Siemens 6AV6646-1AC22-0AX0 SIMATIC KTP400 Basic

Name: Siemens 6AV6646-1AC22-0AX0 SIMATIC KTP400 Basic
Brand: Siemens
SKU: 6AV6646-1AC22-0AX0
Price: 913.00 EUR
Availability: InStock

€ 913,00

Condition

Clear

SKU: 6AV6646-1AC22-0AX0 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6646-1AC22-0AX0 is a SIMATIC KTP400 Basic Panel, part of the SIMATIC Basic Panel series from Siemens. It is a compact key and touch-operated HMI panel featuring a 4-inch widescreen TFT display, designed for straightforward machine-level visualization tasks. This panel is intended for use with Siemens SIMATIC S7-1200 and S7-300 PLCs and is configured using the SIMATIC WinCC Basic engineering software included with TIA Portal.

The KTP400 Basic features a 4-inch TFT display with a resolution of 480 x 272 pixels and 64,000 colors, providing clear process visualization. It includes 4 configurable function keys and a resistive touch screen for operator input. Communication is handled via a single PROFINET interface (RJ45), enabling direct integration into standard Ethernet-based automation networks. The panel operates on 24 V DC supply voltage and offers a user memory of 10 MB for project data. It supports alarm management, recipe handling, and trend display functions within the WinCC Basic environment.

The SIMATIC KTP400 Basic is widely used in small to medium-scale machine automation, particularly in packaging machinery, conveyor systems, and general-purpose industrial equipment. Its compact form factor and PROFINET connectivity make it suitable for applications where panel space is limited but reliable operator interaction is required. The panel is commonly found in industries such as food and beverage, automotive assembly, and material handling.

Technical Specifications

Display Size	4 inch
Display Type	TFT widescreen
Display Resolution	480 x 272 pixels
Display Colors	64,000 colors
Touch Technology	Resistive touch screen
Function Keys	4 configurable function keys
Input Voltage	24 V DC
Power Consumption	4.5 W (typical)
Communication Interface	PROFINET (RJ45)
User Memory	10 MB
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	SIMATIC WinCC Basic (TIA Portal)

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 lost.
Check PROFINET cable and RJ45 connector integrity. Verify the PLC IP address and project communication settings in TIA Portal. Ensure the PLC is in RUN mode.
Event ID: 10001: Connection to PLC interrupted during runtime. The HMI lost communication with the configured controller.
Inspect network cabling and switch/router configuration. Check for IP address conflicts on the network. Restart the HMI and PLC if the connection is not restored automatically.
Event ID: 20000: Project download error. The project could not be transferred to the HMI panel successfully.
Verify the PC and HMI are on the same network subnet. Check firewall settings on the engineering PC. Retry the download via TIA Portal and ensure the correct HMI target is selected.
Event ID: 40000: Tag read/write error. A configured tag could not be read from or written to the PLC.
Verify the tag address and data type in the WinCC Basic project. Confirm the corresponding data block or memory area exists in the PLC program. Check for PLC access protection settings.
Event ID: 50000: System memory low. The available runtime memory on the HMI panel is insufficient for the current project.
Reduce the number of active alarms, trends, or recipe entries in the project. Optimize the project in TIA Portal and reload. Consider reducing image complexity.
Event ID: 70000: Backup/restore error. A project backup or restore operation failed on the HMI panel.
Ensure the USB device or memory medium is properly formatted and has sufficient free space. Retry the backup or restore operation. Check that the project version is compatible with the panel firmware.
Event ID: 110000: Firmware update error. The firmware update process on the HMI panel was interrupted or failed.
Restart the panel and reattempt the firmware update using ProSave or TIA Portal. Ensure the correct firmware version for the KTP400 Basic is used and that the power supply is stable during the update process.

Frequently Asked Questions

Which PLCs are compatible with the SIMATIC KTP400 Basic (6AV6646-1AC22-0AX0)?

The KTP400 Basic is primarily designed for use with Siemens SIMATIC S7-1200 and S7-300 PLCs via PROFINET. It can also communicate with S7-400 and other SIMATIC controllers that support PROFINET connections.

What software is required to configure the KTP400 Basic panel?

The panel is configured using SIMATIC WinCC Basic, which is included with the TIA Portal engineering framework. A compatible version of TIA Portal must be used to create and download projects to this panel.

What is the display resolution and touch technology of this panel?

The KTP400 Basic features a 480 x 272 pixel TFT widescreen display with resistive touch technology, supporting 64,000 colors. It also includes 4 physical function keys for additional operator input.

What is the IP protection rating of the KTP400 Basic?

The front of the panel is rated IP65, making it suitable for environments where dust and water jets may be present. The rear of the panel is rated IP20.

Can the KTP400 Basic be used with third-party PLCs?

The KTP400 Basic is optimized for Siemens SIMATIC controllers and its configuration toolchain is tightly integrated with TIA Portal. Communication with third-party PLCs is not natively supported through WinCC Basic for this panel series.

Troubleshooting

Display remains blank after power on

Measure the 24 V DC supply voltage at the panel power connector. Check that polarity is correct and voltage is within the specified range (20.4 V DC to 28.8 V DC).

Correct any wiring errors or supply voltage issues. If the supply voltage is correct and the display remains blank, the internal power supply or backlight may be faulty and the unit should be inspected for repair or replacement.

HMI panel cannot establish communication with the PLC

Verify the PROFINET cable connection at both the panel RJ45 port and the PLC or network switch. Check the IP address configuration on the panel via the Start Center settings menu and compare with the project configuration in TIA Portal.

Correct any IP address mismatches or subnet conflicts. Replace the PROFINET cable if damaged. Ensure the PLC is powered and in RUN mode, then restart the HMI panel to re-establish the connection.

Touch screen does not respond to input or responds inaccurately

Check for physical damage or contamination on the touch screen surface. Resistive touch screens can be affected by excessive pressure, scratches, or liquid ingress. Access the touch calibration function via the panel Start Center.

Clean the touch screen surface with a soft, dry cloth. Perform a touch screen recalibration from the Start Center. If the touch screen remains unresponsive after calibration, the touch overlay may require replacement.

Project download from TIA Portal fails

Confirm that the engineering PC and the KTP400 Basic panel are on the same IP subnet. Check that no firewall or antivirus software is blocking the TIA Portal communication. Verify the panel is in transfer mode via the Start Center.

Adjust PC network adapter settings to match the panel subnet. Temporarily disable firewall software during download. Set the panel to transfer mode manually if automatic transfer is not triggered, then retry the download from TIA Portal.

Panel displays 'No project' or starts in Start Center after power cycle

This indicates that no valid project is stored on the panel, or the project was lost due to a failed download or memory issue. Check the panel memory status in the Start Center.

Re-download the project from TIA Portal to the panel. Ensure the download completes without interruption and that the power supply is stable throughout the transfer process. If the issue recurs, check for panel memory faults.

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