Description
The 6AV6648-0BC11-3AX0 is a SIMATIC HMI SMART 700 IE touch panel from Siemens, part of the SMART LINE family purpose-built for the China/APAC mid-tier OEM market. It pairs a 7-inch 16:9 widescreen TFT (800×480, 65K colors) with an isolated RS-422/485 serial port and an RJ-45 Ethernet interface, natively targeting S7-200 SMART and LOGO! controllers while also speaking Modbus RTU/TCP to third-party PLCs (Mitsubishi, Schneider, Omron, Delta). Configured from WinCC flexible 2008 SP4 China (or the later WinCC Flexible SMART V3), it delivers recipe management, trend display, and alarm buffering in a compact, cost-optimized footprint that slots into packaging, textile, plastics, and standalone machine applications where a full Comfort Panel would be overspec’d.
h2 Application Scenarios
A Jiangsu-based stretch-film extrusion OEM standardized its 18-model product line on the S7-200 SMART CPU (SR40) + 6AV6648-0BC11-3AX0 combo back in 2014—one panel per machine for temperature-zone setpoints, die-gap recipe recall, and alarm ack. The OEM’s pain point was never processing power; it was BOM cost and panel cutout size. Their previous 5.7″ TP177B panels (4:3, 320×240) forced cramped screen layouts and still cost nearly 40% more than the SMART 700 IE. Switching to the 6AV6648-0BC11-3AX0 gave them a 16:9 widescreen that fit three temperature-trend curves side by side without scrolling, plus the isolated RS-485 port let them daisy-chain a Mitsubishi FR-E700 VFD and a Delta DVP-ES2 auxiliary PLC on the same Modbus RTU bus—no extra gateway. Twelve years later, the OEM still buys refurbished 6AV6648-0BC11-3AX0 units for spares because the S7-200 SMART racks themselves aren’t being retired yet. Their service lead puts it plainly: “For a stand-alone extruder, you don’t need PROFINET or S7-1200. You need a 7-inch screen that talks S7-200 SMART natively, survives washdown with IP65 front, and doesn’t break the CAPEX. That’s this panel.”
h2 Parameter
| Main Parameters | Value/Description |
|---|---|
| Product Model | 6AV6648-0BC11-3AX0 |
| Manufacturer | Siemens (SIMATIC HMI, SMART LINE) |
| Product Category | Touch Panel, 7″ Widescreen (SMART Series) |
| Display | 7″ TFT, 16:9, 800 × 480 px, 65 536 colors |
| Touch / Keys | Resistive touch only; 0 hardware function keys (on-screen keyboard) |
| Supply Voltage | 24 V DC (19.2–28.8 V range), ~0.35 A rated |
| Interfaces | 1 × RS-422/485 (isolated, adaptive), 1 × RJ-45 Ethernet (TCP/IP, DHCP) |
| PLC Connectivity | S7-200, S7-200 SMART, LOGO! (Ethernet); Modbus RTU/TCP to 3rd-party PLCs |
| User Memory / CPU | 2 MB Flash + RAM; ARM processor |
| Protection | Front IP65 / Rear IP20; CE certified |
| Operating Temp | 0 °C to +50 °C (vertical mount, ≤35° tilt) |
| Config Software | WinCC flexible 2008 SP4 China / WinCC Flexible SMART V3 |
| Lifecycle | End of Product Lifecycle (successor: SMART 700 IE V4, MLFB 6AV6648-0DC11-3AX0) |
h2 Technical Principles and Innovative Values
Innovation Point 1: Native S7-200 SMART + LOGO! Ethernet Without a CP Card. Most budget HMI panels force you through a serial gateway to talk S7-200-class PLCs. The 6AV6648-0BC11-3AX0 builds Ethernet straight onto the RJ-45 port with S7 protocol support for S7-200 SMART (up to 4 PLCs per panel) and LOGO! 8—no communications processor, no extra cabling, just a CAT5e drop from panel to PLC. For OEMs standardizing on the SR/ST CPU family, this makes the 6AV6648-0BC11-3AX0 a zero-friction HMI pairing.
Innovation Point 2: Isolated RS-422/485 + Modbus RTU for Mixed-Vendor Cells. The 9-pin Sub-D isn’t just a programming port—it’s isolated and auto-switches between RS-422 and RS-485, letting the 6AV6648-0BC11-3AX0 sit on a Modbus RTU trunk alongside Mitsubishi, Schneider (Quantum/M340/Momentum), Omron, and Delta DVP-series PLCs. A single panel can thus be the faceplate for a hybrid cell where the main logic runs on S7-200 SMART but drives, load cells, or aux PLCs are third-party—common in Asian OEM exports where the end-user already runs Schneider or Mitsubishi upstream.
Innovation Point 3: 16:9 Widescreen in a Legacy-Friendly Footprint. Moving from old 5.7″ 4:3 panels (OP/TP 170, OP 177) to the 6AV6648-0BC11-3AX0 gives 800×480 pixels—roughly 2.3× the screen real estate—while the cutout width (≈154 mm) stays close to what many 6″ class panels already occupy. The 7″ 16:9 format fits three trend pens + alarm banner + recipe keys on one screen without the “fat bezel” penalty of 10″ panels. And with 32 project languages (Simplified/Traditional Chinese, English, Japanese, Korean, etc.) baked in, an OEM can ship the same .hmi project to a domestic line and an export line, toggling runtime language at the login screen.
