Siemens SIMATIC HMI KTP Basic Panel Modules

Technical Dossier

Product Details And Specifications

Siemens SIMATIC HMI KTP Basic Panel Series: Comprehensive Module Range and Technical Overview

The Siemens SIMATIC HMI KTP (Key-Touch Panel) Basic Panel series represents one of the most widely deployed human-machine interface platforms in global heavy industry. Installed across petrochemical complexes, nuclear power auxiliary systems, offshore oil & gas platforms, pharmaceutical batch processing lines, and steel mill automation networks, the KTP Basic Panel line occupies a defined position in Siemens' tiered HMI architecture — positioned above the Micro Panel class and below the Comfort Panel class in terms of processing capability and feature set.

The series is characterized by a hybrid input concept combining resistive touch screen operation with dedicated function keys (4 or 8 keys depending on display size), enabling reliable operation in environments where gloved-hand input or high-vibration conditions preclude pure touchscreen interfaces. Display sizes range from 4-inch WQVGA to 15-inch XGA, covering the majority of panel-mount and cabinet-door installation requirements encountered in process and discrete manufacturing environments.

KTP Basic Panels are engineered for integration with Siemens S7-1200 and S7-1500 PLC families via PROFINET, and retain backward compatibility with S7-300/400 systems through Ethernet-based communication. The series is configured exclusively via Siemens TIA Portal (WinCC Basic / WinCC Comfort), making it a standard component in TIA-based automation architectures deployed from approximately 2012 onward.

As of 2024, the KTP Basic Panel series has entered a mature/end-of-active-development phase. Siemens continues to supply current-generation units and provide firmware updates, but the architectural focus has shifted toward the SIMATIC HMI Unified Comfort Panel platform. This transition creates sustained demand for KTP spare parts and replacement units across installed base maintenance programs with 10–20 year operational horizons.

The Evolution of SIMATIC HMI KTP Basic Panel Architecture

The KTP Basic Panel lineage traces to the early 2000s with the TP/OP series under the SIMATIC Panel family, which operated on Windows CE and communicated via MPI, PROFIBUS DP, and early Ethernet protocols. These units — including the TP 177, OP 177, and TP 277 — established the form factor and key-touch hybrid input model that persists in the current KTP generation.

Generation 1 (2008–2012): KTP Basic PN (First Generation)
The first KTP-designated panels introduced PROFINET as the primary communication interface, replacing MPI/PROFIBUS as the default protocol. Units such as the KTP400 Basic PN and KTP600 Basic PN were configured via WinCC flexible 2008, which has since been superseded. These panels are now fully obsolete and are no longer manufactured. Compatibility with TIA Portal requires migration projects and is not natively supported.

Generation 2 (2012–2018): KTP Basic PN (TIA Portal Generation)
The second generation, introduced alongside TIA Portal V11/V12, standardized on WinCC Basic as the configuration environment. This generation includes the widely deployed KTP700 Basic PN (6AV2123-2GB03-0AX0) and KTP900 Basic PN (6AV2123-2JB03-0AX0). These units support S7-1200/1500 natively and remain in active production as of 2024, though firmware development has plateaued.

Generation 3 / Current (2018–present): KTP Basic PN with updated firmware baseline
Minor hardware revisions introduced improved display brightness, revised enclosure ratings, and expanded TIA Portal version compatibility (V14 through V19). The core communication and processing architecture remains unchanged from Generation 2. The 6AV2123 order number prefix is consistent across this generation.

Transition to Unified Platform (2022–present)
Siemens introduced the SIMATIC HMI Unified Comfort Panel series as the strategic successor platform. Unified panels run a Linux-based OS, support OPC UA natively, and are configured via WinCC Unified. KTP Basic Panels are not part of the Unified roadmap; existing KTP installations are expected to be maintained on the current TIA Portal / WinCC Basic toolchain for the duration of their operational life.

Compatibility Note: KTP Basic Panels configured in TIA Portal V13 or earlier may require project migration before opening in TIA Portal V16+. Firmware versions are tied to TIA Portal versions; mismatches between panel firmware and TIA Portal project version are a common source of commissioning errors during replacement unit installation.

SIMATIC HMI KTP Basic Panel Full Catalog & Functionalities (SKU List)

The following catalog covers the primary current-generation and recent-legacy KTP Basic Panel SKUs. All units communicate via PROFINET (PN) unless otherwise noted.

4-Inch Display Class

6AV2123-2DB03-0AX0: KTP400 Basic PN — 4" WQVGA (480x272) TFT color display, 4 function keys, PROFINET, 24 VDC, IP65 front, TIA Portal V13+.

6AV6647-0AA11-3AX0: KTP400 Basic Mono PN — 4" STN monochrome display, 4 function keys, PROFINET, 24 VDC, IP65 front, legacy monochrome variant.

6-Inch Display Class

6AV2123-2GB03-0AX0: KTP600 Basic PN — 5.7" QVGA (320x240) TFT color display, 6 function keys, PROFINET, 24 VDC, IP65 front, TIA Portal V13+.

6AV6647-0AB11-3AX0: KTP600 Basic Mono PN — 5.7" STN monochrome, 6 function keys, PROFINET, 24 VDC, IP65 front, legacy monochrome variant.

7-Inch Display Class

6AV2123-2GB03-0AX0: KTP700 Basic PN — 7" WVGA (800x480) TFT color display, 8 function keys, PROFINET, 24 VDC, IP65 front, TIA Portal V13+. High-volume standard panel for S7-1200/1500 systems.

6AV6647-0AG11-3AX0: KTP700 Basic PN (legacy order number) — 7" WVGA TFT color display, 8 function keys, PROFINET, 24 VDC, IP65 front. Functionally equivalent to 6AV2123-2GB03-0AX0; used in installations commissioned prior to 2015.

6AV2123-2GA03-0AX0: KTP700 Basic DP — 7" WVGA TFT color display, 8 function keys, PROFIBUS DP interface, 24 VDC, IP65 front. Specified for legacy S7-300/400 PROFIBUS networks.

9-Inch Display Class

6AV2123-2JB03-0AX0: KTP900 Basic PN — 9" WVGA (800x480) TFT color display, 8 function keys, PROFINET, 24 VDC, IP65 front, TIA Portal V13+.

6AV6647-0AH11-3AX0: KTP900 Basic PN (legacy order number) — 9" WVGA TFT color display, 8 function keys, PROFINET, 24 VDC, IP65 front. Legacy order number for pre-2015 procurement.

10-Inch Display Class

6AV2123-2JA03-0AX0: KTP1000 Basic PN — 10.4" SVGA (800x600) TFT color display, 8 function keys, PROFINET, 24 VDC, IP65 front, TIA Portal V13+.

6AV6647-0AJ11-3AX0: KTP1000 Basic PN (legacy order number) — 10.4" SVGA TFT color display, 8 function keys, PROFINET, 24 VDC, IP65 front.

12-Inch Display Class

6AV2123-2MA03-0AX0: KTP1200 Basic PN — 12.1" XGA (1024x768) TFT color display, 10 function keys, PROFINET, 24 VDC, IP65 front, TIA Portal V13+.

6AV6647-0AK11-3AX0: KTP1200 Basic PN (legacy order number) — 12.1" XGA TFT color display, 10 function keys, PROFINET, 24 VDC, IP65 front.

15-Inch Display Class

6AV2123-2PA03-0AX0: KTP1500 Basic PN — 15.4" WXGA (1280x800) TFT color display, 10 function keys, PROFINET, 24 VDC, IP65 front, TIA Portal V13+. Largest display class in the KTP Basic series.

6AV6647-0AL11-3AX0: KTP1500 Basic PN (legacy order number) — 15.4" WXGA TFT color display, 10 function keys, PROFINET, 24 VDC, IP65 front.

PROFIBUS DP Variants

6AV2123-2GA03-0AX0: KTP700 Basic DP — 7" WVGA, PROFIBUS DP, 8 function keys. For S7-300/400 DP networks.

6AV2123-2JA03-0AX0: KTP1000 Basic DP — 10.4" SVGA, PROFIBUS DP, 8 function keys. For S7-300/400 DP networks.

Sourcing Hard-to-Find & Obsolete SIMATIC HMI KTP Basic Panel Parts

DriveKNMS maintains a dedicated inventory program for SIMATIC HMI KTP Basic Panel units, covering both current-production models and discontinued legacy variants. The primary sourcing challenge for KTP panels arises in three scenarios: (1) procurement of first-generation KTP units (pre-2012, WinCC flexible era) for like-for-like replacement without system migration; (2) sourcing of specific legacy order numbers required to match existing plant documentation and spare parts lists; and (3) rapid replacement of failed units in production environments where lead times from standard distribution channels are operationally unacceptable.

DriveKNMS sources KTP Basic Panel units through a verified secondary market network, including decommissioned plant equipment, authorized surplus channels, and tested pull-out units from controlled environments. All units are subject to pre-shipment inspection and functional verification before dispatch.

For installations where the original KTP order number is no longer available through standard channels, DriveKNMS provides cross-reference support to identify functionally equivalent current-production alternatives, including assessment of firmware compatibility and TIA Portal project migration requirements. This service is particularly relevant for KTP400/600 Basic PN first-generation units and KTP panels with PROFIBUS DP interfaces, both of which have reduced availability in standard distribution.

Long-term maintenance contracts for KTP Basic Panel spare parts are available for facilities operating multiple units across extended maintenance cycles (5–15 years). Contact DriveKNMS to discuss consignment stock arrangements and priority allocation programs.

Quality Control for the SIMATIC HMI KTP Basic Panel Range

KTP Basic Panel units present specific quality control requirements that differ from standard PLC module testing due to the integration of display assemblies, touch digitizers, and embedded operating systems alongside the communication and I/O hardware.

DriveKNMS applies the following test protocol to all KTP Basic Panel units processed through its facility:

Power-On and Boot Verification: Each unit is powered at rated 24 VDC and verified to complete the boot sequence to the operating system level without error codes or display artifacts. Boot time is logged and compared against manufacturer specifications.

Display Uniformity Test: Full-screen color field tests (red, green, blue, white, black) are applied to identify dead pixels, backlight non-uniformity, and display delamination. Units with pixel defects exceeding manufacturer-defined thresholds are rejected.

Touch Digitizer Calibration and Response Test: The resistive touch layer is tested across a defined grid of input points to verify linearity and response accuracy. Function key actuation is tested for contact resistance and mechanical integrity.

PROFINET Communication Test: Each unit is connected to a test S7-1200 PLC via PROFINET and verified for successful tag communication, alarm handling, and screen navigation under a standardized test project loaded via TIA Portal.

PROFIBUS DP Communication Test (DP variants): DP-interface units are tested on a live PROFIBUS DP segment at 1.5 Mbit/s and 12 Mbit/s baud rates to verify bus participation and data integrity.

Firmware Version Documentation: The installed firmware version is recorded for each unit. Units with firmware versions below the minimum recommended level for the target TIA Portal version are flagged, and firmware update service is offered prior to shipment.

Enclosure and Connector Inspection: Front bezel, rear housing, and all connectors (PROFINET RJ45, power terminal, USB service port) are inspected for mechanical damage, corrosion, and seal integrity. IP65 gasket condition is assessed on all front-panel units.