Status

one shell, 22 state machines

Two degrees of freedom — labels queued and labels on the roll — both decremented per landing; headline, status word, shortfall and the label it stops at are all derived. Roll empty with the batch unfinished stops the machine; a new roll resumes it.

Label Printer/packing line · P2

Roll runs short

231 labels left

The roll runs out nine labels into the batch

240 labels are queued and 231 are left on the roll, so the run stops at label 232 unless a new roll goes on first

queued: 240 labelsbatch 5104
on the roll: 231 left9 short
media: 50 × 25 mmthermal

Printer P2 · Packing line

Mechanisma consumable runs out1 of 22The shell, the clock, the scene grammar and the derivation rule are shared; this card contributes its state machine and its device. Every word above is computed from that state in this render — there is no second copy.