Description
(Small clarification upfront: the user input “6av2_124-0qc02-0ax0” maps to 6AV2124-0QC02-0AX0, which is the Siemens SIMATIC TP1500 Comfort — a 15.4″ widescreen touch HMI — not the 12″ TP1200. The QC02 suffix denotes 15″, while MC01 is the 12″ variant. The sheet below is written for the 15″ TP1500 Comfort as the model defines.)
The 6AV2124-0QC02-0AX0 is Siemens’ SIMATIC TP1500 Comfort panel — a 15.4″ widescreen TFT touch HMI in the Comfort Panel family, powered by an ARM Cortex-A8 processor with 24 MB configuration memory and Windows CE 6.0. It natively carries PROFINET (10/100 Mbps, IRT-capable) and MPI/PROFIBUS DP interfaces, making it the default central-operator-station HMI for S7-1200/1500 and S7-300/400 cabinets in automotive body shops, F&B bottling lines, cement finish mills, and water-treatment MCC rooms. The model is PM410 cancelled (July 2022) with direct successor 6AV2124-0QC02-0AX1 and longer-term migration to Unified Comfort 6AV2128-3QB06-0AX1 — a point every MRO buyer needs to know before stocking.
h2: Application Scenarios
In a three-shift automotive body shop running 28 S7-1500 weld-cells, the central HMI station for the roof-line transfer skids used a 6AV2124-0QC02-0AX0 TP1500 Comfort mounted in a stainless hood above the cell-3 buffer table. After seven years of continuous duty, the backlight dimmed to ~40% of nameplate (approaching the 80,000 h MTBF envelope), and the night-shift lead started complaining that the alarm banner “blended into the background” under the bay’s 600 lx overhead LEDs. The integrator’s first quote was a full panel swap to the 6AV2124-0QC02-0AX1 (direct successor), but the cutout dimensions differ slightly (“!installation dimensions!” per Siemens warning), meaning the hood would need re-machining — a 14-hour downtime ticket. Instead, the team sourced a NOS 6AV2124-0QC02-0AX0 as a like-for-like drop-in, cloned the CFast image from the old unit (WinCC Comfort V13 SP1 project, forward-compatible with the -0AX0 hardware), and swapped in 45 minutes during a planned tool-change window. The backlight restored full 1600-nit-class contrast, the hood stayed untouched, and the cell’s OEE didn’t blink. Six months later, the plant used that same swap lesson to build a 1:6 sparing ratio across all 22 TP1500 positions before committing to a full Unified migration in the next capital cycle.
h2: Parameter
| Main Parameters | Value/Description |
|---|---|
| Product Model | 6AV2124-0QC02-0AX0 (TP1500 Comfort) |
| Manufacturer | Siemens AG (SIMATIC HMI) |
| Product Category | Comfort Panel – Touch Operation |
| Display | 15.4″ widescreen TFT, 1280 × 800 px, 16.7 M colors |
| Touch Type | Analog resistive (glove-compatible) |
| Processor / OS | ARM Cortex-A8 / Windows CE 6.0 |
| Configuration Memory | 24 MB Flash + RAM |
| Interfaces | PROFINET RJ45 (10/100, IRT), MPI/PROFIBUS DP (Sub-D 9-pin) |
| Power Supply | 24 V DC (–20 % / +25 %), typ. 1.5 A / 36 W |
| Backlight MTBF | ~80,000 h (half-life) |
| Protection | IP65 front (Type 4 / 4x), IP20 rear |
| Operating Temp. | 0 °C to +50 °C (vertical); –20 °C to +60 °C transport |
| Lifecycle | PM410 cancelled (Jul 2022); successor 6AV2124-0QC02-0AX1 → Unified 6AV2128-3QB06-0AX1 |
h2: Technical Principles and Innovative Values
Innovation Point 1: Dual-Native Fieldbus in One Cutout. The 6AV2124-0QC02-0AX0 collapses what used to need two HMI SKUs — a PROFINET panel + a DP coupler — into one 15″ widescreen with both RJ45 PROFINET (including IRT for isochronous S7-1500 loops) and a 9-pin MPI/PROFIBUS DP port. This matters on brownfield retrofits where the S7-300 legacy backbone still runs DP but the new S7-1500 cell runs PROFINET — one HMI talks to both worlds without a protocol gateway.
Innovation Point 2: ARM Cortex-A8 + 24 MB Lets Complex Screens Breathe. Cheap 7″ panels choke on 600-object screens with embedded trend and PDF viewer. The 6AV2124-0QC02-0AX0 pushes 750 configurable screens, 4096 device-level tags, 40 complex objects per screen (alarm view, trend f(x), Sm@rtClient, recipe, camera IP) — enough to run a multi-language batch recipe plant with 500-text-list entries without “tap-and-wait” lag.
Innovation Point 3: Project Forward-Compatibility Across -0AX0 → -0AX1 → Unified. The 6AV2124-0QC02-0AX0 compiles from WinCC Comfort V11 SP2 onward; the -0AX1 needs V14 SP1. Siemens’ “Modernization Checker” and Data2Unified tool can lift a -0AX0 project to Unified 6AV2128-3QB06 with ~80% object auto-migration, which is why many plants keep -0AX0 spares alive through the PM410 window while staging a controlled jump to Unified rather than rushing a like-for-like -0AX1 buy.
Innovation Point 4: IP65 Front + Type 4/4x in a 15″ Industrial Form Factor. The front foil on the 6AV2124-0QC02-0AX0 is rated for hose-down and resists cutting-oil mist / dairy washdown at the front face, while the rear remains IP20 inside the cabinet hood — the classic “panel-through-door” compromise that lets maintenance wipe the screen without opening the enclosure.
