The Siemens 6AV6647-0AK11-3AX0 is a Simatic hmi ktp400 basic color pn for industrial control and automation applications.

What Is the Siemens 6AV6647-0AK11-3AX0?

Siemens 6AV6647-0AK11-3AX0 is a SIMATIC HMI KTP400 Basic Color PN operator panel with a 4.3 in TFT display and a 24 V DC supply. It combines key and touch operation in a compact housing, making it a practical choice for machine-level visualization in demanding oil and gas environments.

This panel is built for demanding environments where dependable local control matters. The 4.3 in widescreen TFT shows 256 colors at 480 x 272 pixels, so operators can read process values and alarms clearly. Because the unit accepts a 24 V DC rated supply with a permissible range of 19.2 V to 28.8 V, it tolerates the voltage sag common on plant DC buses.

Key Features and Technical Specifications

• Display: 4.3 in TFT widescreen with 256 colors and 480 x 272 pixel resolution.
• Display dimensions: 95 mm wide by 53.8 mm high active area.
• Supply voltage: 24 V DC rated, with permissible range from 19.2 V to 28.8 V DC.
• Current consumption: 0.1 A at rated value, with 0.5 A²·s starting current inrush I²t.
• Power consumption: 2 W typical.
• Operating temperature: 0 °C to 50 °C for vertical installation; 0 °C to 40 °C at maximum tilt angle.
• Storage and transport temperature: -20 °C to 60 °C.
• Relative humidity: 90 % maximum during operation, no condensation.
• Protection: IP65 front, including Type 4 front.
• Interfaces: One industrial Ethernet interface with PROFINET, plus Modbus TCP/IP and EtherNet/IP support.
• Weight: 0.34 kg without packaging.

The combination of a wide DC input range and a 2 W typical power draw keeps the panel within the capacity of most control cabinets. In addition, the IP65 front rating supports mounting in washdown-adjacent areas when the enclosure is correctly sealed.

How Does the 24 V DC Supply Support Field Reliability?

Input voltage is a common failure point on operator panels in oil and gas plants. This unit accepts 24 V DC nominal, with a permissible range of 19.2 V to 28.8 V. This headroom helps the panel ride through temporary dips on a loaded DC bus without dropping the display. Rated current consumption is 0.1 A, so the load on the power supply is modest. The starting current inrush I²t of 0.5 A²·s is also low, which reduces stress on upstream fuses and breakers during power-up.

Operating Temperature and Environmental Limits

Ambient temperature during operation depends on mounting orientation. For vertical installation, the panel operates from 0 °C to 50 °C. At maximum tilt angle, the upper limit is 40 °C. In portrait format, vertical installation allows 0 °C to 40 °C, and maximum tilt angle allows 0 °C to 35 °C. Storage and transport range from -20 °C to 60 °C. Relative humidity during operation may reach 90 % without condensation. These limits suit control rooms and sheltered process skids, but the panel should not be exposed to condensing moisture.

Comparison with Similar Product Categories

Buyers often compare this panel with other operator interfaces and with industrial Ethernet switches used in the same cabinet. The comparison below uses only verified data for this model.

• Versus basic text panels: This unit adds a 4.3 in color TFT and touch operation, while retaining key operation with 4 function keys.
• Versus larger HMI panels: this unit has a 4.3 in diagonal and 0.34 kg weight, so it fits smaller cutouts and lighter mounting arms.
• Versus industrial Ethernet switches: the panel includes one industrial Ethernet interface with PROFINET, Modbus TCP/IP and EtherNet/IP support, but it is an HMI, not a network switch.
• Versus panels without PROFINET: this model provides a PROFINET interface for controller integration, which simplifies wiring in Siemens-driven lines.

Integration and Configuration Notes

The panel is configured from WinCC Basic V11 SP2 or STEP 7 Basic V11 SP2. It provides one industrial Ethernet interface with two status LEDs. Supported Ethernet protocols include TCP/IP, DHCP, SNMP, DCP and LLDP, and the unit also lists Modbus TCP/IP and EtherNet/IP support. When wiring into a PROFINET network, confirm cables and connectors with the supplier. Integration may require an external gateway or connection module depending on the existing network architecture.

Applications in Oil and Gas Operations

This panel suits local visualization on pump skids, compressor packages and small process trains. Operators can view process values and acknowledge alarms through the touch screen or the function keys. Because the front is rated IP65, the panel can be mounted in enclosures that face dusty or wet plant environments. The 24 V DC supply also matches common control power in oil and gas facilities, which simplifies retrofits. For mission-critical loops, the panel should be paired with a controller that continues to run if the HMI is offline.

Frequently Asked Questions

What is the input voltage range of the Siemens unit?

The Siemens unit uses a 24 V DC rated supply with a permissible range of 19.2 V to 28.8 V DC.

What is the operating temperature for this HMI panel?

For vertical installation, the Siemens unit operates from 0 °C to 50 °C. At maximum tilt angle the upper limit is 40 °C.

Does this panel support PROFINET?

Yes. The Siemens unit includes one industrial Ethernet interface with PROFINET support, along with Modbus TCP/IP and EtherNet/IP.

How much power does This unit draw?

Typical power consumption is 2 W, and rated current consumption is 0.1 A at 24 V DC.

What is the display size and resolution?

The Siemens unit has a 4.3 in TFT display with 256 colors and 480 x 272 pixel resolution.

Contact PetroPartsOnline for parts suited to your application's requirements.

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