Siemens 6AV6646-1BD22-1NA0 SIMATIC KTP400 Basic

Name: Siemens 6AV6646-1BD22-1NA0 SIMATIC KTP400 Basic
Brand: Siemens
SKU: 6AV6646-1BD22-1NA0
Price: 1093.00 EUR
Availability: InStock

€ 1.093,00

Condition

Clear

SKU: 6AV6646-1BD22-1NA0 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6646-1BD22-1NA0 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 belongs to the entry-level HMI segment within the SIMATIC HMI portfolio, offering a cost-effective solution for simple panel integration.

The KTP400 Basic features a 4-inch TFT display with a resolution of 480 x 272 pixels and 64,000 color support, combined with a resistive touch screen and 4 configurable function keys. It communicates via a PROFINET interface, enabling direct integration into standard Ethernet-based automation networks. The panel is configured using Siemens WinCC Basic (TIA Portal) software and supports a user memory of 10 MB for project data. Operating voltage is 24 V DC, and the unit carries CE and UL certifications.

The SIMATIC KTP400 Basic is widely deployed in machine building, packaging machinery, conveyor systems, and small-scale process automation where a compact and reliable operator interface is required. Its PROFINET connectivity makes it directly compatible with SIMATIC S7-1200 and S7-1500 PLCs, as well as other PROFINET-capable controllers. The panel's compact form factor and low power consumption make it suitable for space-constrained control cabinet installations.

Technical Specifications

Display Size	4 inch
Display Resolution	480 x 272 pixels
Display Colors	64,000 colors
Display Type	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)
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
Mounting	Panel mounting
Certifications	CE, UL, cULus
Configuration Software	WinCC Basic (TIA Portal)

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 PLC IP address and project communication settings in TIA Portal. Ensure PLC is in RUN mode.
Event ID: 10001: Connection to PLC interrupted during runtime. The HMI lost communication with the configured controller.
Check network switch and cabling. Verify PLC is powered and running. Restart HMI panel and re-establish connection.
Event ID: 20000: Project download error. The project could not be transferred to the HMI panel successfully.
Verify USB or PROFINET download connection. Ensure TIA Portal project is compiled without errors. Check available user memory on the panel.
Event ID: 40000: Tag read/write error. A configured tag could not be read from or written to the PLC.
Verify the tag address exists in the PLC program. Check data type consistency between HMI tag and PLC variable. Confirm PLC is in RUN mode.
Event ID: 50000: System event: HMI panel startup completed. Panel has finished booting and loaded the runtime project.
No action required. This is an informational event confirming successful panel startup.
Event ID: 60000: Illegal user operation. An operator attempted an action that is not permitted under the current user authorization level.
Review user authorization settings in the TIA Portal project. Assign appropriate user groups and permissions for the required operations.
Event ID: 70010: Backup/restore error. A project backup or restore operation failed on the panel.
Check available storage space. Ensure the backup medium (USB) is properly connected and formatted. Retry the backup or restore operation.

Frequently Asked Questions

Which PLCs are compatible with the SIMATIC KTP400 Basic (6AV6646-1BD22-1NA0)?

The KTP400 Basic communicates via PROFINET and is directly compatible with Siemens SIMATIC S7-1200 and S7-1500 PLCs. It can also connect to other PROFINET-capable controllers supported by WinCC Basic in TIA Portal.

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

The KTP400 Basic is configured exclusively using Siemens WinCC Basic, which is included with the TIA Portal engineering software package. Older SIMATIC WinCC flexible software is not compatible with this panel.

What is the operating voltage of the 6AV6646-1BD22-1NA0?

The panel operates on 24 V DC. A stable, regulated 24 V DC power supply must be connected to the panel's power terminals.

Does the KTP400 Basic support USB connectivity?

Yes, the KTP400 Basic includes a USB Type A interface that can be used for project download, backup and restore operations, and connecting USB storage devices.

What is the front panel protection rating of this HMI?

The front face of the KTP400 Basic is rated IP65, making it resistant to dust ingress and low-pressure water jets, suitable for typical industrial panel-mounting environments.

Troubleshooting

Display remains blank after power is applied

Measure 24 V DC at the panel power supply terminals. Check the supply polarity and ensure the connector is fully seated. Verify the power supply can deliver sufficient current.

Correct any wiring errors and ensure a stable 24 V DC supply is present. If the supply is confirmed correct and the display remains blank, the internal power supply board or backlight may be faulty and the unit should be sent for repair.

HMI panel shows 'No connection to PLC' or communication alarm at runtime

Check the PROFINET cable between the HMI and the network switch or PLC. Verify the IP address configured in the TIA Portal project matches the actual PLC IP address. Ping the PLC from a PC on the same network to confirm network reachability.

Replace or reseat the PROFINET cable. Correct the IP address settings in the TIA Portal project and re-download to the panel. Ensure the PLC is powered on and in RUN mode.

Touch screen does not respond or responds inaccurately to touch input

Check for physical damage or contamination on the touch screen surface. Attempt to recalibrate the touch screen through the panel's Start Center menu. Verify that the resistive touch surface is not being pressed by a panel gasket or enclosure edge.

Clean the touch screen surface with a soft, dry cloth. Perform a touch screen calibration via the Start Center. If calibration fails or the issue persists, the touch screen overlay may require replacement.

Project download to the panel fails or times out

Verify the download connection type (PROFINET or USB). Check that the PC running TIA Portal and the HMI panel are on the same network subnet. Confirm the panel is in transfer mode (accessible via Start Center > Transfer).

Set the panel to transfer mode manually via the Start Center. Ensure firewall settings on the PC do not block TIA Portal communication. Re-compile the project in TIA Portal and retry the download.

Function keys do not trigger the configured actions

Check the function key assignments in the TIA Portal project configuration. Verify that the correct screen or global function key settings are active. Confirm the project has been successfully downloaded to the panel.

Review and correct function key assignments in WinCC Basic. Re-download the updated project to the panel. If keys are physically damaged or unresponsive, the front membrane keypad may require replacement.

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