Siemens 6AV6146-1QQ00-1LY4 SIMATIC MP 377

Name: Siemens 6AV6146-1QQ00-1LY4 SIMATIC MP 377
Brand: Siemens
SKU: 6AV6146-1QQ00-1LY4
Price: 3495.00 EUR
Availability: InStock

€ 3.495,00

Condition

Clear

SKU: 6AV6146-1QQ00-1LY4 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6146-1QQ00-1LY4 is a Multi Panel (MP 377) belonging to the SIMATIC HMI family, designed for demanding visualization and operator control tasks in industrial automation environments. This panel is part of the SIMATIC MP 377 series, which offers high-performance human-machine interface capabilities with a large color display. It is manufactured by Siemens and is intended for use as a stationary operator panel in machine and plant control systems.

The MP 377 features a 15-inch TFT color display with a resolution of 1024 x 768 pixels (XGA) and supports touch screen operation. It is powered by a 24 V DC supply and runs on the Windows CE operating system, providing compatibility with WinCC flexible and TIA Portal-based SCADA and HMI projects. The panel includes multiple communication interfaces such as PROFIBUS DP, PROFINET/Ethernet, USB, and a serial RS-422/RS-485 interface, enabling integration into a wide range of automation architectures. Onboard memory includes 12 MB of user memory for project data, and the unit supports CompactFlash cards for extended storage.

The SIMATIC MP 377 is widely deployed in manufacturing, process industries, automotive production, and energy management applications where large-format visualization and robust operator interaction are required. Its compatibility with Siemens S7-300, S7-400, and S7-1500 PLC families makes it a standard choice for complex machine control panels. The panel's industrial-grade construction and broad communication support make it suitable for both standalone machine HMI and networked plant-wide SCADA visualization roles.

Technical Specifications

Display Size	15 inch
Display Resolution	1024 x 768 pixels (XGA)
Display Type	TFT color LCD
Display Colors	64,000 colors
Touch Technology	Resistive touch screen
Input/Operating Voltage	24 V DC
Power Consumption	Approx. 60 W
Operating System	Windows CE
User Memory	12 MB
External Storage	CompactFlash card slot
Communication Interface	PROFIBUS DP, PROFINET/Ethernet (RJ45), USB, RS-422/RS-485
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

Common Error Codes and System Events

Event ID: 10000: Communication error between HMI panel and PLC. The configured connection to the controller cannot be established or has been lost.
Check PROFIBUS or PROFINET cable connections and termination resistors. Verify PLC is powered and running. Confirm communication parameters (address, baud rate) match in both HMI project and PLC configuration.
Event ID: 10001: Tag read error. The HMI panel is unable to read a configured tag from the connected controller.
Verify the tag address exists in the PLC program and has not been modified. Check that the data block or memory area referenced in the HMI project is present and accessible.
Event ID: 10002: Tag write error. A write operation to a PLC tag has failed.
Confirm the target PLC address is not write-protected. Check that the PLC is in RUN mode and that the data area is correctly defined in the PLC project.
Event ID: 20000: Project transfer error. A project download to the HMI panel has failed or been interrupted.
Check the transfer cable or network connection between the engineering PC and the HMI. Ensure the panel is in Transfer mode and that the correct IP address or PROFIBUS address is configured in WinCC flexible or TIA Portal.
Event ID: 40000: System memory low. Available RAM on the HMI panel is insufficient to load or run the current project.
Reduce the project size by optimizing graphics and scripts. Clear unused data logs and alarm archives. Restart the panel to free memory.
Event ID: 50000: CompactFlash card error. The external storage card is not detected, is full, or has a file system error.
Remove and reinsert the CompactFlash card. Format the card using the panel's system settings if necessary. Replace the card if the error persists.
Event ID: 60000: Firmware or operating system error. An internal software fault has caused the panel to become unresponsive or to restart unexpectedly.
Perform a controlled restart of the panel. If the issue recurs, update the panel firmware to the latest compatible version using the Siemens ProSave tool or TIA Portal.

Frequently Asked Questions

What PLC families are compatible with the SIMATIC MP 377?

The MP 377 is compatible with Siemens SIMATIC S7-300, S7-400, S7-1500, and S7-200 PLCs, as well as third-party controllers via serial communication. Connectivity is established via PROFIBUS DP or PROFINET/Ethernet depending on the PLC model.

What software is used to program or configure the MP 377?

The MP 377 is configured using Siemens WinCC flexible 2008 or the TIA Portal with the WinCC option. Projects are downloaded to the panel via Ethernet, USB, or PROFIBUS connection from the engineering PC.

Does the MP 377 support both touch and key operation?

The 6AV6146-1QQ00-1LY4 variant supports touch screen operation. Some MP 377 variants also include function keys, but the specific configuration depends on the exact order number suffix.

Can the MP 377 store data logs and alarm archives locally?

Yes, the MP 377 can store data logs, alarm archives, and recipes locally using the onboard flash memory or an external CompactFlash card inserted into the card slot.

What is the supply voltage requirement for the MP 377?

The MP 377 requires a 24 V DC power supply, typically connected via the rear terminal block. The permissible voltage range is generally 19.2 V DC to 28.8 V DC.

Troubleshooting

Display remains blank after power on

Check that 24 V DC is present at the power supply terminals on the rear of the panel. Measure voltage at the input connector and verify the power supply unit is functioning correctly.

If supply voltage is confirmed correct, check the internal backlight fuse or backlight inverter board. Replace the backlight or inverter if faulty. If the panel shows no signs of life at all, the internal power supply board may require replacement.

HMI panel cannot establish communication with the PLC

Verify the PROFIBUS or Ethernet cable is correctly connected and undamaged. Check that the PLC address and communication parameters configured in the HMI project match the actual PLC settings. Use a network diagnostic tool to confirm the PLC is reachable.

Correct any mismatched communication parameters in the HMI project and re-download. Replace the communication cable if damaged. Ensure PROFIBUS termination resistors are correctly placed at both ends of the bus segment.

Touch screen does not respond or responds inaccurately

Inspect the touch screen surface for physical damage, dirt, or moisture. Access the panel's system settings to run the touch screen calibration routine.

Clean the touch screen surface with a soft, dry cloth. Perform a touch screen recalibration from the Windows CE control panel. If calibration does not resolve the issue, the touch screen overlay or controller board may need replacement.

Project transfer from engineering PC fails

Confirm the panel is set to Transfer mode via the Start Center menu. Verify the IP address or PROFIBUS address in the TIA Portal or WinCC flexible project matches the panel's configured address. Check that no firewall is blocking the connection on the engineering PC.

Set the correct transfer parameters in the engineering software and retry the download. If using Ethernet, ensure both devices are on the same subnet. Use the Siemens ProSave tool as an alternative transfer method if the standard transfer continues to fail.

Panel restarts unexpectedly or freezes during operation

Check the supply voltage for stability and ensure it remains within the 19.2 V to 28.8 V DC range under load. Review the alarm and event log on the panel for recorded system events prior to the restart.

Stabilize the power supply and add filtering if voltage fluctuations are detected. Reduce project complexity if memory overload events are logged. Update the panel firmware to the latest version compatible with the installed WinCC flexible or TIA Portal project version.

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