Inside the control room of Arthur Ashe Stadium's retractable roof

With just a few taps on a touchscreen HMI, the two 1-million-pound roof panels separate to let the sun shine down on the tennis court in Arthur Ashe Stadium.

With just a few taps on a touchscreen HMI, the two 1-million-pound roof panels separate to let the sun shine down on the tennis court in Arthur Ashe Stadium. The panels move at a rate of 25 feet per minute up an arced radius via two winches per roof. Each of the winches includes five 30-HP motors geared to a bull gear that propels a 72-inch diameter drum. Dual two-inch wire ropes connect each drum to the roof through an equalizer assembly, providing protection against a single rope failure and provides rope break detection. This solution incorporates a fiber optic ring with six Siemens Scalance X200 switches, which provide the stable foundation for the Profinet communications from PLC to S120 drives, ET200S I/O, and HMI including PROFIsafe via Profinet.



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