Siemens 6AV6647-0AH11-3AX0 KTP400 Basic

Name: Siemens 6AV6647-0AH11-3AX0 KTP400 Basic
Brand: Siemens
SKU: 6AV6647-0AH11-3AX0
Availability: InStock

Price range: € 125,00 through € 218,00

Condition

Clear

SKU: 6AV6647-0AH11-3AX0 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens KTP400 Basic (part number 6AV6647-0AH11-3AX0) is a compact key and touch panel belonging to the SIMATIC HMI Basic Panel 2nd Generation family. It features a 4-inch widescreen display and is designed for straightforward machine-level visualization tasks. This panel is engineered for integration with Siemens SIMATIC S7-1200 and S7-1500 PLCs via PROFINET, making it a cost-effective solution for entry-level HMI applications.

The KTP400 Basic offers a TFT color display with a resolution of 480 x 272 pixels and supports 64,000 colors for clear process visualization. It combines resistive touch operation with 4 configurable function keys, providing flexible operator input options. The panel is configured exclusively using Siemens TIA Portal (WinCC Basic), supports PROFINET/Ethernet communication, and includes 10 MB of user memory. It operates on a 24 V DC supply and carries an IP65 protection rating on the front face, suitable for panel-mount installation.

The KTP400 Basic is widely deployed in small to medium-sized machinery across manufacturing, packaging, food and beverage, and building automation industries. Its compact 4-inch form factor makes it ideal for space-constrained control cabinet doors and machine panels where basic process monitoring and operator control are required. The panel's native compatibility with the TIA Portal engineering environment simplifies commissioning and reduces integration time in Siemens-based automation architectures.

Technical Specifications

Display Size	4 inch (widescreen)
Display Resolution	480 x 272 pixels
Display Colors	64,000 colors
Display Type	TFT
Touch Technology	Resistive touch
Function Keys	4 configurable function keys
Input/Operating Voltage	24 V DC
Power Consumption	4.5 W (typical)
Communication Interface	PROFINET / Ethernet (RJ45)
User Memory	10 MB
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
Panel Cutout	122 x 93 mm
Dimensions (W x H x D)	147 x 117 x 33 mm
Certifications	CE, UL, cULus
Configuration Software	TIA Portal WinCC Basic

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 RJ45 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 operational.
Event ID: 10001: Connection to PLC interrupted during runtime. The HMI lost communication with the configured SIMATIC controller.
Check physical Ethernet connection. Verify PLC is powered and in RUN mode. Review IP settings and subnet mask on both devices. Restart the HMI panel if the connection does not recover automatically.
Event ID: 20000: Project download failed or project data on the panel is corrupt or incompatible with the current firmware version.
Re-download the project from TIA Portal ensuring the WinCC Basic version matches the panel firmware. Update panel firmware if necessary using Siemens ProSave or TIA Portal.
Event ID: 40000: System memory low. Available runtime memory on the HMI panel is insufficient to continue normal operation.
Reduce the number of active screens, alarms, or data logs in the project. Optimize the project in TIA Portal and re-download to the panel.
Event ID: 50000: Firmware update error. An error occurred during a firmware update procedure on the panel.
Retry the firmware update using Siemens ProSave tool via Ethernet. Ensure stable power supply during the update process and do not interrupt the connection.
Event ID: 60000: Tag read/write error. The HMI was unable to read from or write to a configured PLC tag.
Verify the tag address in TIA Portal matches the actual PLC data block or memory area. Check that the PLC program has not been modified in a way that removes or relocates the referenced tags.
Event ID: 70000: Screen object configuration error. A configured screen object references an invalid or missing tag or resource.
Open the project in TIA Portal, identify and correct invalid tag references or missing graphic resources, then re-download the project to the panel.

Frequently Asked Questions

Which PLCs are compatible with the KTP400 Basic 6AV6647-0AH11-3AX0?

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 over Ethernet using the appropriate driver configuration in TIA Portal.

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

The KTP400 Basic must be configured using Siemens TIA Portal with the WinCC Basic engineering package. It is not compatible with WinCC Flexible or older STEP 7 Classic software.

What is the supply voltage for the 6AV6647-0AH11-3AX0?

The panel requires a 24 V DC power supply. The permissible voltage range is typically 19.2 V DC to 28.8 V DC.

Does the KTP400 Basic support USB connectivity?

Yes, the KTP400 Basic includes a USB Type-A port that can be used for project transfer, firmware updates, and connecting USB storage devices for data logging or recipe management.

What is the front panel protection rating of this HMI?

The front face of the KTP400 Basic carries an IP65 protection rating, making it resistant to dust ingress and low-pressure water jets, suitable for typical industrial panel-mount environments.

Troubleshooting

Display remains blank after power on

Measure the 24 V DC supply voltage at the panel power connector. Check that the voltage is within the 19.2 V to 28.8 V DC range. Inspect the power supply unit and wiring for faults.

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

HMI displays 'Connecting…' and cannot establish communication with PLC

Verify the PROFINET cable is securely connected to both the HMI and PLC. Check the IP address, subnet mask, and device name configured in TIA Portal match the actual panel settings. Use a network scanner to confirm the panel is visible on the network.

Correct any IP address or device name mismatches in TIA Portal and re-download the project. Replace the Ethernet cable if a physical fault is suspected. Ensure the PLC is powered on and in RUN mode.

Touchscreen does not respond or responds inaccurately to touch input

Check whether the function keys still respond, which would indicate the display is operational but the touch layer is faulty. Inspect the screen surface for damage, contamination, or excessive moisture.

Clean the screen surface with a soft, dry cloth. If inaccurate touch response persists, perform a touchscreen recalibration via the panel's Start Center settings menu. If the touch layer is physically damaged, the panel requires hardware repair.

Panel repeatedly restarts or enters a boot loop after project download

The downloaded project may be incompatible with the installed firmware version, or the project file may be corrupt. Check the firmware version on the panel via the Start Center and compare it with the TIA Portal WinCC Basic version used to create the project.

Update the panel firmware to the version compatible with the TIA Portal project using Siemens ProSave or TIA Portal's firmware update function. Re-download the project after confirming firmware compatibility.

Alarm messages are not displayed on the HMI at runtime

Check the alarm configuration in TIA Portal to verify that alarm tags are correctly linked to PLC addresses. Confirm the PLC tags are being updated and that the HMI-PLC communication is active.

Correct any invalid tag references in the alarm configuration within TIA Portal and re-download the project. Verify that the PLC program is correctly setting the alarm trigger bits and that the communication connection is stable.

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