Siemens 6AV6146-3LP40-1KA2 SIMATIC MP 377

Name: Siemens 6AV6146-3LP40-1KA2 SIMATIC MP 377
Brand: Siemens
SKU: 6AV6146-3LP40-1KA2
Price: 3495.00 EUR
Availability: InStock

€ 3.495,00

Condition

Clear

SKU: 6AV6146-3LP40-1KA2 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6146-3LP40-1KA2 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 features a 15-inch TFT widescreen display and operates as a high-performance HMI device within the SIMATIC HMI MP 377 series. It is engineered for use as a standalone operator panel or integrated into broader SIMATIC-based control architectures.

The MP 377 (6AV6146-3LP40-1KA2) is equipped with a resistive touchscreen and an additional membrane keyboard for flexible operator input. It runs on Microsoft Windows CE and supports communication via PROFIBUS DP, PROFINET/Ethernet (RJ45), MPI, and USB interfaces, enabling integration with a wide range of Siemens PLCs including S7-300, S7-400, and S7-1500 series. The panel provides 12 MB user memory for project data, a CompactFlash card slot for extended storage, and a 400 MHz processor for responsive screen rendering and data handling. The display resolution is 1024 x 768 pixels with 64,000 colors, and the unit operates on 24 V DC supply voltage.

The SIMATIC MP 377 is widely deployed in manufacturing, process automation, automotive production, and machine tool industries where a robust and versatile HMI solution is required. Its combination of touch and key operation makes it suitable for environments where operators need reliable input methods under varying conditions. The panel's broad communication capability and compatibility with the SIMATIC software ecosystem make it a practical choice for both new installations and system upgrades.

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 touchscreen
Input/Operating Voltage	24 V DC
Power Consumption	Max. 60 W
Processor	400 MHz
User Memory	12 MB
Storage Expansion	CompactFlash card slot
Communication Interface	PROFIBUS DP, PROFINET/Ethernet (RJ45), MPI, USB
Operating System	Microsoft Windows CE
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
IP Rating (Front)	IP65
Certifications	CE, UL, cULus
Series/Product Family	SIMATIC HMI MP 377

Common Error Codes & 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 physical PROFIBUS/MPI/Ethernet cabling and connectors. Verify PLC is powered and running. Confirm communication parameters (address, baud rate) match in both the HMI project and PLC configuration.
Event ID: 10001: Connection to PLC interrupted during runtime. Tags cannot be read or written.
Inspect network cables and connectors for damage. Verify PLC program is active. Restart the HMI panel and PLC if the connection is not restored automatically.
Event ID: 20000: Tag read error. The HMI panel is unable to read a configured tag from the PLC.
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 correct and accessible.
Event ID: 20001: Tag write error. A write operation to a PLC tag has failed.
Confirm the PLC tag is not write-protected. Check that the HMI operator has sufficient access rights. Verify the tag address and data type match between the HMI project and PLC.
Event ID: 40000: Project loading error. The HMI runtime project could not be loaded from storage.
Check the CompactFlash card for errors or corruption. Re-transfer the project from the engineering PC using SIMATIC WinCC flexible or TIA Portal. Ensure sufficient free memory is available on the panel.
Event ID: 50000: System memory low. Available RAM on the HMI panel is critically low, which may cause instability or slow response.
Reduce the number of active screens or logged tags. Optimize the HMI project to reduce memory usage. Consider archiving historical data to an external storage device.
Event ID: 70000: Backup battery low or missing. The internal buffer battery voltage is below the required threshold.
Replace the internal buffer battery with the correct Siemens-specified replacement. Refer to the MP 377 operating instructions for battery replacement procedure.

Frequently Asked Questions

What PLC families are compatible with the SIMATIC MP 377 (6AV6146-3LP40-1KA2)?

The MP 377 is compatible with Siemens SIMATIC S7-300, S7-400, S7-1500, and S7-200 series PLCs, as well as other controllers supported via PROFIBUS DP, MPI, or PROFINET/Ethernet communication.

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

The MP 377 is configured using Siemens SIMATIC WinCC flexible 2008 or the TIA Portal with WinCC (depending on project requirements). Projects are transferred to the panel via Ethernet, USB, or CompactFlash card.

What is the supply voltage for the 6AV6146-3LP40-1KA2?

The panel operates on a 24 V DC supply voltage. Ensure the power supply can deliver sufficient current to meet the panel's maximum power consumption of 60 W.

Does the MP 377 support remote access or VNC connectivity?

Yes, the SIMATIC MP 377 supports VNC (Virtual Network Computing), allowing remote monitoring and operation of the panel interface from a PC or other VNC-compatible client over an Ethernet network.

What is the IP protection rating of the MP 377 front panel?

The front panel of the MP 377 carries an IP65 protection rating, making it resistant to dust ingress and low-pressure water jets, suitable for installation in industrial cabinet doors and enclosures.

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 supply voltage is within the specified range. Inspect the internal fuse if accessible.

Restore correct 24 V DC supply voltage. If the supply is correct and the display remains blank, the backlight inverter or internal power board may be faulty and require replacement or professional repair.

Touchscreen does not respond or responds inaccurately

Attempt to operate the panel using the membrane keyboard if available. Check whether the touch issue is consistent across the entire screen or limited to specific zones, which may indicate physical damage or calibration drift.

Perform a touchscreen recalibration via the Windows CE Control Panel or the SIMATIC HMI startup menu. If calibration does not resolve the issue, the resistive touch overlay may be damaged and require replacement.

HMI project fails to load or runtime does not start

Check the CompactFlash card is properly seated and not corrupted. Attempt to boot the panel and observe any error messages during startup. Connect a USB mouse and keyboard to navigate the Windows CE desktop for diagnostics.

Re-transfer the HMI project from the engineering PC using WinCC flexible or TIA Portal. If the CompactFlash card is faulty, replace it with a compatible card and reload the project and operating system image.

Communication loss to PLC during operation

Check Ethernet or PROFIBUS cabling between the panel and PLC. Verify network switch or hub functionality. Confirm PLC is in RUN mode and the communication parameters in the HMI project match the PLC configuration.

Replace or reseat network cables. Correct any mismatched IP addresses, subnet masks, or PROFIBUS node addresses. Restart both the HMI panel and PLC to re-establish the connection.

Panel freezes or becomes unresponsive during runtime

Observe whether the freeze occurs on specific screens or actions, which may indicate a project configuration issue. Check system memory usage via the Windows CE Task Manager if accessible.

Restart the panel by cycling the 24 V DC power supply. Optimize the HMI project to reduce memory load, limit the number of simultaneous active connections, and ensure the firmware is updated to the latest version recommended by Siemens.

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