Siemens 6AV6646-8AC10-0AA0 SIMATIC KTP400 Basic

Name: Siemens 6AV6646-8AC10-0AA0 SIMATIC KTP400 Basic
Brand: Siemens
SKU: 6AV6646-8AC10-0AA0
Price: 1003.00 EUR
Availability: InStock

€ 1.003,00

Condition

Clear

SKU: 6AV6646-8AC10-0AA0 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6646-8AC10-0AA0 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 tasks. This unit provides an entry-level human-machine interface solution with a resistive touch screen and dedicated function keys for operator interaction.

The KTP400 Basic features a 4-inch widescreen TFT display with a resolution of 480 x 272 pixels and 64,000 color depth, providing clear and readable process visualization. It communicates via a PROFINET interface, enabling seamless integration into modern Ethernet-based automation networks. The panel is configured using Siemens WinCC Basic (TIA Portal) engineering software and supports a project memory of 10 MB. Operating voltage is 24 V DC, and the unit is rated IP65 on the front face for protection against dust and water ingress.

The SIMATIC KTP400 Basic is widely used in small to medium-sized machine building applications across industries such as packaging, food and beverage, material handling, and general manufacturing. Its compact form factor and PROFINET connectivity make it suitable for integration with Siemens S7-1200 and S7-1500 PLCs in cost-sensitive automation projects. The panel is particularly suited for applications requiring a simple operator interface with limited screen real estate but reliable industrial-grade performance.

Technical Specifications

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

Common Error Codes & 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 on both the panel and PLC. Ensure the PLC is in RUN mode and the network switch or router is functioning correctly.
Event ID: 10001: Connection to PLC interrupted during runtime. The HMI lost its active communication link with the controller.
Inspect network cabling and connectors. Check PLC status and program execution. Restart the HMI panel and PLC if the connection does not recover automatically.
Event ID: 20000: Tag read error. The HMI panel is unable to read the value of a configured process tag from the PLC.
Verify the tag address in the WinCC Basic project matches the actual PLC data block or memory address. Check PLC program for address changes and reload the HMI project if necessary.
Event ID: 20001: Tag write error. The HMI panel is unable to write a value to the configured PLC tag.
Check that the target PLC address is not write-protected or out of range. Verify the data type consistency between the HMI tag and the PLC variable. Correct the project configuration and reload.
Event ID: 40000: Project download error. A project transfer to the panel was interrupted or failed to complete.
Check the USB or PROFINET transfer connection. Ensure the panel is in transfer mode and that the WinCC Basic project has no compilation errors before retransferring.
Event ID: 50000: System memory low. The panel's available runtime memory is insufficient for the current project.
Reduce the number of active screens, images, or logged data in the project. Optimize the project size in WinCC Basic and reload the updated project to the panel.
Event ID: 60000: Panel operating system error or firmware fault detected during startup or runtime.
Perform a panel reset using the reset button or via the Start Center. If the fault persists, update the panel firmware using ProSave or TIA Portal and restore the project.

Frequently Asked Questions

Which PLC families are compatible with the SIMATIC KTP400 Basic?

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 using Ethernet connections configured in WinCC Basic.

What software is required to configure the KTP400 Basic panel?

The panel is configured exclusively using Siemens WinCC Basic, which is included in the TIA Portal engineering framework. No standalone WinCC runtime license is required for the panel itself.

Does the KTP400 Basic support USB connectivity?

Yes, the panel includes a USB Type-A port for project transfer and data backup, as well as a USB Type-B (Mini-USB) port for PC connection during commissioning.

What is the front panel protection rating of the 6AV6646-8AC10-0AA0?

The front face of the KTP400 Basic is rated IP65, making it resistant to dust ingress and low-pressure water jets, suitable for industrial panel door mounting.

Can the KTP400 Basic display alarms and trend views?

Yes, the panel supports alarm logging, alarm views, and simple trend displays within the constraints of its 10 MB project memory and 4-inch screen size.

Troubleshooting

Display remains blank after power is applied

Measure the 24 V DC supply voltage at the panel's power connector. Check that polarity is correct and voltage is within the 20.4–28.8 V DC operating range.

Correct the supply voltage or wiring polarity. If voltage is correct and the display remains blank, perform a factory reset via the Start Center or replace the panel if the backlight or internal power supply has failed.

HMI panel shows 'Connecting…' and cannot establish communication with the PLC

Verify the PROFINET IP address settings on both the panel and the PLC. Use a network scanner or TIA Portal to confirm the PLC is reachable on the network. Check the RJ45 cable and port LEDs.

Correct IP address conflicts or subnet mismatches in the WinCC Basic project and PLC configuration. Replace the Ethernet cable if link LEDs are not illuminated. Ensure the PLC is in RUN mode.

Touch screen does not respond or responds inaccurately to touch input

Check for physical damage or contamination on the touch surface. Attempt to recalibrate the touch screen through the panel's Start Center settings menu.

Clean the touch surface with a soft, dry cloth. Perform a touch screen recalibration in the Start Center. If the issue persists, the resistive touch panel overlay may need replacement or the unit should be sent for repair.

Project transfer fails or times out during download from TIA Portal

Check the USB or PROFINET connection between the engineering PC and the panel. Confirm the panel is set to Transfer mode via the Start Center. Verify no firewall or antivirus software is blocking the TIA Portal transfer.

Switch the panel to Transfer mode manually before initiating the download. Disable firewall rules blocking TIA Portal communication ports. Try an alternative transfer method (USB instead of PROFINET) to isolate the issue.

Panel repeatedly restarts or displays a runtime error after project load

Check the project for unsupported functions or objects that exceed the panel's capabilities. Review the WinCC Basic diagnostic log for specific error event IDs.

Recompile the project in WinCC Basic and resolve any compiler warnings related to memory or unsupported features. Reduce project complexity if memory limits are exceeded, then retransfer the corrected project.

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