Siemens 6AV6646-1BA22-1AA1 SIMATIC KTP400 Basic

Name: Siemens 6AV6646-1BA22-1AA1 SIMATIC KTP400 Basic
Brand: Siemens
SKU: 6AV6646-1BA22-1AA1
Price: 863.00 EUR
Availability: InStock

€ 863,00

Condition

Clear

SKU: 6AV6646-1BA22-1AA1 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6646-1BA22-1AA1 is a SIMATIC KTP400 Basic Panel, part of the SIMATIC Basic Panel series from Siemens. It is a compact human-machine interface (HMI) device featuring a 4-inch widescreen TFT display with integrated key and touch operation. This panel is designed for straightforward visualization and operator control tasks in machine-level automation applications.

The KTP400 Basic panel offers a 4" widescreen TFT display with a resolution of 480 x 272 pixels and 64,000 colors, providing clear and readable process visualization. It supports both touch and key operation through 4 configurable function keys, allowing flexible interaction modes. Communication is handled via a PROFINET interface (RJ45), enabling integration into modern Ethernet-based automation networks. The panel is configured using Siemens TIA Portal with WinCC Basic engineering software, and supports a project memory of 10 MB. Operating voltage is 24 V DC, and the unit carries CE and UL certifications.

The SIMATIC KTP400 Basic is widely used in small to medium-sized machinery across manufacturing, packaging, food and beverage, and building automation industries. Its compact 4-inch form factor makes it suitable for installation in confined control cabinet doors or machine panels where space is limited. The combination of touch and key operation makes it adaptable to environments where gloved operation or dedicated function key access is required.

Technical Specifications

Display Size	4 inch (widescreen)
Display Resolution	480 x 272 pixels
Display Colors	64,000 colors
Display Type	TFT LCD
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 (RJ45, 10/100 Mbit/s)
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	122 x 95 mm
Certifications	CE, UL, cULus
Engineering Software	TIA Portal with WinCC Basic

Common Error Codes & System Events

Event ID: 10000: Configuration error detected on startup. The loaded project is incompatible with the panel firmware version.
Re-download the project from TIA Portal ensuring the firmware version matches the configured HMI device version. Update panel firmware if necessary.
Event ID: 20000: Communication connection to PLC lost or not established. PROFINET connection is interrupted.
Check PROFINET cable and RJ45 connector integrity. Verify IP address configuration on both the panel and PLC. Check network switch status.
Event ID: 40000: Tag read/write error. A configured tag cannot be read from or written to the connected controller.
Verify the PLC data block and tag addresses in TIA Portal. Ensure the PLC program is running and the DB is not write-protected.
Event ID: 70000: Project download failed. Transfer to the HMI panel was interrupted or unsuccessful.
Check the PROFINET connection between engineering PC and panel. Ensure the panel is in transfer mode and no firewall is blocking the TIA Portal transfer.
Event ID: 50000: Internal device error. A hardware or firmware fault has been detected on the panel.
Perform a factory reset via the Start Center (Control Panel). If the error persists, update the firmware or replace the panel.
Event ID: 30000: Alarm buffer overflow. The number of pending alarms exceeds the panel buffer capacity.
Acknowledge and clear active alarms in the HMI runtime. Review alarm configuration in TIA Portal to reduce simultaneous alarm load.

Frequently Asked Questions

What communication interface does the KTP400 Basic (6AV6646-1BA22-1AA1) support?

The KTP400 Basic supports one PROFINET interface via an RJ45 connector operating at 10/100 Mbit/s. It does not natively support PROFIBUS or MPI without additional hardware.

Which engineering software is required to configure this panel?

The 6AV6646-1BA22-1AA1 is configured using Siemens TIA Portal with the WinCC Basic engineering package. WinCC Comfort or Advanced licenses are not required for this panel.

Is the KTP400 Basic compatible with S7-1200 and S7-1500 PLCs?

Yes, the KTP400 Basic communicates natively with Siemens S7-1200 and S7-1500 PLCs via PROFINET. It can also communicate with S7-300 and S7-400 PLCs that have a PROFINET interface.

What is the operating voltage of this HMI panel?

The panel operates on 24 V DC. It is typically powered from a dedicated 24 V DC power supply unit within the control cabinet.

Can the KTP400 Basic be operated with gloves?

Yes, the panel supports operation via 4 physical function keys in addition to the resistive touch screen, making it suitable for use with gloves in industrial environments.

Troubleshooting

Display remains blank after power on

Measure 24 V DC supply voltage at the power connector on the rear of the panel. Check that polarity is correct and voltage is within the 20.4–28.8 V DC tolerance range.

Correct the supply voltage or replace the 24 V DC power supply if out of range. If voltage is correct and display remains blank, the internal backlight or power supply board may be faulty and the panel should be repaired or replaced.

Panel does not establish PROFINET connection to PLC

Check the RJ45 cable and connector for physical damage. Verify the IP address, subnet mask, and device name configured on the panel match the settings in the TIA Portal project and PLC configuration.

Replace the Ethernet cable if damaged. Reconfigure the IP address via the panel Start Center (Control Panel > Ethernet settings). Re-download the project from TIA Portal after correcting network parameters.

Touch screen does not respond or responds inaccurately

Check for physical damage or contamination on the touch surface. Determine whether the issue is localized to a specific area of the screen or affects the entire display.

Clean the touch surface with a soft, dry cloth. Perform a touch screen calibration via the Start Center (Control Panel > Touch Calibration). If the issue persists, the touch panel overlay may require replacement.

Project download fails from TIA Portal

Verify that the engineering PC and the HMI panel are on the same network subnet. Confirm the panel is in transfer mode (accessible via Start Center > Transfer). Check for firewall or antivirus software blocking TIA Portal communication.

Set the panel to transfer mode manually via the Start Center. Disable firewall rules blocking TIA Portal on the engineering PC. Ensure the correct device IP address is entered in the TIA Portal download dialog.

Runtime alarms are not displayed or alarm list is empty

Check the alarm configuration in TIA Portal to confirm alarm tags are correctly linked to PLC data addresses. Verify the PLC connection is active and the relevant PLC bits are being set.

Re-examine alarm tag connections in TIA Portal WinCC Basic. Re-download the project after corrections. Confirm PLC program logic is triggering the alarm bits as expected during testing.

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