
Siemens 6AV6647-0AC11-3AX1 KTP400 Basic
€ 455,00
The Siemens 6AV6647-0AC11-3AX1 is a KTP400 Basic panel belonging to the SIMATIC HMI Basic Panel series. It is a compact 4-inch key and touch operator panel designed for simple machine-level visualization and operator control tasks. This unit is part of Siemens' entry-level HMI portfolio, offering a cost-effective solution for straightforward human-machine interface requirements.
The KTP400 Basic features a 4-inch TFT widescreen display with a resolution of 480 x 272 pixels and 64K color depth, combined with a resistive touch screen and 4 configurable function keys for flexible operator input. It communicates via a single 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. It operates on a 24 V DC supply and is rated IP65 on the front face for protection against dust and water ingress.
The KTP400 Basic is widely used in manufacturing, packaging, and material handling machinery where compact, cost-efficient operator panels are required. Its small form factor makes it suitable for integration into control cabinet doors or machine enclosures with limited panel space. The PROFINET connectivity ensures straightforward communication with SIMATIC S7-1200 and S7-1500 PLCs, making it a common choice for modernization projects and new machine builds across discrete manufacturing industries.
Technical Specifications
| Display Size | 4 inch |
|---|---|
| Display Resolution | 480 x 272 pixels |
| Display Colors | 64K (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 |
| 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 |
| Panel Cutout | 119 x 90 mm |
| Certifications | CE, UL, cULus |
| Engineering Software | WinCC Basic (TIA Portal) |
| Mounting | Panel mounting |
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 controller.
Inspect the PROFINET network for cable faults or switch failures. Confirm PLC is powered and running. Restart the HMI panel and re-establish the connection. - Event ID: 20000
- Tag read error. The HMI is unable to read the value of a configured tag from the PLC.
Verify the tag address in the WinCC project matches the actual PLC data block or memory address. Check that the PLC program has not been modified without updating the HMI project. - Event ID: 20001
- Tag write error. The HMI is unable to write a value to the configured PLC tag.
Confirm the PLC tag is not write-protected. Check the data type consistency between the HMI tag and the PLC variable. Re-download the HMI project if the issue persists. - Event ID: 40000
- Project download error. A fault occurred during the transfer of the HMI project from the engineering PC to the panel.
Ensure the correct IP address is set on the panel and engineering PC. Check that TIA Portal WinCC Basic version is compatible with the panel firmware. Retry the download after restarting both devices. - Event ID: 50000
- System memory low. The available runtime memory on the HMI panel is insufficient to run the current project.
Reduce the number of active screens, images, or logged data in the WinCC project. Optimize the project by removing unused tags or graphics and re-download the project. - Event ID: 60000
- Firmware update error. The panel firmware update process failed or was interrupted.
Restart the panel and reattempt the firmware update using ProSave or TIA Portal. Ensure the correct firmware version for the KTP400 Basic (6AV6647-0AC11-3AX1) is used and that the power supply is stable during the update.
Frequently Asked Questions
Which PLCs are compatible with the KTP400 Basic (6AV6647-0AC11-3AX1)?
The KTP400 Basic communicates via PROFINET and is primarily designed for use with Siemens SIMATIC S7-1200 and S7-1500 PLCs. It can also communicate with S7-300 and S7-400 controllers that have PROFINET interfaces.
What software is required to configure this HMI panel?
The KTP400 Basic must be configured using Siemens TIA Portal with the WinCC Basic engineering package. Older STEP 7 or WinCC flexible software is not compatible with this panel.
What is the display resolution and size of the 6AV6647-0AC11-3AX1?
The panel features a 4-inch TFT widescreen display with a resolution of 480 x 272 pixels and 64K color support.
What is the front panel protection rating of the KTP400 Basic?
The front face of the KTP400 Basic is rated IP65, providing full protection against dust and protection against low-pressure water jets, making it suitable for industrial environments.
Can the KTP400 Basic be used with third-party PLCs?
The KTP400 Basic supports PROFINET communication, which in principle allows connection to third-party PROFINET-capable controllers, but Siemens officially supports and tests it with SIMATIC controllers. Compatibility with non-Siemens PLCs should be verified on a case-by-case basis.
Troubleshooting
Display remains blank after power on
Measure the 24 V DC supply voltage at the panel power connector. Check that the supply is within the specified range and that the connector is fully seated.
Restore the 24 V DC supply to the correct voltage level. If the supply is correct but the display remains blank, the internal power supply or backlight may be faulty and the panel should be sent for repair or replacement.
HMI panel shows 'Connecting…' and cannot establish communication with the PLC
Verify the PROFINET cable is connected to the correct RJ45 port on the panel. Check the IP address settings on the panel via the Start Center and compare them with the configured address in the TIA Portal project.
Correct any IP address mismatch between the panel and the TIA Portal project settings. Replace the PROFINET cable if damaged. Ensure the PLC is powered on and in RUN mode, then restart the HMI panel.
Touch screen is unresponsive or registers incorrect touch positions
Check the display surface for contamination, scratches, or physical damage. Attempt to recalibrate the resistive touch screen through the panel's Start Center settings menu.
Clean the display surface with a soft, dry cloth. Perform a touch screen calibration via the Start Center. If calibration does not resolve the issue, the touch screen overlay may need to be replaced.
HMI project cannot be downloaded from TIA Portal to the panel
Confirm the engineering PC and the panel are on the same network subnet. Verify the panel IP address in the Start Center matches the target address configured in TIA Portal. Check for firewall software on the PC that may be blocking the connection.
Set matching IP addresses and subnet masks on both devices. Disable any PC firewall temporarily during download. Ensure the TIA Portal WinCC Basic version is compatible with the installed panel firmware version, and update the firmware if necessary.
Function keys do not respond when pressed
Check the WinCC project to confirm that the function keys have been assigned events or actions in the screen configuration. Verify the project has been successfully downloaded to the panel.
Assign the appropriate events to the function keys in the TIA Portal WinCC project and re-download the project to the panel. If keys remain unresponsive after correct configuration, the keypad membrane may be mechanically damaged and require hardware repair.
| Condition | Repair, Used, Refurbished, New in box (sealed) |
|---|
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