Siemens 6AV6646-1BC22-1AA0 SIMATIC KTP400 Basic

Name: Siemens 6AV6646-1BC22-1AA0 SIMATIC KTP400 Basic
Brand: Siemens
SKU: 6AV6646-1BC22-1AA0
Price: 1049.00 EUR
Availability: InStock

€ 1.049,00

Condition

Clear

SKU: 6AV6646-1BC22-1AA0 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6646-1BC22-1AA0 is a SIMATIC KTP400 Basic Panel, part of the SIMATIC Basic Panel series from Siemens. It is a compact 4-inch key and touch-operated HMI panel designed for straightforward machine-level visualization and operator control tasks. This unit provides an entry-level HMI solution within the SIMATIC HMI portfolio, offering reliable performance in a compact form factor.

The KTP400 Basic features a 4-inch TFT widescreen display with a resolution of 480 x 272 pixels and 64,000 color support, combined with 4 configurable function keys for tactile operator input alongside touch operation. It communicates via a PROFINET interface, enabling direct integration with SIMATIC S7-1200 and S7-1500 PLCs. The panel is configured using the TIA Portal engineering framework (WinCC Basic or higher) and supports a user memory of 10 MB for project data.

The KTP400 Basic is widely deployed in small to medium-sized machinery across manufacturing, packaging, food and beverage, and material handling industries. Its compact dimensions make it suitable for installation in confined control cabinet doors or machine panels where space is limited. The combination of touch and key operation makes it appropriate for environments where operators require both flexibility and tactile feedback during machine control.

Technical Specifications

Display Size	4 inch
Display Resolution	480 x 272 pixels
Display Colors	64,000 colors (16-bit)
Display Type	TFT widescreen
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	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
Dimensions (W x H x D)	137 x 101 x 38 mm
Panel Cutout	122 x 86 mm
Certifications	CE, UL, cULus
Configuration Software	TIA Portal with WinCC Basic V11 or higher

Common Error Codes and System Events

Event ID: 1000: Configuration error detected on the HMI panel. The project loaded on the device contains inconsistencies or is incompatible with the current firmware version.
Recompile and re-download the project from TIA Portal ensuring the firmware version matches the configured HMI target. Verify project integrity before transfer.
Event ID: 10000: Communication connection to the PLC has been lost or cannot be established. The panel cannot reach the configured controller via PROFINET.
Check the PROFINET cable and RJ45 connector integrity. Verify IP address configuration on both the HMI and PLC. Confirm the PLC is in RUN mode and the network switch is operational.
Event ID: 10001: Tag read/write error. The HMI panel is unable to read from or write to a specific PLC tag or data block address.
Verify that the PLC tag addresses referenced in the HMI project exist and are correctly defined in the PLC program. Check for data type mismatches between HMI and PLC tag definitions.
Event ID: 20000: System memory low warning. Available user memory on the HMI panel is insufficient to load or run the current project.
Reduce the project size by optimizing graphics, removing unused screens, or compressing images. Transfer the optimized project to the panel via TIA Portal.
Event ID: 40000: Firmware update failed or firmware version mismatch detected between the panel and the loaded project.
Perform a firmware update using the Siemens ProSave tool or TIA Portal. Ensure the firmware version on the device matches the version targeted in the engineering project.
Event ID: 50000: Internal device error or hardware fault detected. The panel has identified an internal system fault during self-diagnostics.
Perform a power cycle on the panel. If the error persists, reset the panel to factory defaults using the Start Center menu. Contact Siemens technical support or arrange for unit repair if the fault remains.
Event ID: 60000: Backup or restore operation failed. An error occurred during project backup or restore via ProSave or TIA Portal.
Check the USB connection or network path used for the backup/restore operation. Ensure sufficient free memory on the target medium and retry the operation with a freshly compiled project file.

Frequently Asked Questions

Which PLCs are compatible with the KTP400 Basic 6AV6646-1BC22-1AA0?

The KTP400 Basic is primarily designed for use with SIMATIC S7-1200 and S7-1500 PLCs via PROFINET. It can also communicate with S7-300 and S7-400 controllers through PROFINET connections when configured appropriately in TIA Portal.

What software is required to configure and program this HMI panel?

The KTP400 Basic must be configured using Siemens TIA Portal with at least the WinCC Basic engineering package (V11 or higher). WinCC Comfort or Advanced licenses are not required for this panel.

Does the KTP400 Basic support USB connectivity?

Yes, the KTP400 Basic includes a USB Type-A interface that can be used for project transfer, firmware updates, and connecting USB storage devices for data logging or recipe management.

What is the supply voltage for this panel?

The panel operates on 24 V DC with a typical power consumption of approximately 4.5 W. The supply must meet the SELV/PELV requirements as specified in the product manual.

Can the KTP400 Basic be mounted in portrait orientation?

The KTP400 Basic is designed for landscape orientation mounting. Portrait orientation is not supported by the standard hardware configuration or the TIA Portal project settings for this panel.

Troubleshooting

Display remains blank after power is applied

Measure the 24 V DC supply voltage at the panel power connector. Check that polarity is correct and voltage is within the 20.4 V to 28.8 V DC acceptable range. Inspect the supply cable for damage.

Correct the supply voltage or replace the power supply if out of range. If voltage is correct and display remains blank, perform a hard reset by holding the power button. If the panel does not recover, the internal power supply board may require replacement.

HMI panel cannot establish communication with the PLC

Verify the PROFINET IP address settings on both the HMI and PLC using TIA Portal. Use a network ping test to confirm basic network connectivity. Check the RJ45 cable and any intermediate network switches.

Assign correct and unique IP addresses to both devices within the same subnet. Replace the PROFINET cable if damaged. Ensure the PLC is in RUN mode and that the HMI device name is correctly assigned in the PLC hardware configuration.

Touchscreen does not respond or responds inaccurately to touch input

Check for physical damage or contamination on the touch surface. Attempt to recalibrate the touchscreen via the Start Center menu accessible during panel startup.

Clean the touch surface with a soft, dry cloth. Perform a touchscreen calibration from the Start Center. If inaccurate response persists after calibration, the resistive touch overlay may be damaged and the panel may require hardware repair or replacement.

Project download from TIA Portal fails or times out

Check the network connection between the engineering PC and the HMI panel. Verify that the panel IP address in TIA Portal matches the actual panel IP address shown in the Start Center. Ensure no firewall is blocking the TIA Portal communication port.

Set the correct IP address in TIA Portal to match the panel. Disable PC firewall temporarily to test connectivity. Use a direct Ethernet connection between PC and panel rather than through a network switch to isolate network issues.

Panel repeatedly restarts or enters a boot loop

This may indicate a corrupted project file on the panel or a firmware issue. Observe whether the panel reaches the Start Center before restarting, which would indicate a project-level fault rather than a firmware fault.

Access the Start Center during startup and delete the current project. Re-download a freshly compiled project from TIA Portal. If the boot loop occurs before the Start Center is reached, perform a firmware recovery using Siemens ProSave tool via USB or Ethernet.

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