Siemens 6AV6645-0CB01-0AX0 SIMATIC MP 277

Name: Siemens 6AV6645-0CB01-0AX0 SIMATIC MP 277
Brand: Siemens
SKU: 6AV6645-0CB01-0AX0
Price: 1401.00 EUR
Availability: InStock

€ 1.401,00

Condition

Clear

SKU: 6AV6645-0CB01-0AX0 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6645-0CB01-0AX0 is a Multi Panel (MP 277) belonging to the SIMATIC HMI family, designed for machine-level visualization and operator control in industrial automation environments. This panel is part of the MP 277 series, which offers a 10-inch touch-screen display and runs on the Windows CE operating system. It is a mid-range HMI panel suited for demanding visualization tasks requiring a robust and reliable operator interface.

The MP 277 10" Touch (6AV6645-0CB01-0AX0) features a 10.4-inch TFT color display with a resolution of 640 x 480 pixels (VGA) and 256 colors. It is equipped with a resistive touch screen for operator input and includes communication interfaces such as PROFIBUS DP, MPI, and Ethernet (RJ45), enabling integration with a wide range of Siemens SIMATIC S7 PLCs and third-party controllers. The panel provides 12 MB of user memory for project data and supports USB ports for data transfer and peripheral connection. It operates on a 24 V DC supply and is rated IP65 on the front face for protection against dust and water ingress.

The SIMATIC MP 277 is widely used in machine building, automotive manufacturing, food and beverage processing, and general industrial automation. Its combination of touch-screen operation, multiple communication interfaces, and compatibility with the SIMATIC S7 controller family makes it suitable for applications requiring real-time process visualization, alarm management, and recipe handling. The panel is configurable using Siemens WinCC flexible engineering software, which is standard in many industrial automation projects.

Technical Specifications

Display Size	10.4 inch
Display Resolution	640 x 480 pixels (VGA)
Display Colors	256 colors
Display Type	TFT LCD
Touch Technology	Resistive touch screen
Input/Operating Voltage	24 V DC
Power Consumption	Approx. 20 W
User Memory	12 MB
Communication Interface	PROFIBUS DP/MPI, Ethernet (RJ45), USB
Operating System	Windows CE 5.0
IP/Protection Rating	IP65 (front), IP20 (rear)
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
Relative Humidity	10% to 90% (non-condensing)
Mounting	Panel mounting
Certifications	CE, UL, cULus
Series/Product Family	SIMATIC MP 277

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 interrupted.
Check PROFIBUS/MPI or Ethernet cable connections and termination resistors. Verify PLC address settings match the HMI project configuration. Restart both the HMI and PLC if necessary.
Event ID: 10001: Connection to PLC timed out. The HMI panel did not receive a response from the controller within the expected time frame.
Check network cabling and bus termination. Verify the PLC is in RUN mode and the communication parameters (baud rate, station address) are correctly configured in the HMI project.
Event ID: 20000: Tag read error. The HMI panel was unable to read a configured tag or variable from the PLC.
Verify the tag address in WinCC flexible matches the actual PLC data block or memory address. Check that the PLC program contains the referenced variable.
Event ID: 40000: Project download error. A project transfer from the engineering PC to the HMI panel failed or was interrupted.
Check the USB or Ethernet transfer connection. Ensure the HMI panel is in transfer mode and that the WinCC flexible project is compiled without errors before attempting the transfer again.
Event ID: 70010: Backup battery low or missing. The internal buffer battery voltage has dropped below the minimum threshold.
Replace the internal backup battery with the correct Siemens replacement part. Back up any project data before replacing the battery to avoid data loss.
Event ID: 50000: Printer error. The HMI panel cannot communicate with the configured printer or the print job failed.
Check the printer connection and ensure the correct printer driver is configured in the HMI project. Verify the printer is powered on and has paper and ink.
Event ID: 60000: Recipe data error. An error occurred while reading or writing recipe data, possibly due to a corrupted recipe record or insufficient memory.
Check available user memory on the panel. Verify recipe configuration in WinCC flexible and re-transfer the project. Clear corrupted recipe records if necessary.

Frequently Asked Questions

What PLC systems is the SIMATIC MP 277 compatible with?

The MP 277 is primarily designed for use with Siemens SIMATIC S7-300 and S7-400 PLCs via MPI or PROFIBUS DP, and also supports Ethernet-based communication with S7-300/400 and S7-1200 controllers. Third-party PLCs can also be connected using supported communication drivers configured in WinCC flexible.

What engineering software is required to configure the 6AV6645-0CB01-0AX0?

This panel is configured using Siemens WinCC flexible 2008 or later. It is not compatible with the newer TIA Portal WinCC Advanced software, so projects must be created and maintained in WinCC flexible.

What is the user memory capacity of this HMI panel?

The 6AV6645-0CB01-0AX0 provides 12 MB of user memory for storing HMI project data, screens, and recipes.

Does the MP 277 support data logging and alarm archiving?

Yes, the MP 277 supports data logging and alarm archiving to internal memory or to an external USB storage device, allowing historical process data and alarm records to be stored and retrieved.

What is the front panel protection rating of the 6AV6645-0CB01-0AX0?

The front face of the MP 277 is rated IP65, providing full protection against dust ingress and protection against low-pressure water jets, making it suitable for panel-mounted installations in industrial environments.

Troubleshooting

Display remains blank after power on

Measure the 24 V DC supply voltage at the power connector on the rear of the panel. Check that the voltage is within the specified range (19.2 V to 28.8 V DC). Inspect the internal fuse if accessible.

Correct the supply voltage if out of range. If the supply voltage is correct and the display remains blank, the internal power supply or backlight inverter may be faulty and the unit should be sent for repair or the backlight replaced.

Touch screen does not respond or responds inaccurately

Attempt to recalibrate the touch screen through the Windows CE control panel or the SIMATIC HMI startup menu. Check for physical damage or contamination on the touch surface.

Perform a touch screen recalibration via the panel's Start Center or Windows CE settings. Clean the screen surface with a soft, dry cloth. If the touch screen remains unresponsive after recalibration, the touch overlay may need replacement.

HMI panel cannot establish communication with the PLC

Verify the MPI, PROFIBUS, or Ethernet cable connections between the panel and the PLC. Check that the bus address and baud rate configured in the HMI project match the PLC settings. Use a bus diagnostic tool to check for bus errors or address conflicts.

Correct any address or baud rate mismatches in the WinCC flexible project and re-download to the panel. Replace faulty cables or connectors. Ensure PROFIBUS bus termination resistors are correctly placed at both ends of the bus segment.

Project transfer from PC to HMI panel fails

Check that the HMI panel is in Transfer mode (accessible from the Start Center). Verify the Ethernet or USB connection between the engineering PC and the panel. Confirm that the WinCC flexible project compiles without errors.

Switch the panel to Transfer mode manually via the Start Center. Use a known-good USB cable or Ethernet cable. Recompile the WinCC flexible project and retry the transfer. Temporarily disable PC firewall software that may block the transfer connection.

Panel repeatedly restarts or freezes during operation

Check for supply voltage fluctuations or electrical noise on the 24 V DC supply line. Review the alarm and event log on the panel for any system error events. Check available user memory and CPU load in the project.

Install a regulated and filtered 24 V DC power supply if voltage instability is suspected. Optimize the HMI project to reduce CPU load (e.g., reduce update cycles for tags). If the problem persists, perform a factory reset and re-download the project, or return the unit for hardware inspection.

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