Siemens 6AV6646-1AA22-0AX0 SIMATIC KTP400 Basic

Name: Siemens 6AV6646-1AA22-0AX0 SIMATIC KTP400 Basic
Brand: Siemens
SKU: 6AV6646-1AA22-0AX0
Price: 696.00 EUR
Availability: InStock

€ 696,00

Condition

Clear

SKU: 6AV6646-1AA22-0AX0 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6646-1AA22-0AX0 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 a cost-effective entry-level HMI solution within the Siemens SIMATIC portfolio, offering both touch and key-based operation 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, enabling clear visualization of process data and machine states. It is equipped with a PROFINET interface for seamless integration with Siemens S7-1200 and S7-1500 PLCs, as well as other PROFINET-compatible controllers. The panel includes 4 configurable function keys, 1 MB of user memory for project data, and is configured using Siemens TIA Portal (WinCC Basic or higher). The housing meets IP65 protection on the front face, making it suitable for panel-mounting in industrial environments.

The SIMATIC KTP400 Basic is widely used in manufacturing, packaging, material handling, and process automation applications where a compact, cost-efficient HMI is required at the machine level. Its PROFINET connectivity and TIA Portal integration make it particularly well-suited for use alongside Siemens S7-1200 PLCs in small to medium-scale automation systems. The panel is commonly found in conveyor systems, pumping stations, and standalone machine control cabinets.

Technical Specifications

Display Size	4 inch
Display Resolution	480 x 272 pixels
Display Colors	64,000 colors (TFT)
Touch Technology	Resistive touch + 4 function keys
Input/Operating Voltage	24 V DC
Power Consumption	Typical 2.3 W
Communication Interface	PROFINET (RJ45)
User Memory	1 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
Configuration Software	TIA Portal WinCC Basic V11 or higher
Series/Product Family	SIMATIC Basic Panel

Common Error Codes and System Events

Event ID: 10000: Configuration error detected on the HMI panel. The project loaded on the device contains configuration inconsistencies or is incompatible with the firmware version.
Reload the project from TIA Portal ensuring the WinCC version matches the panel firmware. Update firmware if necessary before transferring the project.
Event ID: 20000: Communication connection to the PLC has been lost or cannot be established. The HMI cannot reach the configured controller via PROFINET.
Check the PROFINET cable and RJ45 connector integrity. Verify the IP address configuration of both the HMI and PLC. Confirm the PLC is in RUN mode and the network switch is operational.
Event ID: 40000: Tag read/write error. The HMI attempted to access a PLC data address that does not exist or is out of range in the controller program.
Review the tag configuration in TIA Portal and verify that all HMI tags reference valid PLC memory addresses. Correct any mismatched data types or address offsets.
Event ID: 50000: 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. Ensure the project does not exceed the 1 MB user memory limit of the KTP400 Basic.
Event ID: 70000: Firmware update failed or firmware version mismatch detected between the panel and the project configuration.
Re-initiate the firmware update via TIA Portal or the Siemens Automation Tool. Ensure a stable 24 V DC power supply is maintained throughout the update process.
Event ID: 3000: Transfer mode active. The panel is waiting for a project transfer from the engineering PC and normal operation is suspended.
Initiate the project download from TIA Portal, or press Cancel on the panel to exit transfer mode and resume normal operation if no transfer is intended.

Frequently Asked Questions

Which PLCs are compatible with the SIMATIC KTP400 Basic 6AV6646-1AA22-0AX0?

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 that have PROFINET capability, as well as other PROFINET-compatible third-party controllers.

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

The KTP400 Basic must be configured using Siemens TIA Portal with WinCC Basic V11 or higher. Earlier STEP 7 or WinCC flexible software versions are not compatible with this panel.

What is the display resolution and color depth of the KTP400 Basic?

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

Does the KTP400 Basic support USB or SD card interfaces?

The 6AV6646-1AA22-0AX0 does not include USB host ports or SD card slots. Project transfer is 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, making it resistant to dust ingress and low-pressure water jets when correctly installed in a panel cutout with the supplied seal.

Troubleshooting

Display remains blank after power is applied

Measure the 24 V DC supply voltage at the panel's power connector. Check polarity and verify the supply is within the acceptable voltage range. Inspect for any visible damage to the connector or internal fuse.

Ensure a stable 24 V DC supply is connected with correct polarity. If the supply voltage is 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 cannot establish communication with the PLC

Check the PROFINET cable connection at both the HMI and PLC ends. Use a network scanner or TIA Portal device diagnostics to verify the HMI IP address is reachable. Confirm there are no IP address conflicts on the network.

Assign a unique IP address to the HMI via TIA Portal or the panel's Start Center network settings. Replace the Ethernet cable if damaged. Verify the PLC PROFINET interface is active and the controller is in RUN mode.

Touchscreen is unresponsive or registers incorrect touch positions

Clean the display surface and check for any physical damage or contamination on the resistive touch layer. Verify that the operator is not wearing thick gloves that may impede touch registration.

Perform a touchscreen calibration via the panel's Start Center settings menu. If calibration does not resolve the issue, the touch foil may be damaged and the panel should be repaired or replaced.

Project transfer from TIA Portal fails or times out

Verify the PC and HMI are on the same IP subnet. Check that the HMI is in Transfer mode (accessible via Start Center). Confirm that any firewall or antivirus software on the engineering PC is not blocking the TIA Portal transfer process.

Disable firewall exceptions for TIA Portal on the engineering PC. Set the HMI to Transfer mode manually via the Start Center before initiating the download. If transfer still fails, perform a factory reset on the panel and re-transfer the project.

Panel displays 'No project' or boots to Start Center after power cycle

This indicates that no valid project is stored in the panel memory, or the project was lost due to a failed transfer or memory corruption.

Re-transfer the project from TIA Portal to the panel. Ensure the power supply remains stable during the transfer process to prevent corruption. If the issue persists, update the panel firmware before re-loading the project.

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