Siemens 6AV6646-1BC22-1NA0 SIMATIC KTP400 Basic

Name: Siemens 6AV6646-1BC22-1NA0 SIMATIC KTP400 Basic
Brand: Siemens
SKU: 6AV6646-1BC22-1NA0
Price: 1051.00 EUR
Availability: InStock

€ 1.051,00

Condition

Clear

SKU: 6AV6646-1BC22-1NA0 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6646-1BC22-1NA0 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 panel belongs to the entry-level segment of the SIMATIC HMI portfolio and is engineered for cost-effective integration into small to mid-scale automation systems.

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 flexible operator interaction. It communicates via a single PROFINET interface, enabling seamless integration into Siemens TIA Portal-based automation architectures. The panel is configured exclusively using WinCC Basic (V13 or later) within the TIA Portal engineering framework, and offers 10 MB of user memory for project data. It 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.

The SIMATIC KTP400 Basic is widely deployed in manufacturing, packaging, food and beverage, and building automation applications where compact and reliable operator panels are required at the machine level. Its small form factor and PROFINET connectivity make it suitable for integration with Siemens S7-1200 and S7-1500 PLCs, as well as other PROFINET-capable controllers. The panel is particularly well-suited for applications requiring basic process visualization, alarm management, and operator input in space-constrained control cabinet installations.

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	1 x 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	WinCC Basic (TIA Portal V13 or later)

Common Error Codes and 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 connector integrity. Verify IP address configuration of both the panel and the PLC. Ensure the PLC is in RUN mode and the network switch or router is operational.
Event ID: 10001: Connection to PLC interrupted during runtime. The HMI lost communication with the configured controller.
Inspect PROFINET cabling for damage or loose connections. Verify PLC is powered and running. Check for IP address conflicts on the network.
Event ID: 20000: Project download error. A project could not be transferred to the panel successfully.
Ensure the TIA Portal project is compiled without errors. Verify the PC and panel are on the same network subnet. Retry the download after restarting the panel.
Event ID: 40000: Internal device error. A hardware or firmware fault has been detected within the panel.
Perform a factory reset of the panel. If the error persists, update the panel firmware via TIA Portal. Contact Siemens technical support if the fault remains after firmware update.
Event ID: 50000: Insufficient memory. The project data exceeds the available user memory on the panel.
Reduce the project size by removing unused screens, images, or variables. Recompile and re-download the project to the panel.
Event ID: 70000: Firmware update error. The firmware update process was interrupted or failed.
Restart the panel and reattempt the firmware update using TIA Portal. Ensure stable power supply and network connection during the update process.
Event ID: 3000: Tag read/write error. A configured tag could not be read from or written to the PLC.
Verify the tag address in the TIA Portal project matches the actual PLC data block or memory address. Check PLC program for correct data type definitions.

Frequently Asked Questions

Which PLCs are compatible with the SIMATIC KTP400 Basic (6AV6646-1BC22-1NA0)?

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

What engineering software is required to configure this panel?

The KTP400 Basic must be configured using WinCC Basic, which is included in the Siemens TIA Portal software package (version V13 or later). It is not compatible with WinCC flexible or older SIMATIC ProTool software.

What is the display size and resolution of the KTP400 Basic?

The panel features a 4-inch widescreen TFT display with a resolution of 480 x 272 pixels and supports 64,000 colors.

Does the KTP400 Basic support USB connectivity?

The 6AV6646-1BC22-1NA0 does not include a USB interface. Project transfer and firmware updates are performed exclusively via the PROFINET Ethernet interface.

What is the front panel protection rating of this HMI?

The front face of the KTP400 Basic is rated IP65, providing full protection against dust ingress and protection against low-pressure water jets, making it suitable for installation in industrial control panels.

Troubleshooting

Display remains blank after power on

Measure the 24 V DC supply voltage at the panel's power connector. Verify polarity is correct and voltage is within the specified range. Check for blown fuses in the power supply circuit.

Correct any wiring errors or supply voltage issues. If the supply voltage is confirmed correct and the display remains blank, the internal power supply or display backlight may have failed, requiring panel repair or replacement.

Touchscreen does not respond or responds inaccurately

Check whether the function keys still respond, which would indicate the panel is powered and running. Inspect the touch screen surface for physical damage, contamination, or moisture.

Clean the touch screen surface with a soft, dry cloth. If inaccurate touch response persists, perform a touch screen calibration via the panel's Start Center menu. If the touch screen is unresponsive, the touch layer may require replacement.

Panel cannot establish communication with the PLC

Verify the PROFINET IP address settings on both the panel and the PLC using TIA Portal. Use a network diagnostic tool or ping command to confirm network connectivity between the devices.

Ensure both devices are on the same subnet and that no IP address conflicts exist. Check the PROFINET cable and RJ45 connectors for damage. Re-download the project to the panel after correcting any configuration errors.

Project download fails from TIA Portal to the panel

Confirm the panel is in Transfer mode, accessible via the Start Center on the panel. Verify the PC and panel share the same network subnet and that no firewall is blocking the connection.

Set the panel to Transfer mode manually via the Start Center. Disable any PC firewall temporarily during download. Ensure the TIA Portal project is fully compiled without errors before initiating the transfer.

Panel repeatedly restarts or enters a boot loop

Check the 24 V DC supply for voltage stability and ripple. Inspect the project for configuration errors that may cause a runtime crash. Connect a PC via PROFINET and monitor for system event messages in TIA Portal.

Ensure the power supply provides stable 24 V DC within the specified tolerance. Perform a factory reset via the Start Center to clear any corrupted project data, then re-download a verified project from TIA Portal.

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