. This is useful in environments where gloved operation is required.

What is the supply voltage for the 6AV6146-2QQ45-1LY4?

The panel operates on 24 V DC. Ensure the power supply can deliver sufficient current, as the panel consumes approximately 50 W under normal operating conditions.

Can the MP 377 be used as a replacement for older SIMATIC MP panels?

The MP 377 is generally compatible with projects developed for earlier SIMATIC MP panels, provided the project is migrated and re-compiled in WinCC flexible. Hardware mounting dimensions should be verified before installation.

Troubleshooting

Display remains blank after power on

Measure 24 V DC at the power supply connector on the rear of the panel. Check that the power supply can deliver adequate current. Inspect the panel for any visible damage.

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

Panel does not communicate with the PLC

Check the PROFIBUS or Ethernet cable connections at both the panel and PLC ends. Verify the IP address or PROFIBUS node address configured in the HMI project matches the physical network settings.

Correct any address mismatches in the WinCC flexible project and re-transfer to the panel. Replace faulty cables or connectors. Ensure the PLC is powered and in RUN mode.

Touch screen is unresponsive or inaccurate

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

Perform a touch screen recalibration from the Windows CE Control Panel. Clean the screen surface with a soft, dry cloth. If recalibration does not resolve the issue, the touch screen overlay may need replacement.

HMI project fails to load or runtime crashes on startup

Check available storage memory on the panel. Attempt to reload the project via ProSave. Review the panel's event log for specific error event IDs related to project loading.

Re-transfer the WinCC flexible project to the panel. If memory is insufficient, delete unused files from the panel storage. Ensure the WinCC flexible project was compiled without errors before transfer.

Panel reboots unexpectedly or freezes during operation

Check the 24 V DC supply for voltage dips or instability under load. Review the HMI project for scripts or animations that may cause excessive CPU load.

Stabilize the power supply and ensure adequate current capacity. Optimize the HMI project by reducing script complexity and animation frequency. If the issue persists, a firmware update or hardware inspection may be required.

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