Siemens 6AV6651-7DA01-3AA4 SIMATIC KTP400 Basic

Name: Siemens 6AV6651-7DA01-3AA4 SIMATIC KTP400 Basic
Brand: Siemens
SKU: 6AV6651-7DA01-3AA4
Price: 415.00 EUR
Availability: InStock

€ 415,00

Condition

Clear

SKU: 6AV6651-7DA01-3AA4 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6651-7DA01-3AA4 is a SIMATIC KTP400 Basic panel belonging to the 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 an entry-level HMI solution within the SIMATIC HMI portfolio, offering a balance of functionality and cost-effectiveness for simple automation applications.

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 4 configurable function keys for tactile operator input alongside the resistive touchscreen. It communicates via a PROFINET interface, enabling direct integration with SIMATIC S7-1200 and S7-1500 PLCs. The panel is configured using the WinCC Basic engineering software included within the TIA Portal framework, and supports a project memory of 512 KB. Operating voltage is 24 V DC, and the unit carries IP65 protection on the front face.

The KTP400 Basic is widely deployed in small to medium-scale machine building applications where a compact and cost-efficient HMI is required. Typical industries include packaging machinery, conveyor systems, pump stations, and general factory automation. Its PROFINET connectivity and TIA Portal integration make it particularly suitable for use alongside Siemens S7-1200 controllers in standalone machine applications.

Technical Specifications

Display Size	4 inch
Display Resolution	480 x 272 pixels
Display Colors	64,000 (16-bit)
Display Type	TFT widescreen
Touch Technology	Resistive touchscreen
Function Keys	4 configurable function keys
Input/Operating Voltage	24 V DC
Power Consumption	Max. 4.5 W
Communication Interface	PROFINET (RJ45)
Project Memory	512 KB
IP Rating (Front)	IP65
IP 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

Common Error Codes & System Events

Event ID: 10000: Communication error between the HMI panel and the connected PLC. The connection to the controller has been lost or cannot be established.
Check the PROFINET cable and RJ45 connector integrity. Verify the IP address configuration of both the panel and the PLC. Ensure the PLC is in RUN mode and the project configuration matches the hardware setup.
Event ID: 10001: Connection to the PLC was interrupted during runtime operation.
Inspect the PROFINET network for cable faults or switch failures. Check PLC status and restart the connection from the HMI if necessary. Verify network settings in TIA Portal.
Event ID: 20000: Tag read error. The HMI panel is unable to read a configured tag from the PLC.
Verify that the tag address in the HMI project matches the actual PLC data block or memory address. Ensure the PLC program has not been modified without updating the HMI project accordingly.
Event ID: 20001: Tag write error. A write operation to a PLC tag has failed.
Check that the target PLC address is not write-protected. Confirm the data type of the tag in the HMI project matches the PLC definition. Re-download the HMI project after correcting any mismatches.
Event ID: 40000: System memory low. The available runtime memory on the HMI panel is insufficient.
Reduce the number of active screens, images, or logged data. Optimize the HMI project in TIA Portal by removing unused tags, screens, or alarm entries, then re-download the project.
Event ID: 50000: Internal device error or hardware fault detected on the panel.
Perform a power cycle on the panel. If the error persists, perform a factory reset via the Start Center. If the fault continues after reset, the panel may require repair or replacement.
Event ID: 70000: Project download error. Transfer of the HMI project from the engineering station to the panel has failed.
Ensure the panel is in Transfer mode via the Start Center. Verify the network connection between the engineering PC and the panel. Check that the TIA Portal project is compiled without errors before initiating the transfer.

Frequently Asked Questions

Which PLCs are compatible with the KTP400 Basic 6AV6651-7DA01-3AA4?

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

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

The panel is configured using Siemens TIA Portal with the WinCC Basic engineering software package. WinCC Basic is included in TIA Portal and supports the full feature set of the Basic Panel series.

What is the communication interface available on this panel?

The 6AV6651-7DA01-3AA4 is equipped with a single PROFINET interface via an RJ45 connector. It does not include a PROFIBUS or serial interface.

What is the front panel protection rating of the KTP400 Basic?

The front face of the panel carries an IP65 protection rating, making it suitable for installation in control cabinet doors where it may be exposed to dust and water jets. The rear of the unit is rated IP20.

Can the function keys on the KTP400 Basic be assigned custom functions?

Yes, the 4 function keys can be freely configured within TIA Portal WinCC Basic to trigger specific HMI functions, navigate screens, or set PLC tags, depending on the application requirements.

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 specified range of 19.2 V to 28.8 V DC.

Correct any wiring errors or supply voltage issues. If the supply is confirmed good and the display remains blank, the panel's internal power supply or backlight may be faulty and the unit should be sent for repair.

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

Verify the PROFINET IP address assigned to the panel in TIA Portal matches the address configured in the Start Center on the panel itself. Check the physical RJ45 cable and any intermediate network switches.

Correct IP address mismatches in TIA Portal and re-download the project. Replace the PROFINET cable if damaged. Ensure the PLC is powered and in RUN mode before attempting connection.

Touchscreen does not respond or responds inaccurately to touch input

Check whether the touchscreen responds at all or only in certain areas. A resistive touchscreen may lose calibration over time or be damaged by excessive force or sharp objects.

Recalibrate the touchscreen via the Start Center on the panel. If calibration does not resolve the issue, inspect the screen surface for physical damage. A damaged touchscreen assembly will require hardware replacement.

HMI project cannot be transferred to the panel

Confirm the panel is set to Transfer mode in the Start Center. Verify the IP address of the panel is reachable from the engineering PC by pinging it. Check that no firewall on the PC is blocking the TIA Portal transfer port.

Set the panel to Transfer mode, correct any IP address or network configuration issues, and disable any firewall rules blocking TIA Portal. Recompile the project in TIA Portal and retry the download.

Alarms or tags display incorrect or stale values at runtime

Check the tag update cycle configured in TIA Portal for the affected tags. Verify the PLC connection is active and the tag addresses have not changed in the PLC program since the last HMI project download.

Update the HMI project in TIA Portal to reflect any PLC program changes, recompile, and re-download to the panel. Adjust tag acquisition cycles if values are updating too slowly for the application.

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