Siemens 6AV6646-1BA22-1AA0 SIMATIC KTP400 Basic

Name: Siemens 6AV6646-1BA22-1AA0 SIMATIC KTP400 Basic
Brand: Siemens
SKU: 6AV6646-1BA22-1AA0
Price: 916.00 EUR
Availability: InStock

€ 916,00

Condition

Clear

SKU: 6AV6646-1BA22-1AA0 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6646-1BA22-1AA0 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 visualization and operator control tasks. The unit provides a cost-effective entry-level HMI solution within the SIMATIC HMI product family, suitable for integration into small to medium-scale automation systems.

The KTP400 Basic features a 4-inch widescreen TFT display with a resolution of 480 x 272 pixels and 64,000 color support, offering clear visual feedback for operators. It combines touch screen operation with 4 configurable function keys, providing flexible input options. The panel communicates via PROFINET (Ethernet) interface, enabling seamless integration with SIMATIC S7-1200 and S7-1500 PLCs. Configuration is performed using Siemens WinCC Basic (TIA Portal), and the unit operates on a 24 V DC supply voltage.

The SIMATIC KTP400 Basic is widely used in manufacturing automation, packaging machinery, conveyor systems, and building automation applications. Its compact form factor and PROFINET connectivity make it particularly well-suited for distributed machine-level HMI tasks where space is limited. The panel is a common choice for OEMs building compact control panels for small machines and process equipment.

Technical Specifications

Display Size	4 inch
Display Type	TFT widescreen
Display Resolution	480 x 272 pixels
Display Colors	64,000 colors
Touch Technology	Resistive touch screen
Function Keys	4 configurable function keys
Input Voltage	24 V DC
Power Consumption	2.5 W (typical)
Communication Interface	PROFINET (1x RJ45 Ethernet)
Configuration Software	WinCC Basic (TIA Portal V11 or higher)
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
Mounting	Panel mounting
Certifications	CE, UL, cULus
Series	SIMATIC Basic Panel

Common Error Codes and 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 panel lost communication with the configured controller.
Inspect network cabling for damage or loose connections. Verify PLC is powered and running. Check for IP address conflicts on the network and confirm firewall or switch settings are not blocking traffic.
Event ID: 20000: Tag read error. The HMI panel is unable to read a configured tag or variable from the PLC.
Verify the tag address in WinCC Basic matches the actual PLC data block or memory address. Check that the PLC program contains the expected variable and that access rights are correctly configured.
Event ID: 20001: Tag write error. The HMI panel is unable to write a value to a configured PLC tag.
Confirm the target PLC tag is not write-protected. Check the data type compatibility between the HMI tag and PLC variable. Verify communication is active and the PLC is in a state that permits write access.
Event ID: 40000: Project download error. A project transfer from the engineering PC to the HMI panel has failed.
Ensure the panel is in transfer mode. Verify the IP address of the panel is correctly set in TIA Portal. Check that the PC and panel are on the same network subnet and that no firewall is blocking the transfer port.
Event ID: 50000: Internal device error or system fault detected on the HMI panel.
Perform a power cycle of the panel. If the error persists, perform a factory reset via the panel's Start Center menu. Re-download the project from TIA Portal. If the fault continues, the panel may require hardware service or replacement.
Event ID: 60000: Insufficient memory for project or runtime data. The panel does not have enough free memory to load or run the configured project.
Reduce the project size by optimizing graphics, reducing the number of screens, or compressing images in WinCC Basic. Delete unused variables and scripts, then re-download the project to the panel.

Frequently Asked Questions

Which PLCs are compatible with the SIMATIC KTP400 Basic (6AV6646-1BA22-1AA0)?

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 Ethernet connections configured in TIA Portal.

What software is required to configure the KTP400 Basic?

The panel is configured using Siemens WinCC Basic, which is included with TIA Portal V11 or later. A separate WinCC license beyond the Basic version is not required for this panel.

What is the supply voltage for the 6AV6646-1BA22-1AA0?

The panel requires a 24 V DC supply voltage. Ensure the power supply can deliver sufficient current, typically at least 0.2 A under normal operating conditions.

Does the KTP400 Basic support PROFIBUS communication?

No, the KTP400 Basic (6AV6646-1BA22-1AA0) supports only PROFINET via its RJ45 Ethernet interface. It does not have a PROFIBUS DP port. For PROFIBUS connectivity, a different SIMATIC panel variant would be required.

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 control cabinet doors where it may be exposed to dust and water spray.

Troubleshooting

Display remains blank after power is applied

Measure the 24 V DC supply voltage at the panel's power connector. Check polarity and verify the supply voltage is within the acceptable range. Inspect the power connector for loose or corroded contacts.

Correct any wiring issues and ensure the power supply output is stable at 24 V DC. If voltage is confirmed correct and the display remains blank, the panel's internal power supply or backlight may be faulty and the unit should be sent for repair or replacement.

HMI panel cannot establish communication with the PLC

Verify the PROFINET cable is securely connected to both the panel and the PLC or network switch. Check the IP address settings on the panel via the Start Center and compare them with the project configuration in TIA Portal.

Assign a correct and unique IP address to the panel within the same subnet as the PLC. Replace the Ethernet cable if damaged. Confirm the PLC is powered, in RUN mode, and that the correct HMI connection is configured in the TIA Portal project.

Touchscreen does not respond or responds inaccurately to touch input

Check whether the function keys still respond, which would indicate the touch layer is faulty rather than the entire panel. Inspect the screen surface for damage, contamination, or excessive pressure points.

Clean the screen surface with a soft, dry cloth. Recalibrate the touch screen if the option is available in the Start Center. If the touch layer is physically damaged or unresponsive after recalibration, the panel requires hardware repair or replacement.

Project transfer from TIA Portal to the panel fails

Confirm the panel is set to transfer mode via the Start Center. Verify the IP address entered in TIA Portal matches the panel's actual IP address. Check that the engineering PC and panel are on the same network and that Windows Firewall is not blocking the connection.

Set the correct IP address in both TIA Portal and the panel. Temporarily disable the PC firewall to test connectivity. Use a direct Ethernet cable connection between the PC and panel to eliminate network switch issues. Re-initiate the download from TIA Portal.

Panel repeatedly reboots or freezes during operation

Check the 24 V DC supply for voltage dips or instability under load, which can cause unexpected resets. Review the project for memory overload or excessively complex scripts that may cause runtime errors.

Use a stable, dedicated 24 V DC power supply with adequate current capacity. Optimize the WinCC Basic project to reduce memory usage. Perform a firmware update if an updated version is available. If the issue persists, perform a factory reset and re-download the project.

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