Siemens 6AV2124-0JC01-0AX0​ SIMATIC TP900 Comfort 9″ Touch HMI Panel

Description

Application Scenarios

In a mid-size pharmaceutical packaging line, operators supervise carton erectors, blister fillers, and case sealers through a bank of 6AV2124-0JC01-0AX0​ touch panels mounted along the conveyor corridor. When one of the original TP900 Comfort units developed backlight degradation after nine years of 24/6 operation, the maintenance team needed an exact replacement to avoid re-engineering the WinCC Comfort project or re-validating the GMP documentation package. Because the 6AV2124-0JC01-0AX0​ stores its configuration in 12 MB of non-volatile memory and boots from a standard Windows CE 6.0 image, the technician simply cloned the SD card, unclipped the failing unit from the cabinet cutout, and snapped the replacement panel into place — restoring full line visibility in under 10 minutes with zero project recompilation. The 9-inch widescreen format displayed six concurrent process parameters, a live alarm banner, and a 2-hour trend chart without scrolling, while the analog-resistive touchscreen responded flawlessly to operators wearing nitrile gloves in the cleanroom environment. This case underscores why verified stock of the 6AV2124-0JC01-0AX0​ is indispensable for plants running validated legacy TIA Portal projects where any HMI change triggers costly re-qualification.

Parameter

Technical Principles and Innovative Values

• Innovation Point 1: 2-Port Integrated PROFINET Switch with MRP & IRT.​ The 6AV2124-0JC01-0AX0​ embeds a 2-port PROFINET switch directly on the panel, enabling line-topology daisy chaining without external switches. With Media Redundancy Protocol (MRP) support from WinCC V12 onward, the 6AV2124-0JC01-0AX0​ participates in redundant PROFINET rings — a single cable break no longer isolates the HMI from the controller. Isochronous Real-Time (IRT) support further enables the panel to synchronize visualization updates with motion control cycles as tight as 1 ms.
• Innovation Point 2: 40 Direct Touch Keys Mapped as Native S7 Inputs.​ Beyond the analog-resistive touchscreen, the 6AV2124-0JC01-0AX0​ supports 40 “direct touch keys” that map directly to S7 input peripheral addresses. This means operators can press on-screen buttons that bypass the Windows CE runtime layer entirely — the controller sees the input within one PLC scan regardless of HMI application status. For safety-relevant acknowledgments and emergency stops, this architectural shortcut eliminates the latency of the visualization stack.
• Innovation Point 3: 9-Inch Widescreen Form Factor with 16M Colors and Dimmable LED.​ The 9-inch 16:9 TFT on the 6AV2124-0JC01-0AX0​ delivers 16,777,216 colors at 800×480 resolution — 40% more display area than previous 4:3 generation panels. The LED backlight is infinitely dimmable from 0–100% via PROFIenergy, HMI script, or controller command, reducing power consumption during idle shifts and extending the 80,000-hour backlight service life well beyond 10 years in typical duty.
• Innovation Point 4: Dual SD Card Slots with Power-Failure Data Integrity.​ The 6AV2124-0JC01-0AX0​ features two SD card slots enabling project backup, data logging, and recipe storage. Critically, the panel’s onboard circuitry ensures data integrity on the SIMATIC HMI storage card even during sudden power loss — a design that prevents project corruption and eliminates the need for UPS-protected HMI circuits in most installations.
• Innovation Point 5: Comprehensive Protocol Stack Without Additional Licenses.​ Out of the box, the 6AV2124-0JC01-0AX0​ natively speaks PROFINET IO, PROFIBUS, MPI, TCP/IP, EtherNet/IP, Modbus TCP, HTTP/HTTPS, SNMP, DCP, and LLDP. This universal protocol fluency allows the panel to integrate seamlessly into heterogeneous automation landscapes — Siemens SIMATIC controllers, Rockwell Logix, Modbus TCP field devices, and third-party Ethernet/IP instruments — without purchasing separate communication licenses.
• Innovation Point 6: Hazardous Area & Marine Certification Built-In.​ The 6AV2124-0JC01-0AX0​ carries ATEX Zone 2/22 and IECEx Zone 2/22 certifications for explosive atmospheres, plus marine approvals from GL, ABS, BV, DNV, LR, and NK. This makes the panel deployable in offshore platforms, chemical processing areas, and shipboard automation without additional enclosure modifications — a rare capability in the 9-inch HMI class.

Application Cases and Industry Value

A European specialty chemicals producer operates a batch processing plant with 28 reactor vessels, each supervised by a Siemens 6AV2124-0JC01-0AX0​ Comfort Panel mounted in the local operator station. The plant’s challenge was twofold: first, the ATEX Zone 2 classification of the reactor area demanded certified equipment; second, the batch recipes required displaying extensive parameter sets, trend data, and alarm history simultaneously. The Siemens 6AV2124-0JC01-0AX0​ met both requirements — its ATEX Zone 2 certification eliminated the need for expensive pressurized enclosures, while the 9-inch widescreen TFT comfortably rendered the 800×480 batch visualization screens originally engineered in WinCC Comfort V11. Over six years of operation, the plant documented zero HMI-related batch interruptions across all 28 stations. The 2-port PROFINET switch architecture allowed each panel to connect in a linear network topology, saving approximately €14,000 in managed-switch hardware and associated cabling. When Siemens announced the Phase Out of the 6AV2124-0JC01-0AX0, the plant’s engineering team proactively secured a strategic buffer stock of 12 genuine units and simultaneously initiated a migration study to the 6AV2128-3KB06-0AX1​ Unified Comfort Panel. The plant’s automation manager praised the Siemens 6AV2124-0JC01-0AX0​ for its “bulletproof reliability in a corrosive atmosphere” — the IP65 front bezel withstood repeated washdown cycles with aggressive cleaning agents, showing no ingress or cosmetic degradation after 6+ years of service.