Siemens 6AV6646-1BD24-0AA1 SIMATIC KTP400 Basic

Name: Siemens 6AV6646-1BD24-0AA1 SIMATIC KTP400 Basic
Brand: Siemens
SKU: 6AV6646-1BD24-0AA1
Price: 1075.00 EUR
Availability: InStock

€ 1.075,00

Condition

Clear

SKU: 6AV6646-1BD24-0AA1 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6646-1BD24-0AA1 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 and operator control tasks. This unit belongs to the entry-level HMI segment within the SIMATIC HMI portfolio and is configured and programmed using Siemens WinCC Basic software within the TIA Portal engineering framework.

The KTP400 Basic features a 4-inch TFT display with a resolution of 480 x 272 pixels and 64,000 color support, combined with a resistive touch screen and 4 configurable function keys for direct operator input. It communicates via a single PROFINET interface (RJ45), enabling integration into standard Ethernet-based automation networks. The panel operates on a 24 V DC supply and offers 10 MB of user memory for project data, along with a USB interface for project transfer and data backup. The unit is rated IP65 on the front face, making it suitable for panel-mount installations in industrial environments.

The SIMATIC KTP400 Basic is widely used in small to medium-scale machine automation across industries such as packaging, food and beverage, material handling, and general manufacturing. Its compact 4-inch form factor makes it ideal for space-constrained control cabinet doors and machine panels where basic process visualization, parameter setting, and alarm display are required. The PROFINET connectivity ensures straightforward integration with Siemens S7-1200 and S7-1500 PLCs as well as other PROFINET-compatible controllers.

Technical Specifications

Display Size	4 inch (widescreen)
Display Resolution	480 x 272 pixels
Display Colors	64,000 colors
Display Type	TFT
Touch Technology	Resistive touch screen
Function Keys	4 configurable function keys
Input/Operating Voltage	24 V DC
Power Consumption	4.5 W (typical)
Communication Interface	1x PROFINET (RJ45)
USB Interface	1x USB Type A (host)
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/Protection Rating	IP65 (front), IP20 (rear)
Mounting	Panel mounting
Certifications	CE, UL, cULus
Engineering Software	WinCC Basic (TIA Portal)

Common Error Codes and System Events

Event ID: 010000: Configuration error: The project loaded on the panel contains configuration errors or is incompatible with the panel type.
Recompile and re-download the project from TIA Portal ensuring the correct panel type and firmware version are selected.
Event ID: 040000: Communication error: The HMI panel cannot establish or has lost communication with the configured PLC controller.
Check PROFINET cable connections and IP address configuration on both the HMI and PLC. Verify the PLC is in RUN mode and the network settings match the project configuration.
Event ID: 070000: Tag read/write error: A configured tag cannot be read from or written to the connected controller.
Verify the tag address exists in the PLC program and that the data type matches the HMI tag configuration in TIA Portal. Check communication link status.
Event ID: 080000: Alarm buffer overflow: The alarm buffer on the HMI panel has reached its maximum capacity.
Acknowledge and clear pending alarms. Review the alarm configuration in TIA Portal to ensure alarm logging is correctly set up and archive alarms to external storage if required.
Event ID: 110000: Project transfer error: A project download or transfer to the panel has failed or been interrupted.
Check the USB or PROFINET connection used for transfer. Ensure the panel is in transfer mode and that the TIA Portal project is compiled without errors before retrying the download.
Event ID: 140000: System memory low: Available system memory on the panel is critically low, which may affect panel performance.
Reduce the number of active screens, images, or logged data in the project. Delete unnecessary data from panel memory and optimize the project in TIA Portal.
Event ID: 170000: Firmware update error: A firmware update process on the panel has failed or was interrupted.
Retry the firmware update using the ProSave tool or TIA Portal. Ensure stable power supply during the update and use the correct firmware version for the KTP400 Basic panel.

Frequently Asked Questions

Which PLCs are compatible with the SIMATIC KTP400 Basic (6AV6646-1BD24-0AA1)?

The KTP400 Basic is primarily designed for use with Siemens S7-1200 and S7-1500 PLCs via PROFINET. It can also communicate with other PROFINET-compatible controllers supported by WinCC Basic in TIA Portal.

What software is required to program the KTP400 Basic panel?

The panel is configured and programmed using Siemens WinCC Basic, which is included within the TIA Portal engineering software suite. A compatible version of TIA Portal must be used that supports the panel firmware version.

What is the supply voltage for the 6AV6646-1BD24-0AA1?

The panel requires a 24 V DC power supply. Ensure the supply is within the specified tolerance range and adequately rated for the panel's power consumption.

How is the project transferred to the KTP400 Basic panel?

Projects can be transferred to the panel via the PROFINET (Ethernet) interface or via the USB Type A host port using a USB storage device. The panel must be set to transfer mode before initiating the download from TIA Portal.

What is the front panel protection rating of the KTP400 Basic?

The front face of the KTP400 Basic is rated IP65, providing protection against dust ingress and low-pressure water jets, making it suitable for panel-mount installations in typical industrial environments.

Troubleshooting

Display remains blank after power on

Check the 24 V DC supply voltage at the panel power connector. Verify the supply is within tolerance and the connector is fully seated. Check for any blown fuses in the control cabinet supply circuit.

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

HMI panel shows 'No connection to PLC' or communication error on screen

Verify the PROFINET cable is connected and undamaged. Check the IP address settings on both the HMI panel (via Start Center settings) and the PLC. Confirm the PLC is powered and in RUN mode.

Correct any IP address mismatches between the HMI project configuration and the actual PLC settings. Replace the PROFINET cable if damaged. Ensure the network switch or direct connection is functioning correctly.

Touchscreen does not respond or responds inaccurately to touch input

Check whether the function keys still operate correctly to isolate whether the issue is specific to the touch layer. Inspect the screen surface for damage, contamination, or excessive moisture.

Clean the screen surface with a soft dry cloth. Recalibrate the resistive touch screen via the panel's Start Center settings menu. If calibration does not resolve the issue, the touch panel overlay may require replacement.

Project download from TIA Portal fails or times out

Verify the PROFINET connection between the engineering PC and the panel. Confirm the panel is in transfer mode (accessible via the Start Center). Check that the TIA Portal project is compiled without errors and the correct panel type and firmware version are targeted.

Place the panel in transfer mode manually via the Start Center. Ensure the PC and panel are on the same network subnet. Retry the download. If the issue persists, use ProSave to restore the panel to factory settings before attempting the download again.

Panel repeatedly restarts or enters an error loop after project load

The loaded project may contain configuration errors or be incompatible with the installed firmware version. Check the panel's diagnostic buffer via TIA Portal online diagnostics for specific event IDs.

Recompile the project in TIA Portal ensuring no errors are present and the correct panel firmware version is targeted. Re-download the project. If the panel cannot be reached, use the Start Center to delete the current project and reload a known-good version.

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