Siemens 6AV6646-1AB22-0AX0 SIMATIC KTP400 Basic

Name: Siemens 6AV6646-1AB22-0AX0 SIMATIC KTP400 Basic
Brand: Siemens
SKU: 6AV6646-1AB22-0AX0
Price: 785.00 EUR
Availability: InStock

€ 785,00

Condition

Clear

SKU: 6AV6646-1AB22-0AX0 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6646-1AB22-0AX0 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 visualization and operator control tasks. This unit is configured and operated using the Siemens TIA Portal engineering framework, specifically with WinCC Basic.

The KTP400 Basic features a 4-inch TFT display with a resolution of 480 x 272 pixels and 64,000 colors, providing clear visual feedback for operators. It combines a resistive touch screen with 4 configurable function keys, allowing flexible input options. The panel communicates via PROFINET (Ethernet) interface, enabling seamless integration into modern automation networks. It operates on a 24 V DC supply and offers 10 MB of user memory for project data storage.

The SIMATIC KTP400 Basic is widely used in small to medium-scale machine automation across industries such as packaging, food and beverage, material handling, and general manufacturing. Its compact form factor and straightforward engineering make it suitable for applications where a cost-effective, reliable HMI solution is required without the complexity of larger panel systems. The combination of touch and key operation makes it adaptable to environments where gloved operation or precise touch input is needed.

Technical Specifications

Display Size	4 inch
Display Resolution	480 x 272 pixels
Display Colors	64,000 colors
Display Type	TFT
Touch Technology	Resistive touch screen
Function Keys	4
Input/Operating Voltage	24 V DC
Power Consumption	4.5 W (typical)
Communication Interface	PROFINET (1x RJ45 Ethernet)
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	TIA Portal WinCC Basic V13 or higher

Common Error Codes & System Events

Event ID: 1000: System startup completed successfully. The HMI panel has booted and the runtime is active.
No action required. This is an informational event confirming normal startup.
Event ID: 10000: Connection to the PLC has been established successfully.
No action required. This confirms successful PROFINET communication with the configured controller.
Event ID: 10001: Connection to the PLC has been lost or cannot be established.
Check PROFINET cable and RJ45 connector integrity. Verify PLC IP address configuration matches the HMI project settings. Check PLC is powered and running.
Event ID: 10002: Communication error: tag read/write operation failed.
Verify the PLC program contains the correct data blocks and tags referenced in the HMI project. Check for address mismatches in TIA Portal configuration.
Event ID: 20000: Project download initiated or completed.
No action required during normal commissioning. If unexpected, verify no unauthorized access to the panel.
Event ID: 40000: Operating system error or runtime fault detected.
Perform a panel restart. If the fault persists, reload the HMI project via TIA Portal. Consider a factory reset if software corruption is suspected.
Event ID: 50000: Internal device temperature exceeded permissible limit.
Check ambient temperature around the panel. Ensure adequate ventilation in the control cabinet. Verify the panel is not mounted near heat sources.

Frequently Asked Questions

What communication interface does the KTP400 Basic (6AV6646-1AB22-0AX0) support?

The KTP400 Basic supports PROFINET via a single RJ45 Ethernet interface. It does not natively support PROFIBUS or MPI without additional hardware.

Which engineering software is required to configure this panel?

The panel is configured using Siemens TIA Portal with WinCC Basic, version V13 or higher. The classic SIMATIC WinCC flexible software is not compatible with this panel.

Is the KTP400 Basic compatible with S7-1200 and S7-1500 PLCs?

Yes, the KTP400 Basic communicates natively with Siemens S7-1200 and S7-1500 PLCs via PROFINET. It can also connect to S7-300 and S7-400 PLCs that have an Ethernet interface.

What is the front panel protection rating of this HMI?

The front panel of the KTP400 Basic is rated IP65, making it suitable for environments where dust and water jets may be present. The rear of the unit is rated IP20.

Can the KTP400 Basic be operated with gloves?

Yes, the panel includes 4 physical function keys in addition to the resistive touch screen, allowing operation with gloves where touch sensitivity may be reduced.

Troubleshooting

Display remains blank after power on

Check the 24 V DC supply voltage at the panel power connector. Measure voltage to confirm it is within the 20.4–28.8 V DC acceptable range. Inspect the power connector for loose or reversed wiring.

Correct the supply voltage or wiring. If voltage is confirmed 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 shows 'No connection to PLC' or communication alarm on screen

Verify the Ethernet cable is properly seated at both the HMI RJ45 port and the PLC or switch port. Check the IP address configuration in TIA Portal matches the physical network settings. Use a network ping test to confirm reachability.

Replace the Ethernet cable if damaged. Correct IP address or subnet mask mismatches in the TIA Portal project and re-download to the panel. Ensure the PLC is in RUN mode and the PROFINET connection is configured correctly.

Touchscreen does not respond to input

Determine whether the function keys still operate correctly. If keys work but touch does not, the resistive touch layer may be damaged or miscalibrated. Check for physical damage or contamination on the screen surface.

Clean the screen surface with a soft, dry cloth. Perform a touch calibration if accessible via the panel's Start Center. If the touch layer is physically damaged, the panel requires hardware repair or replacement.

Project download fails from TIA Portal

Check the PC-to-panel Ethernet connection and confirm both devices are on the same network subnet. Verify the correct panel IP address is entered in TIA Portal. Ensure the panel is in transfer mode via the Start Center.

Set the panel to transfer mode by accessing the Start Center during boot (press and hold the touch area at startup). Confirm firewall settings on the engineering PC are not blocking TIA Portal communication. Retry the download.

Panel repeatedly restarts or crashes during runtime

Check for project configuration errors or incompatible software versions between the TIA Portal project and the panel firmware. Review the event log in the panel's Start Center for specific event IDs.

Update the panel firmware to match the TIA Portal version used for the project. Re-download the project after resolving any configuration errors. If hardware faults are indicated, the unit should be inspected for internal component failure.

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