Siemens 6AV6643-0DB01-1AX1 is a SIMATIC HMI MP 277 8-inch key Multi Panel designed for industrial visualization, alarm handling, recipe management, operator input, and machine control. Its 7.5-inch TFT display provides 640 × 480-pixel graphics with 65,536 colors, while the membrane keyboard includes 26 function keys, 18 with LEDs. The panel provides 6 MB of application memory, one 10/100 Mbit/s Ethernet interface, one RS-422/RS-485 interface up to 12 Mbit/s, and two USB 1.1 host ports. A 24 V DC supply and front-panel key operation support reliable use in control cabinets. The 6AV6643-0DB01-1AX1 enables exact-model replacement and lifecycle continuity for installed MP 277 applications.

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