Siemens 6AV6646-1BB22-1NA0 SIMATIC KTP400 Basic

Name: Siemens 6AV6646-1BB22-1NA0 SIMATIC KTP400 Basic
Brand: Siemens
SKU: 6AV6646-1BB22-1NA0
Price: 1051.00 EUR
Availability: InStock

€ 1.051,00

Condition

Clear

SKU: 6AV6646-1BB22-1NA0 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6646-1BB22-1NA0 is a SIMATIC KTP400 Basic panel, part of the Basic Panel 2nd Generation series from Siemens. It is a compact 4-inch key and touch-operated HMI panel designed for straightforward visualization and operator control tasks. This unit belongs to the SIMATIC HMI Basic Panel family, which is engineered for cost-effective machine-level HMI applications.

The KTP400 Basic features a 4.3-inch widescreen TFT display with a resolution of 480 x 272 pixels and 64,000 colors, providing clear and readable process visualization. It combines resistive touch operation with 4 configurable function keys for flexible operator input. The panel communicates via PROFINET (Ethernet) interface, enabling seamless integration into modern automation networks. It is configured using Siemens TIA Portal with WinCC Basic engineering software, and supports a project memory of 10 MB. The unit operates on a 24 V DC supply and carries CE and UL certifications.

The SIMATIC KTP400 Basic is widely used in machine building, packaging machinery, and small-scale process automation where a compact and cost-efficient HMI solution is required. Its PROFINET connectivity makes it suitable for integration with Siemens S7-1200 and S7-1500 PLC families. The panel is particularly common in applications where panel space is limited but reliable operator interaction and process monitoring are essential.

Technical Specifications

Display Size	4.3 inch
Display Resolution	480 x 272 pixels
Display Colors	64,000 colors
Display Type	TFT widescreen
Touch Technology	Resistive touch
Function Keys	4
Input/Operating Voltage	24 V DC
Power Consumption	4.5 W (typical)
Communication Interface	PROFINET (1x RJ45 Ethernet)
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/Protection Rating	IP65 (front), IP20 (rear)
Mounting	Panel mounting
Certifications	CE, UL, cULus
Series/Product Family	SIMATIC HMI Basic Panel 2nd Generation

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 is operational.
Event ID: 10001: Connection to PLC interrupted during runtime. The HMI 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 segment.
Event ID: 20000: Tag read error. The HMI panel is unable to read a configured process tag from the PLC.
Verify the tag address exists in the PLC program and has not been modified. Re-download the HMI project and confirm tag mapping in TIA Portal.
Event ID: 20001: Tag write error. A write operation to a PLC tag failed.
Check that the target PLC data block or memory area is not write-protected. Verify tag address configuration in the HMI project within TIA Portal.
Event ID: 40000: Project download error. Transfer of the HMI project to the panel was interrupted or failed.
Ensure the panel is in Transfer mode before initiating download. Check the Ethernet connection between the engineering PC and the panel. Retry the download from TIA Portal.
Event ID: 50000: Internal device error or system fault detected on the HMI panel.
Perform a panel restart by cycling the 24 V DC power supply. If the fault persists, perform a factory reset via the panel's Start Center menu and re-download the project.
Event ID: 60000: Insufficient memory for project. The HMI project exceeds the available panel memory.
Reduce the project size by optimizing graphics, removing unused screens, or compressing images. Ensure the project does not exceed the 10 MB memory limit of the KTP400 Basic.

Frequently Asked Questions

Which PLC families are compatible with the SIMATIC KTP400 Basic?

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 controllers using Ethernet connections when configured appropriately in TIA Portal.

What software is required to configure the 6AV6646-1BB22-1NA0?

The KTP400 Basic is configured using Siemens TIA Portal with the WinCC Basic engineering package. No separate standalone configuration software is supported for this panel generation.

Does the KTP400 Basic support PROFIBUS communication?

No, the 6AV6646-1BB22-1NA0 supports only PROFINET via its single RJ45 Ethernet interface. It does not have a PROFIBUS DP port.

What is the operating voltage of the KTP400 Basic panel?

The panel operates on 24 V DC with a typical power consumption of approximately 4.5 W.

What is the front panel protection rating of the KTP400 Basic?

The front of the panel is rated IP65, making it suitable for environments where dust and water jets may be present. The rear of the unit is rated IP20.

Troubleshooting

Display remains blank after power on

Measure the 24 V DC supply voltage at the panel's power connector. Check that polarity is correct and voltage is within the acceptable range. Inspect the power connector for loose or damaged wiring.

Correct any wiring faults or polarity errors. If supply voltage is confirmed correct and the display remains blank, the 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 IP address settings on both the panel and the PLC using TIA Portal. Use a network ping test to confirm the panel is reachable on the network. Inspect the RJ45 cable and connector for damage.

Assign correct and unique IP addresses to both devices within the same subnet. Replace the Ethernet cable if damaged. Ensure the PLC project has the HMI device configured in the network view of TIA Portal and the project is downloaded to both devices.

Touchscreen does not respond or responds inaccurately

Check if the touch area is physically damaged, dirty, or has moisture on the surface. Attempt to access the Start Center by pressing and holding the screen during boot to confirm if touch hardware is functional.

Clean the screen surface with a dry, lint-free cloth. If inaccurate touch response persists, perform a touchscreen recalibration via the panel's Start Center settings. If the touchscreen hardware is damaged, the unit requires physical repair or replacement.

Project download fails from TIA Portal

Confirm the panel is set to Transfer mode via the Start Center menu. Verify the engineering PC and panel are on the same network subnet. Check that no firewall or antivirus software is blocking the TIA Portal transfer process.

Set the panel to Transfer mode before initiating the download. Disable any firewall rules blocking TIA Portal communication. Ensure the correct panel IP address is entered in the TIA Portal device properties and retry the download.

Panel repeatedly restarts or enters a boot loop

Check the 24 V DC supply for voltage drops or instability under load. Inspect the project for configuration errors that may cause a runtime crash. Attempt to boot the panel without a project loaded via the Start Center.

Stabilize the power supply and ensure it can deliver sufficient current. If the panel boots correctly without a project, re-download a validated project from TIA Portal. If the boot loop continues without a project, a factory reset via the Start Center should be performed, followed by a fresh project download.

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