"Overrode default jerk in cam disc #4. Enabled 5th-order motion. Relaxed SDI limit per real encoder feedback. Do not change MC_CamIn interpolation type without re-tuning the mechanical stops."

In the cam disc profile that linked the master encoder (conveyor position) to the slave axis (gantry height), someone—probably a long-gone intern—had set the jerk limit to #DEF_JERK . That default value was fine for a pick-and-place of empty cardboard boxes. But for a 12 kg cryo-pump with a sticky vacuum seal? The jerk was slamming the mechanical brake like a teenager learning stick shift.

For the first time in two weeks, the hum of the control room sounded less like a threat and more like a lullaby.

She hit and traced the graph.

The velocity curve was no longer a jagged mountain range. It was a smooth S-curve, then a gentle plateau, then a cosine-like deceleration into the press zone. The jerk spikes that had been rattling the linear guides? Gone. They looked like a sleepy EKG compared to the previous seizure.

But Scout 4.3 had another layer. The safety logic. She opened the editor (the orange-tinged one that made her sign digital waivers). The STO (Safe Torque Off) was fine, but the SDI (Safe Direction) limit was set too aggressively for the new cam profile.

Friday morning, she walked Henrik to the line. The first pump cycled: whoosh, press, retract. Smooth as warm butter. The second. The third. The trace display showed a perfect, repeatable S-curve.

Scout v4.3 was her only weapon. To the uninitiated, it looked like a dense thicket of XML, MCC charts, and LAD/FBD blocks. But Mira knew its secrets. She had started on Scout 4.1, survived the migration to 4.3’s stricter DCC (Drive Control Chart) chaining, and learned to love its offline simulation environment as a kind of digital confessional.