1. A system for controlling one or more actuators, the system comprising: a first processor configured to transmit a command to operate at least one of the one or more actuators; a second processor having an input coupled to said first processor and having an output, said second processor configured to transmit a first signal based on said command, said first signal indicating a compliant command; and a third processor having an input coupled to said output of said second processor and having an output configured to couple to the one or more actuators, said third processor configured to transmit a second signal based on said first signal, said second signal indicating a safe command.