Siemens 6AV6640-0CA11-0AX1 HMI Operator Panel

Siemens 6AV6640-0CA11-0AX1 TP177micro HMI is a compact, 5.7-inch blue-mode STN touch-panel designed for SIMATIC S7-200 PLCs, delivering a 320 × 240-pixel display and an analog resistive touchscreen for operator input. It configures with WinCC Flexible 2004 Micro SP1 and later, and ships with open-source software components provided by Siemens for development and deployment on S7-200 projects. The blue-mode display supports four colors and provides straightforward visual feedback, while the unit has no dedicated hardware keys; all interaction occurs via the touch surface, with a backlight MTBF rated around 50,000 hours at 25°C. As a TP177micro variant, it is intended for compact operator interfaces on SIMATIC S7-200 systems, enabling basic monitoring and control in small automation applications and serving as a direct turnkey HMI option within that ecosystem.