Siemens 6AV6651-7HA02-3AA4 SIMATIC HMI KP300 Basic

Name: Siemens 6AV6651-7HA02-3AA4 SIMATIC HMI KP300 Basic
Brand: Siemens
SKU: 6AV6651-7HA02-3AA4
Price: 238.00 EUR
Availability: InStock

€ 238,00

Condition

Clear

SKU: 6AV6651-7HA02-3AA4 Category: HMI & Display Brand: Siemens

Description
Additional information

The Siemens 6AV6651-7HA02-3AA4 is a SIMATIC HMI KP300 Basic panel belonging to the Basic Panel family within Siemens' SIMATIC HMI product line. It is a key panel (pushbutton panel) designed for simple machine-level operator control and monitoring tasks, offering a compact and cost-effective solution for basic HMI requirements. This unit is configured and operated using the Siemens WinCC Basic (TIA Portal) engineering software.

The KP300 Basic features a 3-inch monochrome display with a resolution of 240 x 80 pixels, providing clear visualization of process values and status information. It is equipped with physical function keys for direct operator input, making it suitable for environments where touchscreen operation is not required. The panel communicates via PROFINET (Ethernet) and supports MPI/PROFIBUS DP interfaces, enabling integration into a wide range of Siemens PLC environments including S7-1200 and S7-300/400 series controllers. The unit operates on a 24 V DC supply and is rated IP65 on the front face for protection against dust and water ingress.

The KP300 Basic is typically deployed in machine building, manufacturing automation, and process control applications where a compact, robust operator panel is needed for straightforward control tasks. Its small footprint and keypad-based operation make it well suited for installation on control cabinets, machine panels, and enclosure doors where space is limited. Industries such as packaging, material handling, and general factory automation commonly use this panel for local operator interaction with PLCs and automation systems.

Technical Specifications

Display Size	3 inch
Display Resolution	240 x 80 pixels
Display Colors	Monochrome (STN)
Input/Operating Voltage	24 V DC
Power Consumption	2.5 W (typical)
Communication Interface	PROFINET (Ethernet RJ45), MPI/PROFIBUS DP
IP/Protection Rating	IP65 (front), IP20 (rear)
Operating Temperature	0 °C to +50 °C
Storage Temperature	-20 °C to +60 °C
Relative Humidity	10% to 90% (non-condensing)
Mounting	Panel mounting
Series/Product Family	SIMATIC HMI Basic Panel
Certifications	CE, UL, cULus
Engineering Software	WinCC Basic (TIA Portal)

Common Error Codes & System Events

Event ID: 10000: Connection to the PLC could not be established or was interrupted.
Check PROFINET or MPI/PROFIBUS DP cable connections, verify PLC IP address or station address configuration, and confirm the PLC is in RUN mode.
Event ID: 10001: Communication timeout with the configured PLC controller.
Verify network cabling and termination resistors on PROFIBUS. Check that the configured PLC address in the HMI project matches the actual PLC settings.
Event ID: 20000: Project download failed or project data is corrupted.
Re-download the HMI project via TIA Portal. Ensure the WinCC Basic project version is compatible with the firmware version on the panel.
Event ID: 40000: Internal device error or hardware fault detected.
Perform a factory reset of the panel. If the fault persists, the panel hardware may require replacement or professional repair.
Event ID: 50000: Firmware update failed or firmware version mismatch detected.
Re-initiate the firmware update using the correct firmware package for the KP300 Basic via TIA Portal or the Siemens Automation License Manager.
Event ID: 70000: Configuration error — the loaded project is incompatible with the connected device type.
Verify that the HMI device type selected in the TIA Portal project matches the physical panel model (KP300 Basic). Recompile and re-download the project.
Event ID: 30000: Tag or variable access error — a configured tag cannot be read from or written to the PLC.
Check that the PLC data block addresses and tag definitions in the HMI project are correct and that the PLC program has not been modified without updating the HMI project.

Frequently Asked Questions

Which PLCs are compatible with the KP300 Basic (6AV6651-7HA02-3AA4)?

The KP300 Basic is compatible with Siemens S7-1200, S7-300, and S7-400 series PLCs via PROFINET or MPI/PROFIBUS DP. It is configured using WinCC Basic within the TIA Portal engineering environment.

What communication interfaces does the 6AV6651-7HA02-3AA4 support?

This panel supports PROFINET via an RJ45 Ethernet port and MPI/PROFIBUS DP via a 9-pin Sub-D connector, allowing flexible integration into both modern and legacy Siemens automation networks.

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

The KP300 Basic requires Siemens TIA Portal with the WinCC Basic engineering package for project creation, configuration, and download to the device.

What is the front panel protection rating of the KP300 Basic?

The front face of the KP300 Basic is rated IP65, providing full protection against dust ingress and protection against low-pressure water jets, making it suitable for typical industrial panel installations.

Can the KP300 Basic be used with third-party PLCs?

The KP300 Basic is designed primarily for use with Siemens SIMATIC PLCs and does not natively support communication protocols for third-party PLC brands such as Allen-Bradley or Mitsubishi.

Troubleshooting

Display remains blank after power is applied

Measure the 24 V DC supply voltage at the panel's power connector. Verify polarity is correct and that the supply voltage is within the specified range.

Correct any wiring errors or supply voltage issues. If the supply is confirmed good and the display remains blank, the internal power supply or display unit may be faulty and the panel should be sent for repair.

Panel fails to communicate with the PLC after project download

Check the PROFINET IP address or MPI/PROFIBUS DP station address configured in the TIA Portal project against the actual PLC settings. Verify the Ethernet or PROFIBUS cable is correctly connected and undamaged.

Correct the IP address or station address in the TIA Portal project and re-download. Replace faulty cables or connectors. Ensure PROFIBUS termination resistors are correctly placed at both ends of the bus.

Function keys do not respond to operator input

Check whether the panel is in transfer mode or if a screen protection/lock function is active. Verify the project configuration for key assignments in TIA Portal.

Exit transfer mode by cancelling the transfer dialog. Review and correct key assignments in the WinCC Basic project. If keys are physically unresponsive, the keypad membrane may require replacement.

Firmware update fails or panel is stuck in update mode

Confirm that the firmware package being used matches the KP300 Basic device type and that the TIA Portal version supports the target firmware version. Check the USB or network connection used for the update.

Use the correct firmware file from the Siemens support portal. Restart the update process via TIA Portal. If the panel is stuck in bootloader mode, perform a factory reset using the panel's reset button and retry the firmware update.

Intermittent loss of connection between HMI and PLC during operation

Inspect the PROFINET or PROFIBUS cabling for loose connectors, excessive cable lengths, or sources of electromagnetic interference near the cable routing.

Secure all cable connections, replace damaged cables, and ensure cable routing follows EMC guidelines. For PROFIBUS, verify bus termination and that the cable length does not exceed the specification for the configured baud rate.

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