Siemens SIMATIC HMI KTP Basic Panels: 6AV2123-2JB03-0AX0

Technical Dossier

Product Details And Specifications

Siemens SIMATIC HMI KTP Basic Series Technical Notes

The Siemens SIMATIC HMI KTP Basic panel series is one of the most widely deployed human-machine interface platforms in global heavy industry. Installed across petrochemical complexes, nuclear auxiliary systems, offshore platforms, and continuous-process refineries, the KTP Basic line occupies the entry-to-mid tier of Siemens' SIMATIC HMI portfolio. Its combination of resistive touch and dedicated function keys (Key and Touch Panel architecture) makes it the preferred interface for environments where gloved-hand operation, high-vibration conditions, or fail-safe key acknowledgment are mandatory. The 6AV2123-2JB03-0AX0 — a 7-inch widescreen TFT variant with PROFINET interface — represents the third-generation revision of the KTP700 Basic platform and remains one of the highest-volume SKUs in active industrial maintenance cycles worldwide.

The Evolution of KTP Basic Architecture

The KTP Basic lineage originates from Siemens' rationalization of the OP/TP panel families in the early 2000s under the SIMATIC HMI Comfort and Basic segmentation introduced with TIA Portal V11 (2011). The original KTP series used a 4:3 display ratio and RS-422/RS-485 serial interfaces. With the transition to the KTP Basic PN generation (PROFINET-only), Siemens standardized on 16:9 widescreen displays, eliminated serial variants from the mainstream catalog, and introduced the current 6AV2123-x series part numbering. The -0AX0 suffix denotes the standard firmware revision without safety-rated extensions. Compatibility constraints are significant: KTP Basic panels require WinCC Basic (TIA Portal) for configuration and are not compatible with WinCC Comfort or WinCC Advanced projects without migration. Older OP 77B or TP 177 projects require full re-engineering. The KTP Basic PN generation does not support MPI or PROFIBUS natively — a critical consideration for legacy S7-300/S7-400 installations, which require an intermediate PROFINET-capable CPU or CP module.

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

The following SKUs represent verified active and recently discontinued models within the KTP Basic PN product family. All standard models operate under WinCC Basic (TIA Portal) and communicate via PROFINET IO.

KTP400 Basic PN (4-inch)

• 6AV2123-2DB03-0AX0: KTP400 Basic PN, 4" WQVGA TFT, 4 function keys, PROFINET, portrait/landscape

KTP700 Basic PN (7-inch)

• 6AV2123-2GB03-0AX0: KTP700 Basic PN, 7" widescreen TFT, 8 function keys, PROFINET, portrait orientation
• 6AV2123-2JB03-0AX0: KTP700 Basic PN, 7" widescreen TFT, 8 function keys, PROFINET, landscape — current primary SKU

KTP900 Basic PN (9-inch)

• 6AV2123-2KJ00-0AX0: KTP900 Basic PN, 9" TFT 800x480, 8 function keys, PROFINET only

KTP1200 Basic PN (12-inch)

• 6AV2123-2MA03-0AX0: KTP1200 Basic PN, 12.1" TFT 1280x800, 10 function keys, PROFINET
• 6AV2123-2MB03-0AX0: KTP1200 Basic PN color, 12.1" TFT landscape, PROFINET

KTP700 Basic DP (PROFIBUS — legacy/lifecycle)

• 6AV2123-2GB03-0AX0: KTP700 Basic DP, 7" TFT, PROFIBUS DP interface, lifecycle phase
• 6AV6647-0AE11-3AX0: TP 177A DP — functional predecessor to KTP700 Basic DP, discontinued
• 6AV6647-0AB11-3AX0: TP 177B DP/PN — dual-interface predecessor, discontinued
• 6AV6642-0BA01-1AX0: OP 77B — operator panel predecessor, keypad-only, discontinued

Accessories & Replacement Components

• 6AV2181-8XP00-0AX0: Protective film for KTP700 Basic, pack of 3
• 6AV2181-8AP00-0AX0: Protective film for KTP400 Basic, pack of 3
• 6AV2181-8MP00-0AX0: Protective film for KTP1200 Basic, pack of 3
• 6AV2125-2AE23-0AX0: KTP700 Basic PN spare front panel assembly
• 6GK1901-1BB10-2AE0: IE FC RJ45 Plug 180 — standard PROFINET connector for KTP Basic installations
• 6ES7972-0BB52-0XA0: PROFIBUS connector for legacy DP-interface KTP variants

Quality Control for the KTP Basic Range

KTP Basic panels present specific test challenges due to their integrated resistive touchscreen digitizer, backlight inverter circuitry, and PROFINET ASIC stack. DriveKNMS applies the following test protocol to all KTP Basic units prior to dispatch:

• Full display calibration: pixel uniformity, backlight luminance measurement (minimum 300 cd/m² for 7" variants), and dead-zone mapping across the touch matrix
• PROFINET communication validation: cyclic data exchange test with S7-1200/S7-1500 CPU at 100 Mbit/s, device name assignment, and I-Device mode verification where applicable
• Function key actuation test: mechanical and electrical continuity check on all 8 function keys
• Firmware version audit: confirmation of TIA Portal compatibility level and runtime version stamping
• Thermal burn-in: 4-hour continuous operation at 45°C ambient to screen latent component failures
• Visual and cosmetic inspection: bezel integrity, connector pin condition, and label legibility

Units failing any single test criterion are quarantined for component-level repair or parts recovery. No unit is dispatched without a passing test record on file.