If you have questions about our products, Fill out the form below and we will answer any questions you have. Tips: Fields marked with*are required. Woodward 5463-473 C SIO CPU Module Introduction The Woodward 5463-473 C SIO (Serial Input/Output) CPU Module is a robust control processor engineered for industrial automation applications requiring reliable logic execution, flexible I/O handling, and secure communication. A *Your Name: *Your Email: *Your Name: *Vdcode: Submit