Siemens 6AV6646-1BA24-0NA1 SIMATIC KTP400 Basic

Name: Siemens 6AV6646-1BA24-0NA1 SIMATIC KTP400 Basic
Brand: Siemens
SKU: 6AV6646-1BA24-0NA1
Price: 987.00 EUR
Availability: InStock

€ 987,00

Condition

Clear

SKU: 6AV6646-1BA24-0NA1 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6646-1BA24-0NA1 is a SIMATIC KTP400 Basic panel, part of the Basic Panel 2nd Generation family from Siemens. It is a compact 4-inch key and touch-operated HMI panel designed for straightforward visualization and operator control tasks. This unit belongs to the SIMATIC HMI Basic Panel portfolio, which is engineered for cost-effective machine-level HMI applications.

The KTP400 Basic features a 4.3-inch widescreen TFT display with a resolution of 480 x 272 pixels and 64,000 color support, providing clear process visualization. It combines touch operation with 4 configurable function keys for flexible operator interaction. The panel communicates via PROFINET (Ethernet) interface, enabling seamless integration into modern automation networks. Configuration is performed using Siemens TIA Portal (WinCC Basic), and the unit supports a project memory of 10 MB. The operating system is based on Windows CE, and the panel supports recipe management, alarm logging, and trend displays.

The SIMATIC KTP400 Basic is widely used in machine building, packaging machinery, conveyor systems, and small-scale process automation where a compact and cost-efficient HMI solution is required. Its PROFINET connectivity makes it directly compatible with Siemens S7-1200 and S7-1500 PLC families, as well as third-party controllers supporting standard Ethernet communication. The panel's compact form factor and low power consumption make it suitable for installation in confined control cabinet doors or machine panels.

Technical Specifications

Display Size	4.3 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 (1x RJ45 Ethernet)
Project 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)	155 x 116 x 39 mm
Panel Cutout	138 x 99 mm
Certifications	CE, UL, cULus
Configuration Software	TIA Portal WinCC Basic V13 or higher
Series/Product Family	SIMATIC HMI Basic Panel 2nd Generation

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 interrupted.
Check PROFINET cable and RJ45 connector integrity. Verify IP address configuration on both the panel and PLC. Ensure the PLC is in RUN mode and the network settings match the TIA Portal project configuration.
Event ID: 10001: Connection to PLC lost during runtime. The HMI panel has detected a timeout on the configured PROFINET connection.
Check physical network connection and switch/router status. Verify PLC is powered and running. Review network topology for IP conflicts. Restart the HMI panel if the connection is not automatically restored.
Event ID: 20000: Tag read error. The HMI panel is unable to read a configured process tag from the PLC.
Verify the tag address in the TIA Portal project matches the actual PLC data block or memory address. Check that the PLC program contains the referenced variable and that access permissions are correctly configured.
Event ID: 20001: Tag write error. A write operation to a PLC tag has failed.
Check that the target PLC tag is not write-protected. Verify the data type of the HMI tag matches the PLC variable. Confirm the PLC is in RUN mode and the connection is active.
Event ID: 40000: Project download error. Transfer of the HMI project from the engineering PC to the panel has failed or been interrupted.
Ensure the panel is in Transfer mode. Verify the IP address of the panel in TIA Portal matches the physical panel settings. Check firewall settings on the engineering PC and confirm the Ethernet cable is properly connected.
Event ID: 50000: Internal device error or system fault detected on the HMI panel.
Perform a panel restart. If the error persists, reset the panel to factory defaults via the Start Center menu. Re-download the project. If the fault continues, the panel may require hardware service or replacement.
Event ID: 30000: Recipe data error. A recipe transfer or read/write operation has encountered an inconsistency or data mismatch.
Check recipe configuration in TIA Portal for correct tag assignments and data types. Verify available memory on the panel. Re-download the project and retry the recipe operation.

Frequently Asked Questions

Which communication interface does the KTP400 Basic 6AV6646-1BA24-0NA1 support?

The KTP400 Basic supports one PROFINET interface via an RJ45 Ethernet connector. It does not have a built-in PROFIBUS or serial interface.

Which Siemens PLCs is this panel compatible with?

The KTP400 Basic is primarily designed for use with Siemens S7-1200 and S7-1500 PLCs via PROFINET. It can also communicate with S7-300 and S7-400 controllers via Ethernet using the appropriate driver configuration in TIA Portal.

What software is required to configure the KTP400 Basic?

The panel must be configured using Siemens TIA Portal with the WinCC Basic engineering package, version V13 or higher. WinCC Comfort or Advanced is not required for Basic panels.

What is the operating voltage of the 6AV6646-1BA24-0NA1?

The panel operates on 24 V DC. The supply voltage tolerance is typically 20.4 V DC to 28.8 V DC.

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

Yes, the KTP400 Basic can communicate with third-party controllers that support Modbus TCP or other Ethernet-based protocols, provided the appropriate communication driver is available and configured in TIA Portal WinCC Basic.

Troubleshooting

Display remains blank after power is applied

Check the 24 V DC supply voltage at the panel's power connector. Measure voltage between terminals L+ and M to confirm it is within the 20.4–28.8 V DC range. Inspect the connector for loose or reversed wiring.

Correct the supply voltage or rewire the power connector. If the voltage is correct and the display remains blank, attempt a panel restart by briefly removing power. If the issue persists, the internal power supply or display backlight may be faulty and the unit should be sent for repair.

HMI panel cannot establish connection to the PLC at runtime

Verify the IP address configured on the panel via the Start Center matches the address set in the TIA Portal project. Use a PC to ping the panel and PLC IP addresses to confirm network reachability. Check the PROFINET cable and RJ45 connector for damage.

Correct any IP address mismatches in TIA Portal and re-download the project. Replace the Ethernet cable if physical damage is found. Ensure no IP address conflicts exist on the network segment.

Touchscreen does not respond to input or responds inaccurately

Check for physical damage or contamination on the touch surface. In the Start Center, navigate to the touch calibration utility to assess calibration accuracy. Determine if the issue is present across the entire screen or only in specific areas.

Clean the touch surface with a soft, dry cloth. Run the touch screen calibration routine from the Start Center. If calibration does not resolve the issue, the resistive touch panel may be damaged and the unit requires hardware repair or replacement.

Project download from TIA Portal fails or times out

Confirm the panel is set to Transfer mode via the Start Center. Verify the IP address entered in TIA Portal matches the panel's configured IP address. Check that the engineering PC and panel are on the same network subnet and that no firewall is blocking the connection.

Set the correct IP address in TIA Portal to match the panel. Disable any PC firewall temporarily to test connectivity. Ensure the Ethernet cable is directly connected or through a managed switch. Retry the download after confirming network settings.

Panel repeatedly restarts or shows a continuous boot loop

A corrupted project or failed firmware update can cause continuous restarts. Attempt to access the Start Center by powering on the panel and pressing the touch screen during startup. Check if the Start Center loads successfully without the project running.

From the Start Center, delete the existing project and re-download a known-good project from TIA Portal. If the panel cannot reach the Start Center, perform a factory reset using the reset procedure described in the operating instructions. If the boot loop continues after a factory reset, the panel requires hardware service.

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