Which statement about payload data vs Arm Load Data is true?

• A. Payload data tells the robot what is moving; Arm Load Data tells about masses at joints
• B. Payload data tells about speeds; Arm Load Data tells about torque
• C. They are the same
• D. They refer to software versions

Answer: (A)

Think of payload data as the external load the robot is actually moving at its end effector—the tool, gripper, and any part being handled. It tells the controller what is being carried and moved, which influences safety checks and how aggressively the robot can move.

Arm Load Data, in contrast, describes the masses and inertia along the arm itself—the links and joints. This information is used to calculate the torques each joint must provide and to plan motions that respect the robot’s dynamic capabilities.

So the statement that payload data defines what is moving, while Arm Load Data describes the masses at the joints, is the accurate distinction. The other ideas don’t fit: payload isn’t about speeds, the two data sets aren’t the same, and they aren’t about software versions.