Siemens 6AV6644-0AA01-2AX0 MP 277

Name: Siemens 6AV6644-0AA01-2AX0 MP 277
Brand: Siemens
SKU: 6AV6644-0AA01-2AX0
Availability: InStock

Price range: € 1.714,00 through € 2.329,46

Condition

Clear

SKU: 6AV6644-0AA01-2AX0 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6644-0AA01-2AX0 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 features a 8-inch widescreen TFT display and is part of the MP 277 series, which offers a robust and versatile platform for process visualization. It is engineered to interface with Siemens SIMATIC PLCs as well as third-party controllers via a range of communication protocols.

The MP 277 (6AV6644-0AA01-2AX0) is equipped with a touch-sensitive screen utilizing resistive touch technology, enabling intuitive operator interaction. It supports communication via PROFIBUS DP and MPI interfaces, as well as Ethernet (PROFINET), allowing flexible integration into existing network architectures. The panel runs on the WinCC flexible runtime environment, providing a powerful configuration platform, and includes 12 MB of user memory for project data. It operates on a 24 V DC supply and meets IP65 protection on the front face, making it suitable for panel-mount installations in demanding environments.

The MP 277 is widely deployed in manufacturing, automotive, food and beverage, and process industries where reliable operator interface terminals are required at the machine level. Its compatibility with the full range of SIMATIC S7 PLCs, combined with its communication flexibility, makes it a practical choice for both new installations and system upgrades. The panel is commonly found on packaging machines, conveyor systems, and production lines where clear process visualization and operator input are essential.

Technical Specifications

Display Size	8 inch (widescreen)
Display Type	TFT color LCD
Display Resolution	800 x 480 pixels
Display Colors	65,536 colors
Touch Technology	Resistive touch screen
Input/Operating Voltage	24 V DC
Power Consumption	Approx. 14 W
User Memory	12 MB
Communication Interface	PROFIBUS DP/MPI, Ethernet (PROFINET), USB
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
Relative Humidity	10% to 90% (non-condensing)
IP Rating (Front)	IP65
IP Rating (Rear)	IP20
Mounting	Panel mounting
Certifications	CE, UL, cULus

Common Error Codes & System Events

Event ID: 10000: Communication error between the HMI panel and the configured PLC controller.
Check the communication cable and connections. Verify the PLC address and communication parameters in the WinCC flexible project match the hardware configuration.
Event ID: 10001: Connection to the PLC was interrupted during runtime.
Inspect the PROFIBUS or Ethernet cable for damage. Confirm the PLC is powered and running. Check for address conflicts on the network.
Event ID: 20000: Project download error; the project could not be transferred to the panel.
Ensure the PC and panel are on the same network or connected via USB. Verify the WinCC flexible version compatibility and retry the transfer.
Event ID: 40000: System memory low; available runtime memory is insufficient for the loaded project.
Reduce the project size by optimizing graphics and scripts. Delete unused project data and perform a clean download to the panel.
Event ID: 50000: Internal device error or hardware fault detected on the panel.
Perform a panel restart. If the fault persists, back up the project and perform a factory reset. Contact Siemens support or arrange for hardware inspection if the error recurs.
Event ID: 70000: Configuration error detected; a configured object or tag is invalid or missing.
Review the WinCC flexible project for missing or incorrectly configured tags. Recompile and re-download the project to the panel.
Event ID: 110000: Recipe data error; recipe records could not be read or written correctly.
Check the recipe configuration in the project. Verify that the target memory location has sufficient space and that the recipe structure matches the PLC data blocks.

Frequently Asked Questions

What communication interfaces are available on the 6AV6644-0AA01-2AX0?

The MP 277 (6AV6644-0AA01-2AX0) supports PROFIBUS DP/MPI and Ethernet (PROFINET) for PLC communication, along with USB ports for project transfer and peripheral connection.

Which PLCs are compatible with this HMI panel?

The panel is primarily designed for use with Siemens SIMATIC S7-200, S7-300, and S7-400 PLCs, but also supports third-party controllers via configurable communication drivers in WinCC flexible.

What software is used to configure the MP 277?

The MP 277 is configured using Siemens WinCC flexible software. The project is compiled and downloaded to the panel via Ethernet or USB connection.

What is the display resolution of the 6AV6644-0AA01-2AX0?

The display resolution is 800 x 480 pixels on an 8-inch widescreen TFT color LCD capable of displaying 65,536 colors.

What is the front panel protection rating of this HMI?

The front face of the MP 277 carries an IP65 protection rating, making it resistant to dust and water jets, suitable for panel-mount 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 supply is within the specified tolerance range.

Correct any supply voltage issues. If the supply is confirmed good, check the internal fuse and inspect the panel for signs of hardware damage. A faulty backlight or internal power board may require panel repair or replacement.

HMI panel fails to communicate with the PLC

Verify the communication cable connections at both the panel and PLC ends. Check the configured PLC address, baud rate, and protocol settings in the WinCC flexible project against the actual PLC hardware configuration.

Replace or reseat the communication cable. Correct any mismatched address or protocol settings in the project and re-download. Ensure no address conflicts exist on the PROFIBUS or Ethernet network.

Touchscreen does not respond or responds inaccurately

Check for physical damage or contamination on the touch surface. Attempt a touchscreen recalibration via the panel's Control Panel settings in the Start Center.

Clean the touch surface with a soft, dry cloth. Perform a touchscreen calibration from the panel's operating system menu. If inaccurate response persists after calibration, the resistive touch overlay may require replacement.

Project download fails or times out

Confirm the network or USB connection between the engineering PC and the panel is active. Check that the WinCC flexible version used to create the project is compatible with the panel's firmware version.

Update the panel firmware if a version mismatch is detected. Use a direct USB connection if network transfer is unreliable. Ensure no firewall or antivirus software is blocking the transfer on the engineering PC.

Panel repeatedly reboots or shows a system error on startup

Attempt to boot the panel into the Start Center (Transfer mode) by pressing the appropriate key during startup. Check if the installed project is corrupted or incompatible with the current firmware.

Perform a clean project download from WinCC flexible. If the panel cannot boot normally, use the Transfer mode to overwrite the project. As a last resort, perform a factory reset via the Start Center and re-download the project.

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