Siemens 6AV6643-0BA01-1AX0 SIMATIC OP 277 5.7" – Key + Touch Panel, 4 MB, WinCC Flexible, PROFINET/DP

Siemens 6AV6643-0BA01-1AX0 SIMATIC OP 277 5.7" – Key + Touch Panel, 4 MB, WinCC Flexible, PROFINET/DP - Image 2

Siemens 6AV6643-0BA01-1AX0 SIMATIC OP 277 5.7″ – Key + Touch Panel, 4 MB, WinCC Flexible, PROFINET/DP

Product Overview

The 6AV6643-0BA01-1AX0 is Siemens’ SIMATIC OP 277 5.7″ — the key-and-touch composite operator panel in the OP 277 family, positioned between the pure-touch TP 277 (6AV6643-0AA01) and the larger MP 277 7.5″/10.4″ multi-panels. “OP” in the Siemens HMI hierarchy of the WinCC Flexible era denotes a membrane-keyboard-forward device with 24 programmable function keys (18 with LEDs) plus a resistive touch overlay for screen navigation — the hybrid formula that dominated machine-level visualization from roughly 2005 through 2015 before the Comfort range (KP/TP 700/900/1200) took over. The 6AV6643-0BA01-1AX0 carries a 5.7-inch TFT at 320×240 and 256 colors, LED/CCFL backlit at ~60 000 h MTBF at 25 °C, and runs Windows CE on a 32-bit RISC with 4 MB Flash user memory / 64 MB RAM. Configuration is native in WinCC Flexible 2005 Standard SP1 or higher; TIA Portal cannot directly download to the 6AV6643-0BA01-1AX0 — it can import the Flexible project for migration, but online commissioning and runtime download still require a Flexible workstation, which is the single biggest friction point for plants trying to keep these panels alive on S7-300/400 cells that haven’t moved to S7-1500 yet.

The 6AV6643-0BA01-1AX0 communicates over a highly versatile port set: one RJ45 that carries MPI, PROFIBUS DP (master/slave), PROFINET IO, and TCP/IP — meaning the same cable can link to an S7-315-2 PN/DP, a third-party drive on Modbus TCP, and an upstream SCADA all at once depending on the protocol stack chosen per connection. Auxiliary interfaces include RS422, RS485, a USB 1.1 host (mouse, keyboard, printer, stick), and an MMC slot (≤128 MB) for recipe/alarm archives and project backup. The panel is the direct evolutionary successor to the OP 270 (xP 270 family), with which it shares cutout dimensions (282 × 178 mm) and many I/O behaviors — Siemens explicitly markets OP 270 → OP 277 conversion with the caveat that RS232 and CF-card behaviors differ. For machine builders and sustainment engineers, the 6AV6643-0BA01-1AX0 represents the last “compact key-heavy” Siemens HMI before the Comfort range went wide-format and touch-heavy; its 2015 “blocked for delivery” status and 2021 PM410 cancellation mean current sourcing is refurbished/tested-spares and NOS, which is exactly the buyer profile here.

Description

Technical Specifications

Parameter Name	Parameter Value
Product Model	6AV6643-0BA01-1AX0
Manufacturer	Siemens
Product Type	SIMATIC OP 277 5.7″ Operator Panel (Key + Touch Composite)
Display	5.7″ TFT, 256 colors, 320 × 240 px
Backlight	CCFL / LED class, ~60 000 h @ 25 °C
Function Keys	24 programmable F-keys (18 with LEDs) + 36 system keys
Touch	Resistive overlay (composite with keys)
Memory	4 MB Flash (user) / 64 MB RAM
Processor	32-bit RISC, Windows CE
Supply Voltage	24 V DC (20.4–28.8 V)
Current / Power	0.67 A typ. / ≈16 W
Interface	1 × RJ45 (MPI/PN/PROFIBUS DP/TCP), 1 × RS422, 1 × RS485, 1 × USB 1.1, 1 × MMC slot (≤128 MB)
Protocols	MPI, PROFIBUS DP, PROFINET IO, TCP/IP, Modbus (via further protocols)
Protection	IP65 front / IP20 rear (NEMA 4x, cULus, FM, EX Zone 2/22)
Front / Cutout / Depth	308 × 204.5 mm / 282 × 178 mm / 57 mm
Config Software	WinCC Flexible 2005 Standard SP1+ (TIA: import only, no direct download)
Status	PM410 cancelled 2021-10-01, EOL spare market

Main Features and Advantages

Key + touch composite for gloved-shop durability. The 6AV6643-0BA01-1AX0 keeps the OP-family DNA: 24 programmable F-keys with 18 LED annunciators, plus 36 system keys (cursor, ACK, menu, ESC, numeric/alpha pad), overlaid on a resistive touch screen. On packaging lines, metalworking cells, and batching skids where oil mist, powder, or coolant splashes make pure-touch unreliable by hour 6 of a shift, the physical keys give deterministic Start/Stop/Jog/Reset/ACK that a TP277 cannot match. The 6AV6643-0BA01-1AX0 touch layer is there for recipe browsing, alarm list scrolling, and parameter entry screens where a key-matrix would be clumsy — the best of both ergonomics without jumping to a 7-inch Comfort that changes the cutout.

RJ45 multitasking — MPI + DP + PN + TCP on one cable. The star interface on the 6AV6643-0BA01-1AX0 is a single RJ45 that the firmware multiplexes: native MPI to an S7-300 CPU, PROFIBUS DP master/slave to drives or remote IO, PROFINET IO to S7-1200/1500 neighbours, and plain TCP/IP for SCADA uplink or Sm@rtService remote access. For a cell with mixed-generation PLCs — say an S7-315-2 PN/DP talking to legacy MM440 drives on DP and a WinCC Runtime on TCP — the 6AV6643-0BA01-1AX0 collapses three interface cards into one cable. Modbus (via “further protocols”) also rides the RJ45, useful for third-party weigh scales, barcode guns, or non-Siemens PLCs (Allen-Bradley, Mitsubishi, Modicon referenced in Siemens’ own cross-vendor list for this panel).

WinCC Flexible project maturity and OP 270 migration path. Plants sitting on OP 270 (xP 270) projects can convert to the 6AV6643-0BA01-1AX0 with minor rework — Siemens documents the path explicitly (exception: RS232 and CF-card behaviors differ; the OP 277 drops CF in favor of MMC and restructures the RS port set to RS422/485). For lines that have run OP 270 for 15 years, the 6AV6643-0BA01-1AX0 is the closest-surviving member with the same 282×178 cutout, same 24F-key philosophy, and Flexible-native config — avoiding a forced jump to TIA and a Comfort panel with a wider cutout and no LED function keys (KP700 Comfort drops to 8 F-keys, no LEDs, 7″ widescreen — not a like-for-like).

Sm@rtService / Sm@rtAccess & FDA-traceability features. The 6AV6643-0BA01-1AX0 supports Siemens’ Sm@rtService (remote dial-in maintenance over telephone/ISDN/VPN) and Sm@rtAccess (cross-HMI viewing) — valuable for OEMs supporting machines installed at customer sites 500 km away. Recipe management, archiving (CSV format), script (VBScript subset in Flexible), and non-volatile alarm buffering meet FDA 21 CFR Part 11 traceability basics for pharma/batch skids, which is why the OP 277 hung on in pharma longer than TP 277. Up to 16 online languages (32 per project), including Asian and Cyrillic character sets — relevant for export machinery.

Multi-key operation and direct-key mapping. The 24 F-keys on the 6AV6643-0BA01-1AX0 support “direct key” assignment — e.g., a key can be mapped to toggle a PROFINET IO device bit directly without the Flexible runtime processing the event, reducing latency for E-Stop-override or cycle-start on fast cycled machines. Multi-key operation (2-key combos) is also supported for privileged actions (parameter unlock, mode change) to prevent accidental trigger — a small but real advantage over pure-touch where glove误触 is harder to guard.