Siemens 6AV6646-1BB22-1AA0 SIMATIC KTP400 Basic

Name: Siemens 6AV6646-1BB22-1AA0 SIMATIC KTP400 Basic
Brand: Siemens
SKU: 6AV6646-1BB22-1AA0
Price: 1049.00 EUR
Availability: InStock

€ 1.049,00

Condition

Clear

SKU: 6AV6646-1BB22-1AA0 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6646-1BB22-1AA0 is a SIMATIC KTP400 Basic panel belonging to the Basic Panel 2nd Generation family 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 a cost-effective entry-level HMI solution within the SIMATIC HMI portfolio, suitable for applications requiring a small form factor display with basic functionality.

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 a resistive touch screen and 4 configurable function keys. It communicates via a PROFINET interface (RJ45) and is configured using the WinCC Basic engineering software included with TIA Portal. The panel operates on a 24 V DC supply and offers 10 MB of user memory for project data, with an operating temperature range of 0 to 50 degrees Celsius and an IP65 protection rating on the front face.

The SIMATIC KTP400 Basic is widely used in small machinery, conveyor systems, packaging equipment, and building automation where a compact operator interface is required. Its PROFINET connectivity makes it directly compatible with SIMATIC S7-1200 and S7-1500 PLCs, making it a natural fit for modernization projects and new machine builds in manufacturing and process industries. The small panel cutout requirement and low power consumption make it suitable for integration into compact control cabinets and machine doors.

Technical Specifications

Display Size	4 inch
Display Resolution	480 x 272 pixels
Display Colors	64,000 colors
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 (1x RJ45)
User Memory	10 MB
Operating Temperature	0 to 50 °C
Storage Temperature	-20 to 60 °C
Relative Humidity	10 to 90 % (non-condensing)
IP Rating (Front)	IP65
IP Rating (Rear)	IP20
Certifications	CE, UL, cULus
Engineering Software	WinCC Basic (TIA Portal)
Mounting	Panel mounting

Common Error Codes and System Events

Event ID: 10000: Configuration error detected on the HMI panel, typically caused by an incompatible or corrupt project file loaded onto the device.
Reload the project using TIA Portal WinCC Basic. Verify that the project was compiled without errors before transferring to the panel.
Event ID: 20000: Communication connection to the configured PLC controller has been lost or cannot be established.
Check PROFINET cable and RJ45 connector integrity. Verify IP address settings on both the panel and the PLC. Ensure the PLC is in RUN mode.
Event ID: 40000: Tag read/write error. The HMI is unable to read from or write to a configured PLC tag or data block.
Verify the PLC tag addresses in the TIA Portal project. Ensure the data block or memory area referenced exists in the PLC program and the PLC is accessible.
Event ID: 70000: System memory low warning. Available memory on the HMI panel for runtime operation is critically low.
Reduce the project size by removing unused images, scripts, or archive data. Transfer the optimized project back to the panel.
Event ID: 50000: Transfer mode active. The panel is waiting for a project transfer from the engineering station.
Initiate project transfer from TIA Portal, or restart the panel to exit transfer mode if no transfer is intended.
Event ID: 30000: Incorrect or missing operating system version. The panel firmware may be incompatible with the loaded project.
Update the panel firmware using ProSave or TIA Portal to match the version required by the project. Perform a factory reset if necessary.

Frequently Asked Questions

Which PLCs are compatible with the SIMATIC KTP400 Basic 6AV6646-1BB22-1AA0?

The KTP400 Basic communicates via PROFINET and is primarily designed for use with Siemens SIMATIC S7-1200 and S7-1500 PLCs. It can also communicate with S7-300 and S7-400 PLCs that have a PROFINET interface.

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

The KTP400 Basic is configured exclusively using WinCC Basic, which is included with the TIA Portal engineering software package. It is not compatible with older WinCC flexible software.

What is the supply voltage for the 6AV6646-1BB22-1AA0?

The panel requires a 24 V DC power supply. The permissible voltage range is typically 19.2 V DC to 28.8 V DC.

Does the KTP400 Basic support data logging or recipe management?

The KTP400 Basic supports basic recipe management and limited data logging functionality within the constraints of its 10 MB user memory. Advanced logging features are limited compared to higher-tier Comfort panels.

What is the panel cutout size required for mounting the KTP400 Basic?

The required panel cutout for the KTP400 Basic is approximately 122 x 90 mm (width x height). Always refer to the current Siemens operating instructions for exact cutout dimensions before installation.

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. Verify polarity is correct and voltage is within the 19.2 to 28.8 V DC range.

Correct the supply voltage or wiring if out of range. If voltage is correct and display remains blank, the internal power supply or backlight may be faulty and the unit should be sent for repair or replacement.

Panel shows 'No connection to PLC' or communication error at runtime

Check the PROFINET RJ45 cable connection at both the panel and the PLC or switch. Verify the IP address configured in the TIA Portal project matches the actual panel IP address set in the panel's Start Center.

Replace the Ethernet cable if damaged. Correct the IP address settings on the panel via the Start Center menu. Ensure the PLC is powered and in RUN mode, and that no IP address conflicts exist on the network.

Touchscreen is unresponsive or registers incorrect touch positions

Inspect the display surface for damage, contamination, or excessive pressure points. Resistive touch screens can drift over time or after physical impact.

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

Project transfer from TIA Portal fails or times out

Verify that the panel is in Transfer mode (accessible via the Start Center) and that the engineering PC and panel are on the same network subnet. Check firewall settings on the PC that may block TIA Portal communication.

Set the panel to Transfer mode manually via the Start Center. Disable PC firewall temporarily to test connectivity. Ensure the correct panel IP address is entered in the TIA Portal transfer settings.

Panel repeatedly restarts or enters a boot loop after project download

The downloaded project may be corrupt, incompatible with the current firmware version, or exceed the available memory of the panel.

Perform a factory reset on the panel via the Start Center to clear the existing project. Update the panel firmware using ProSave to match the TIA Portal version, then re-transfer the compiled project.

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