Siemens 6AV6645-0AA01-0AX0 SIMATIC MP 277

Name: Siemens 6AV6645-0AA01-0AX0 SIMATIC MP 277
Brand: Siemens
SKU: 6AV6645-0AA01-0AX0
Availability: InStock

Price range: € 1.000,00 through € 2.400,00

Condition

Clear

SKU: 6AV6645-0AA01-0AX0 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens SIMATIC MP 277 (part number 6AV6645-0AA01-0AX0) is a multi-panel HMI device belonging to the SIMATIC Multi Panel 277 series. It is designed for machine-level visualization and operator control in industrial automation environments. This unit features a 10.4-inch TFT display and runs on the Windows CE operating system, making it suitable for demanding HMI applications.

The 6AV6645-0AA01-0AX0 variant is equipped with a resistive touch screen and supports communication via PROFIBUS DP and MPI interfaces, enabling direct integration with Siemens S7-300 and S7-400 PLCs. It provides 12 MB of user memory for project data and is configured using WinCC flexible 2008 or later engineering software. The panel operates on a 24 V DC supply and features a robust aluminum front bezel with IP65 protection on the front face, suitable for panel mounting in industrial cabinets.

The SIMATIC MP 277 is widely deployed in manufacturing, automotive, food and beverage, and process industries where a reliable mid-range HMI with touch operation is required. Its compatibility with the SIMATIC S7 controller family and support for recipe management, trend displays, and alarm logging make it a practical choice for machine builders and system integrators. The panel is typically installed in control cabinet doors or operator stations on production lines and assembly machines.

Technical Specifications

Display Size	10.4 inch
Display Type	TFT color LCD
Display Resolution	640 x 480 pixels (VGA)
Display Colors	256 colors
Touch Technology	Resistive touch screen
Input Voltage	24 V DC
Power Consumption	Max. 18 W
Operating System	Windows CE 5.0
User Memory	12 MB
Communication Interface	PROFIBUS DP, MPI, RS-422/485
IP Protection Rating (Front)	IP65
IP Protection Rating (Rear)	IP20
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

Common Error Codes & System Events

Event ID: 10000: Communication error between the HMI panel and the connected PLC. The connection to the controller could not be established or was interrupted.
Check PROFIBUS/MPI cable connections and termination resistors. Verify the configured PLC address matches the actual controller address. Ensure the PLC is in RUN mode.
Event ID: 10001: Tag read error. The HMI panel was unable to read a configured tag from the PLC.
Verify the tag address exists in the PLC program and the data block is not write-protected. Check communication settings in WinCC flexible project.
Event ID: 10002: Tag write error. The HMI panel was unable to write a value to a configured PLC tag.
Check that the target PLC data area is not read-only. Verify the tag address and data type match the PLC configuration.
Event ID: 20000: Project download error. A project transfer from the engineering PC to the HMI panel failed.
Ensure the transfer cable is correctly connected and the panel is in Transfer mode. Check that the WinCC flexible project is compiled without errors before transfer.
Event ID: 40000: System memory low. Available memory on the HMI panel is insufficient to load or run the current project.
Reduce the project size by optimizing graphics and removing unused elements. Delete unnecessary files from the panel memory using the Control Panel.
Event ID: 50000: Backup/restore error. A backup or restore operation of the HMI project or panel data failed.
Check the storage medium (memory card) for errors and ensure it has sufficient free space. Retry the backup/restore operation.
Event ID: 70000: Screen saver or runtime error. The HMI runtime application has encountered an unexpected error and may have terminated.
Restart the HMI panel. If the error persists, re-download the project from WinCC flexible and check for project configuration errors.

Frequently Asked Questions

What engineering software is required to configure the SIMATIC MP 277 (6AV6645-0AA01-0AX0)?

The MP 277 is configured using Siemens WinCC flexible 2008 or later versions. It is not compatible with TIA Portal WinCC Advanced without migration.

Which Siemens PLCs are compatible with this HMI panel?

The MP 277 communicates natively with Siemens S7-300 and S7-400 PLCs via MPI or PROFIBUS DP. It can also connect to S7-200 PLCs using the appropriate communication driver.

What is the supply voltage for the 6AV6645-0AA01-0AX0?

The panel requires a 24 V DC power supply. Ensure the supply is within the permissible voltage tolerance range specified in the operating instructions.

Does the MP 277 support recipe management and data logging?

Yes, the SIMATIC MP 277 supports recipe management, trend displays, alarm logging, and user administration functions when configured in WinCC flexible.

What is the front panel protection rating of this unit?

The front face of the MP 277 is rated IP65, making it resistant to dust and water jets. The rear of the unit is rated IP20.

Troubleshooting

Display remains blank after power on

Measure the 24 V DC supply voltage at the power connector. Check that the voltage is within the specified tolerance. Inspect the internal fuse if accessible.

Restore the correct 24 V DC supply. If the supply is correct and the display remains blank, the backlight or internal power supply board may be faulty and the unit should be sent for repair or replacement.

HMI panel does not communicate with the S7 PLC

Check the MPI or PROFIBUS DP cable for continuity and correct termination at both ends. Verify the bus address configured in the HMI project matches the physical PLC address. Confirm the PLC is powered and in RUN mode.

Replace or re-terminate the communication cable. Correct the bus address in the WinCC flexible project and re-download. Ensure only one active bus termination exists at each end of the network.

Touch screen does not respond or responds inaccurately

Check whether the touch screen responds at all by testing multiple areas. An inaccurate response may indicate the touch screen requires recalibration. A completely unresponsive screen may indicate hardware failure.

Recalibrate the touch screen using the calibration utility in the Windows CE Control Panel. If recalibration does not resolve the issue, the resistive touch overlay may need to be replaced.

Project transfer from PC to panel fails

Verify the panel is set to Transfer mode via the Start Center. Check the communication cable between the PC and panel. Confirm the correct transfer channel (MPI, PROFIBUS, or Ethernet if applicable) is selected in WinCC flexible.

Set the panel to Transfer mode manually. Use a known-good transfer cable. Ensure the PC firewall is not blocking the WinCC flexible transfer process and that the correct COM port or network adapter is selected.

Panel displays 'No project' or restarts repeatedly after power on

This may indicate a corrupted project file in the panel memory or an incomplete project download. Check if the panel boots to the Start Center or loops in a restart cycle.

Re-download the compiled WinCC flexible project to the panel. If the panel cannot reach Transfer mode, perform a factory reset using the Service menu accessible during boot, then re-download the project.

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