
Siemens 6AV6648-0AC11-3AX0 SIMATIC KTP400 Basic
€ 560,00
The Siemens 6AV6648-0AC11-3AX0 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 and operator control tasks. This unit provides a cost-effective entry-level HMI solution within the SIMATIC HMI portfolio.
The KTP400 Basic features a 4-inch TFT 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 touch interface. It communicates via a PROFINET interface, enabling seamless integration with Siemens S7-1200 and S7-1500 PLCs as well as other PROFINET-compatible controllers. The panel is configured using the WinCC Basic engineering software included with TIA Portal, and supports a user memory of 10 MB for project data.
The KTP400 Basic is widely deployed in small to medium-scale machine automation applications across industries such as packaging, food and beverage, material handling, and general manufacturing. Its compact form factor and PROFINET connectivity make it particularly suitable for decentralized machine panels and standalone machine control cabinets where space is limited but clear process visualization is required.
Technical Specifications
| Display Size | 4 inch |
|---|---|
| Display Resolution | 480 x 272 pixels |
| Display Colors | 64,000 (16-bit) |
| Display Type | TFT |
| Touch Technology | Resistive |
| Function Keys | 4 |
| Input/Operating Voltage | 24 V DC |
| Power Consumption | 4.5 W (typical) |
| Communication Interface | PROFINET (RJ45) |
| 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 |
| Dimensions (W x H x D) | 155 x 130 x 39 mm |
| Panel Cutout | 138 x 113 mm |
| Certifications | CE, UL, cULus |
| Engineering Software | WinCC Basic (TIA Portal) |
Common Error Codes and System Events
- Event ID: 10000
- Communication error between the HMI panel and the connected PLC. The configured connection cannot be established or has been interrupted.
Check PROFINET cable and connector integrity. Verify the PLC IP address and device name configured in TIA Portal match the actual PLC settings. Ensure the PLC is in RUN mode. - Event ID: 10001
- Connection to the PLC was interrupted during runtime operation.
Check network cabling and switch/router status. Verify PLC is powered and running. Restart the HMI panel if the connection is not automatically re-established. - Event ID: 20000
- Project download error. The project could not be transferred to the HMI panel successfully.
Verify the Ethernet connection between the engineering PC and the HMI panel. Ensure TIA Portal project is compiled without errors before downloading. Check that the panel is in transfer mode. - Event ID: 40000
- Internal device error or hardware fault detected on the HMI panel.
Perform a power cycle of the HMI panel. If the error persists, perform a factory reset via the Start Center menu. If unresolved, the unit may require repair or replacement. - Event ID: 50000
- Configuration error detected. The loaded project is incompatible with the panel type or firmware version.
Verify the HMI device type selected in TIA Portal matches the physical panel. Update panel firmware to the version required by the project and re-download the project. - Event ID: 70000
- Firmware update error. The firmware update process was interrupted or failed.
Retry the firmware update using ProSave or TIA Portal. Ensure stable power supply during the update process and that the correct firmware file for the KTP400 Basic is used. - Event ID: 3000
- Tag update cycle time exceeded. The HMI is unable to update process values within the configured cycle time.
Increase the tag update cycle time in the project configuration. Reduce the number of tags being polled simultaneously or optimize PLC communication load.
Frequently Asked Questions
Which PLCs are compatible with the KTP400 Basic panel?
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 PLCs using the PROFINET interface, provided the correct communication drivers are configured in TIA Portal.
What software is required to configure the KTP400 Basic?
The KTP400 Basic is configured using WinCC Basic, which is included with the TIA Portal engineering framework. A separate WinCC Advanced or Professional license is not required for this panel.
What is the supply voltage for the 6AV6648-0AC11-3AX0?
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 recipe management?
Yes, the KTP400 Basic supports basic recipe functionality, allowing operators to store and load parameter sets directly from the HMI panel during machine operation.
What is the front panel protection rating of the KTP400 Basic?
The front panel of the KTP400 Basic carries an IP65 protection rating, making it suitable for installation in environments where dust and water jets may be present.
Troubleshooting
Display remains blank after power is applied
Measure the 24 V DC supply voltage at the power connector on the rear of the panel. Verify polarity is correct. Check if the Start Center or backlight is active by touching the screen.
Ensure the 24 V DC supply is within the 19.2–28.8 V DC range. If the backlight has failed, the panel may require backlight or display replacement. Perform a power cycle and observe if the Start Center appears.
HMI panel cannot establish communication with the PLC
Check the PROFINET cable connection at both the panel and PLC. Verify the IP address and device name assigned to the HMI in TIA Portal match the panel's actual network settings visible in the Start Center.
Reconfigure the IP address on the panel via the Start Center network settings. Re-download the project from TIA Portal after confirming all network parameters are consistent. Replace the Ethernet cable if physical damage is suspected.
Touchscreen does not respond to input or responds inaccurately
Check for physical damage or contamination on the touch surface. Determine if the issue is limited to specific screen areas, which may indicate a damaged resistive touch layer.
Clean the touch surface with a soft, dry cloth. Recalibrate the touchscreen via the Start Center settings menu. If calibration does not resolve the issue, the touch panel assembly may need to be replaced.
Project download fails from TIA Portal
Verify the Ethernet connection between the PC and the HMI panel. Confirm the panel is in Transfer mode via the Start Center. Check that the TIA Portal project compiles without errors.
Switch the panel to Transfer mode manually through the Start Center. Ensure the PC and panel are on the same network subnet. Disable any firewall software on the engineering PC that may be blocking the TIA Portal communication.
Panel repeatedly restarts or enters a boot loop
This may indicate a corrupted project file on the panel or a firmware mismatch. Observe whether the Start Center is accessible before the restart occurs.
Access the Start Center during boot and perform a factory reset to clear the corrupted project. Re-download a freshly compiled project from TIA Portal. If the issue persists, update the panel firmware using ProSave.
| Condition | Repair, Used, Refurbished, New in box (sealed) |
|---|
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