Siemens 6AV6146-6QQ41-0LY4 SIMATIC IPC677C

Name: Siemens 6AV6146-6QQ41-0LY4 SIMATIC IPC677C
Brand: Siemens
SKU: 6AV6146-6QQ41-0LY4
Price: 2995.00 EUR
Availability: InStock

€ 2.995,00

Condition

Clear

SKU: 6AV6146-6QQ41-0LY4 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6146-6QQ41-0LY4 is a high-performance industrial panel PC belonging to the SIMATIC IPC677C series, manufactured by Siemens. It is a panel-mounted industrial PC designed for demanding human-machine interface (HMI) and visualization tasks in industrial environments. The unit combines a powerful computing platform with an integrated display, offering a robust all-in-one solution for process visualization and control.

The SIMATIC IPC677C features a 19-inch widescreen TFT display with a resistive or projected capacitive touch interface, delivering high-resolution graphics for complex visualization applications. It is built around an Intel Core processor platform and supports Windows-based operating systems, enabling compatibility with standard SCADA and HMI software packages including SIMATIC WinCC. The unit provides multiple communication interfaces such as Ethernet (RJ45), USB ports, and optional PROFIBUS or PROFINET connectivity, and is designed for fanless or fan-cooled operation depending on the configuration. The enclosure meets IP65 protection on the front panel, making it suitable for use in environments where dust and water ingress are a concern.

The SIMATIC IPC677C is widely deployed in process industries such as chemical, pharmaceutical, oil and gas, and water treatment plants, where reliable long-term visualization and operator control are required. It is also used in discrete manufacturing environments including automotive assembly lines and machine tool applications. Its industrial-grade construction, extended temperature tolerance, and compatibility with Siemens automation ecosystems make it a suitable choice for applications requiring continuous 24/7 operation.

Technical Specifications

Display Size	19 inch
Display Type	TFT widescreen
Display Resolution	1280 x 1024 px
Touch Technology	Resistive touchscreen
IP Protection (Front)	IP65
Input Voltage	24 V DC
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
Relative Humidity	5 % to 90 % (non-condensing)
Communication Interfaces	2x RJ45 Ethernet, 4x USB, 1x DVI
Series/Product Family	SIMATIC IPC677C
Mounting	Panel mounting
Certifications	CE, UL, cULus
Operating System	Windows 7 / Windows Embedded Standard 7

Common Error Codes & System Events

Event ID: 1001: Application error or unexpected software exception in the HMI runtime environment.
Restart the HMI runtime application. Check Windows Event Viewer for detailed error logs and update or reinstall the HMI software if the issue persists.
Event ID: 6008: The previous system shutdown was unexpected, indicating a possible power loss or system crash.
Check the 24 V DC power supply for stability and correct voltage. Inspect UPS configuration if applicable and review system logs for root cause.
BIOS POST Error: Hardware component not detected during Power-On Self-Test, such as missing RAM or storage device.
Reseat RAM modules and storage drives. Verify all internal connectors are secure. Replace faulty hardware components as identified by POST diagnostics.
WinCC Runtime Error: SIMATIC WinCC runtime fails to start or crashes during operation.
Check WinCC project configuration and license validity. Reinstall WinCC runtime if corrupted. Ensure the operating system and WinCC version are compatible.
Network Connection Lost: Ethernet communication to PLC or SCADA server is interrupted.
Check Ethernet cable connections and switch/router status. Verify IP address configuration and firewall settings. Test connectivity using ping commands.
Touchscreen Not Responding: The resistive touchscreen fails to register input or is misaligned.
Recalibrate the touchscreen via the Windows control panel or SIMATIC touchscreen calibration utility. Clean the screen surface and check the touch controller driver status.
Storage Device Failure: The internal CompactFlash card or SSD is not detected or reports read/write errors.
Check the storage device connection in the BIOS. Replace the CompactFlash card or SSD with a compatible replacement and restore the system image from backup.

Frequently Asked Questions

What is the supply voltage for the SIMATIC IPC677C (6AV6146-6QQ41-0LY4)?

The unit operates on a 24 V DC supply voltage. Ensure the power supply is stable and within the specified tolerance range.

What operating system does the 6AV6146-6QQ41-0LY4 support?

The IPC677C supports Windows 7 and Windows Embedded Standard 7. It is compatible with SIMATIC WinCC and other Windows-based HMI and SCADA software.

What is the front panel IP protection rating of this panel PC?

The front panel of the SIMATIC IPC677C carries an IP65 protection rating, providing protection against dust ingress and low-pressure water jets.

Can the SIMATIC IPC677C communicate with Siemens S7 PLCs?

Yes, the IPC677C supports Ethernet-based communication via PROFINET and can communicate with SIMATIC S7-300, S7-400, and S7-1500 PLCs using standard Siemens communication protocols.

Is the storage device in this unit replaceable?

Yes, the internal storage device (CompactFlash card or SSD depending on configuration) is replaceable. It is recommended to maintain a system image backup to restore the operating system and HMI project after replacement.

Troubleshooting

Display remains blank after power on

Check the 24 V DC supply voltage at the power input connector. Verify that the power LED indicator is active. Attempt to connect an external monitor via the DVI port to determine if the issue is with the display or the system board.

If the external monitor displays output, the internal display or backlight inverter may be faulty and requires replacement. If no output is detected on either display, inspect the power supply unit and internal fuses.

Touchscreen input is inaccurate or unresponsive

Determine whether the issue is a calibration problem or a hardware fault by testing touch response across different screen areas. Check the touch controller driver status in Windows Device Manager.

Recalibrate the touchscreen using the SIMATIC calibration tool or Windows Tablet PC Settings. If calibration does not resolve the issue, update or reinstall the touch controller driver. Replace the touchscreen assembly if hardware failure is confirmed.

System freezes or reboots unexpectedly during operation

Review the Windows Event Viewer for critical errors or blue screen dump files. Monitor the 24 V DC supply for voltage fluctuations. Check CPU and system temperatures via BIOS or monitoring software.

Stabilize the power supply and ensure adequate ventilation around the unit. Clean internal cooling fans or heat sinks if accessible. Update BIOS firmware and operating system patches. Replace faulty RAM or storage media if hardware errors are identified.

Ethernet communication to PLC is lost intermittently

Check physical Ethernet cable connections and test with a known-good cable. Verify IP address settings and subnet configuration. Use ping tests to identify whether the issue is intermittent or permanent.

Replace the Ethernet cable if damaged. Reconfigure the network settings to ensure correct IP addressing. Update the network adapter driver. If the onboard Ethernet port is faulty, use an alternative USB-to-Ethernet adapter as a temporary measure.

HMI project fails to load after system restart

Check whether the WinCC runtime license is valid and present. Verify that the project files on the storage device are intact and not corrupted. Review WinCC diagnostic logs for specific error messages.

Restore the HMI project from a backup copy. Reactivate or transfer the WinCC license using the Siemens Automation License Manager. Reinstall the WinCC runtime software if project files are confirmed to be intact but the runtime still fails to start.

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