
Siemens 6AV6146-4PP41-0KY3 SIMATIC MP 377
€ 1.995,00
The Siemens 6AV6146-4PP41-0KY3 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 features a 15-inch TFT widescreen display and is part of the MP 377 series, which represents Siemens' advanced multi-panel platform capable of running both WinCC flexible and SIMATIC WinCC Runtime software. It is a panel PC-class device offering robust visualization and control capabilities for demanding industrial processes.
The MP 377 15" Touch (6AV6146-4PP41-0KY3) is equipped with a resistive touchscreen interface and delivers a display resolution of 1024 x 768 pixels with 64,000 colors. It integrates multiple communication interfaces including PROFINET, MPI/PROFIBUS DP, USB, and Ethernet, enabling seamless connectivity with SIMATIC S7 PLCs and third-party controllers. The panel runs on a Windows CE 6.0 operating system and provides sufficient onboard memory for complex visualization projects, along with a CompactFlash card slot for additional storage expansion.
The SIMATIC MP 377 is widely deployed in manufacturing, process automation, and machine building industries where a large, clear display and reliable HMI performance are required. It is commonly found on packaging machinery, press lines, conveyor systems, and process control panels where operators need real-time data visualization and process interaction. Its rugged construction and wide operating temperature range make it suitable for installation in industrial control cabinets and harsh factory floor environments.
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 |
| Operating System | Windows CE 6.0 |
| Input/Operating Voltage | 24 V DC |
| Power Consumption | Approx. 60 W |
| Communication Interface | PROFINET, MPI/PROFIBUS DP, USB (2x), Ethernet (RJ45) |
| Memory (RAM) | 128 MB |
| Memory (Flash) | 64 MB |
| Storage Expansion | CompactFlash card slot |
| Operating Temperature | 0 °C to +50 °C |
| Storage Temperature | -20 °C to +60 °C |
| IP/Protection Rating | IP65 (front), IP20 (rear) |
| Certifications | CE, UL, cULus |
| Series/Product Family | SIMATIC HMI MP 377 |
Common Error Codes & System Events
- Event ID: 1000000
- System startup event indicating the HMI runtime has been initialized successfully.
Informational only. No action required. If startup fails repeatedly, check project configuration and available memory. - Event ID: 1000002
- Connection to the PLC has been interrupted or cannot be established.
Check PROFIBUS/PROFINET cable connections, verify PLC address settings in the HMI project, and confirm the PLC is powered and in RUN mode. - Event ID: 1000003
- Communication timeout detected on a configured PLC connection.
Verify network cabling and termination resistors on PROFIBUS. Check IP address configuration for PROFINET connections. Restart the HMI panel if the issue persists. - Event ID: 1000010
- Project download error — the project file could not be transferred to the panel.
Ensure the correct transfer cable or network connection is used. Verify that the panel is in Transfer mode and that the PC running WinCC flexible has the correct target panel type selected. - Event ID: 1000020
- Tag read/write error — a configured tag could not be read from or written to the PLC.
Check that the PLC data block and address referenced in the HMI project exist and are accessible. Verify data type compatibility between the HMI tag and PLC variable. - Event ID: 1000040
- Memory overflow — the panel's available runtime memory is insufficient for the loaded project.
Reduce the number of active screens, limit the use of high-resolution images, and archive log data to a CompactFlash card. Consider optimizing the project in WinCC flexible. - Event ID: 1000070
- Backup battery low or missing — the internal buffer battery voltage is below threshold.
Replace the internal backup battery with the correct Siemens-specified replacement. Refer to the MP 377 operating instructions for battery replacement procedure. - Event ID: 1000080
- Screen saver or display backlight timeout has been triggered.
Informational event. Touch the screen or press a key to reactivate the display. Adjust screen saver settings in the panel's Control Panel if required.
Frequently Asked Questions
What software is used to program and configure the MP 377 15" Touch?
The MP 377 is configured using Siemens WinCC flexible 2008 or later. It is also compatible with SIMATIC WinCC Runtime for more advanced SCADA-level projects.
Which PLCs are compatible with the SIMATIC MP 377?
The MP 377 is compatible with the full range of SIMATIC S7 PLCs (S7-300, S7-400, S7-1200, S7-1500) via MPI, PROFIBUS DP, or PROFINET. It also supports third-party PLC connections via OPC or serial drivers.
What is the supply voltage for the 6AV6146-4PP41-0KY3?
The panel operates on 24 V DC. Ensure the power supply can deliver sufficient current, as the panel consumes approximately 60 W.
Can the MP 377 be expanded with additional storage?
Yes, the MP 377 includes a CompactFlash card slot that can be used to expand storage for project data, recipe files, and data logs.
What is the front panel protection rating of the MP 377?
The front panel of the MP 377 achieves an IP65 protection rating, making it suitable for installation in environments where dust and water spray may be present.
Troubleshooting
Display remains blank after power is applied
Measure the 24 V DC supply voltage at the panel's power connector. Check that the supply is within the specified tolerance. Inspect the backlight status by shining a light at the screen to check if an image is present without backlight.
If supply voltage is correct but display is blank, the backlight inverter or LED backlight assembly may have failed. Replace the backlight unit or the complete display assembly. If no voltage is present, check the power supply and wiring.
Touchscreen does not respond or responds inaccurately
Attempt to recalibrate the touchscreen via the panel's Control Panel under Start > Settings > Control Panel > Touch. Check for physical damage, contamination, or moisture on the screen surface.
Perform a touchscreen recalibration. Clean the screen surface with a dry lint-free cloth. If calibration does not resolve the issue, the resistive touch layer may be damaged and the touchscreen assembly should be replaced.
HMI cannot establish communication with the PLC
Verify the communication cable connections at both the panel and PLC ends. Check the configured PLC address and communication parameters in the WinCC flexible project against the actual PLC settings. Use the panel's diagnostic tools to ping the PLC on PROFINET.
Correct any address mismatches in the project configuration and reload the project to the panel. Replace faulty cables or connectors. Ensure PROFIBUS termination resistors are correctly placed at both ends of the bus.
Panel freezes or restarts unexpectedly during operation
Check the 24 V DC supply for voltage dips or ripple using an oscilloscope. Review the system event log on the panel for recorded fault events. Check available RAM and flash memory usage in the runtime environment.
Stabilize the power supply by using a dedicated 24 V DC source with adequate current capacity. Optimize the HMI project to reduce memory usage. If the issue persists, perform a factory reset and reload the project. Hardware faults may require panel repair or replacement of the main CPU board.
Project transfer from PC to panel fails
Confirm the panel is set to Transfer mode (accessible via the panel's loader screen). Verify the network or USB connection between the engineering PC and the panel. Check firewall settings on the PC that may block WinCC flexible transfer communication.
Set the panel to Transfer mode before initiating the download. Use a direct Ethernet connection with a known-good cable. Disable PC firewall temporarily to test if it is blocking the transfer. Ensure the WinCC flexible project is configured for the correct panel type and firmware version.
| Condition | Repair, Used, Refurbished, New in box (sealed) |
|---|
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