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← TechnologyWhich consequence results when sensor data latency overruns a PLC's scan cycle in a robotic welding cell?
A)Increased electrode burn-back frequency
B)Joint tracking precision decreases✓
C)Arc stability marginally improves
D)Shielding gas consumption lowers visibly
💡 Explanation
Decreased joint tracking precision happens because **dead time compensation** becomes inaccurate. Sensor data's delay causes the PLC to command movements based on outdated positions, therefore misaligning the weld path rather than maintaining accurate seam tracking with up-to-date feedback.
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