Table of Contents

MPINO STUDIO 2 Phase 4-2 · Counter Box Functions

These commands count signal transitions and provide a current value and completion state.

These commands count signal transitions and provide a current value and completion state.

Common Rules

Use C for a 16-bit counter and DC for a 32-bit counter. The count changes once on each OFF-to-ON transition. A bit contact for the counter address reads its done state, and a ladder RESET coil initializes the current value. C0 through C10 are mapped to board functions on MPINO-8A4R(T)-S, so the examples on this page use C11 and C12.

Counter current value and done state

Box Function List

Command Meaning
CTU Increments the current value once whenever the left condition changes from OFF to ON.
CTD Preloads the current value with the set value, then decrements it once on each rising edge of the left condition.
CTUD While the left condition is ON, a rising edge on the up input adds one and a rising edge on the down input subtracts one.