Siemens 6AV6641-0AC01-0AX0 TP177A

€ 414,00

SKU: 6AV6641-0AC01-0AX0 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6641-0AC01-0AX0 is a TP177A touch panel HMI device belonging to the SIMATIC HMI 177 series from Siemens. It is a compact operator panel designed for machine-level visualization and control tasks in industrial automation environments. This unit features a 5.7-inch STN color display and is operated via resistive touchscreen input.

The TP177A supports communication via MPI and PROFIBUS-DP interfaces, enabling direct integration with Siemens SIMATIC S7-200, S7-300, and S7-400 PLCs. It is configured using WinCC flexible 2005 or later engineering software. The panel operates on a 24 V DC supply and is rated IP65 on the front face, providing protection against dust and water ingress in industrial environments. Internal memory supports the storage of project data, recipes, and alarm logs.

The TP177A is widely used in machine building, packaging machinery, conveyor systems, and general factory automation where a compact, cost-effective HMI solution is required. Its PROFIBUS-DP connectivity makes it suitable for integration into distributed automation architectures. The panel's rugged front panel construction and IP65 rating make it appropriate for installation in control cabinet doors in manufacturing and process environments.

Technical Specifications

Display Size	5.7 inch
Display Type	STN color LCD
Display Colors	256 colors
Display Resolution	320 x 240 pixels (QVGA)
Touch Technology	Resistive touchscreen
Input Voltage	24 V DC
Power Consumption	Max. 6 W
Communication Interface	MPI, PROFIBUS-DP
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
Engineering Software	WinCC flexible 2005 or later

Common Error Codes and System Events

Event ID: 10000: Communication error between HMI panel and connected PLC. The configured connection to the controller cannot be established or has been interrupted.
Check MPI or PROFIBUS-DP cable connections and termination resistors. Verify PLC address settings match the HMI project configuration. Ensure the PLC is powered and in RUN mode.
Event ID: 10001: Connection to PLC was interrupted during runtime operation.
Inspect communication cable integrity. Check bus termination and cable shielding. Verify that no address conflicts exist on the MPI or PROFIBUS network.
Event ID: 20000: Project download error. Transfer of the HMI project from the engineering PC to the panel failed.
Verify the transfer cable connection. Ensure the panel is set to Transfer mode. Check that the WinCC flexible project is compatible with the TP177A firmware version.
Event ID: 40000: Internal device error or hardware fault detected on the HMI panel.
Perform a panel restart. If the fault persists, check the 24 V DC supply voltage. A hardware failure may require repair or replacement of the unit.
Event ID: 50000: Insufficient memory available for project data or runtime operation.
Reduce the size of the HMI project, including the number of screens, images, and recipe entries. Delete unnecessary data from the panel memory before reloading the project.
Event ID: 70000: Firmware update error. The firmware update process on the panel was not completed successfully.
Retry the firmware update using ProSave or WinCC flexible. Ensure the power supply is stable during the update process and that the correct firmware version for the TP177A is used.

Frequently Asked Questions

Which PLCs are compatible with the TP177A 6AV6641-0AC01-0AX0?

The TP177A is compatible with Siemens SIMATIC S7-200, S7-300, and S7-400 PLCs via MPI or PROFIBUS-DP communication interfaces. It can also communicate with S7-200 via the PPI protocol.

What engineering software is required to configure this HMI panel?

The TP177A is configured using Siemens WinCC flexible 2005 or a later version. The project is transferred to the panel via a PC adapter cable or MPI/PROFIBUS connection.

What is the display resolution and color depth of the TP177A?

The TP177A features a 5.7-inch STN color display with a resolution of 320 x 240 pixels (QVGA) and supports 256 colors.

What is the front panel protection rating of this unit?

The front panel of the TP177A is rated IP65, providing full protection against dust ingress and protection against low-pressure water jets.

What supply voltage does the TP177A require?

The TP177A operates on a 24 V DC supply voltage. Maximum power consumption is approximately 6 W.

Troubleshooting

Display remains blank after power is applied

Measure the 24 V DC supply voltage at the power connector on the rear of the panel. Check for correct polarity. Inspect the internal fuse if accessible.

Ensure the power supply provides a stable 24 V DC within the specified tolerance. Replace the power supply if voltage is out of range. If the supply is correct and the display remains blank, the panel may require internal repair or replacement of the backlight.

HMI panel shows communication error to PLC at startup

Check the MPI or PROFIBUS-DP cable connections at both the panel and PLC ends. Verify bus termination resistors are correctly placed at both ends of the bus segment. Confirm the PLC station address in the HMI project matches the physical PLC address.

Replace or reseat communication cables. Correct any address mismatches in the WinCC flexible project and re-download the project to the panel. Ensure only one active bus termination exists at each end of the segment.

Touchscreen does not respond or responds inaccurately to touch input

Attempt to recalibrate the touchscreen via the panel's Start Center or Control Panel menu. Check for physical damage or contamination on the touch surface.

Perform a touchscreen calibration using the built-in calibration utility accessible from the panel's operating system menu. Clean the touch surface with a soft, dry cloth. If calibration does not resolve the issue, the touchscreen overlay may need replacement.

Project download from PC to panel fails repeatedly

Verify that the panel is in Transfer mode (accessible from the Start Center). Check the communication cable between the PC and the panel. Confirm that the WinCC flexible project version is compatible with the installed panel firmware.

Set the panel to Transfer mode before initiating the download. Use a known-good PC adapter cable. Update the panel firmware using ProSave if a version mismatch is detected, then retry the project download.

Panel restarts unexpectedly during operation

Monitor the 24 V DC supply voltage for voltage dips or instability under load. Check the ambient temperature around the panel installation to ensure it is within the 0 to 50 °C operating range.

Install a regulated, adequately rated 24 V DC power supply dedicated to the HMI panel. Improve ventilation around the control cabinet if overheating is suspected. If restarts persist with a stable supply, the panel may have an internal hardware fault requiring repair.

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