On March 26, 2012, filmmaker and National Geographic Explorer-in-Residence James Cameron piloted a one-man submersible almost 7 miles (11 km) to the deepest point in the world's oceans. He reached the sea floor in the DEEPSEA CHALLENGER, a technologically advanced prototype submersible. At the heart of the submersible, an off-the-shelf Opto 22 SNAP PAC System controls and monitors more than 180 onboard systems-including depth sensors, batteries, thrusters, life support, 3D cameras, and lighting. The SNAP PAC System used in the sub is the same standard product used in a wide variety of applications worldwide. The system includes a SNAP-PAC-S2 programmable automation controller, a rack-mounted I/O processor, and analog, serial, and high-density digital I/O modules. The PAC Project Professional Software Suite was used for control programming and HMI development and runtime.

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