Error Handling in Robotic Arm Control

In a robotic arm controller, it is crucial to manage error states to ensure patient safety. You are tasked with implementing a function that takes a list of error states and returns a list of safe commands that can be executed. Each error state is represented by an integer where positive values indicate safe commands and negative values indicate errors.

Input

• A list of integers error_states where:
  • error_states[i] > 0 indicates a safe command.
  • error_states[i] <= 0 indicates an error state.

Output

• A list of integers representing the safe commands.