Structured Text; Function Block Example - Allen-Bradley Logix5000 Reference Manual

Chapter 3 Timer and Counter Instructions (TON, TOF, RTO, TONR, TOFR, RTOR, CTU, CTD, CTUD, RES)
132
Example:
Each scan that limit_switch1 is set, the TONR instruction increments the ACC
value by elapsed time until the ACC value reaches the PRE value. When
ACC ≥ PRE, the DN parameter is set, and timer_state is set.

Structured Text

TONR_01.Preset := 500;
TONR_01.Reset : = reset;
TONR_O1.TimerEnable := limit_switch1;
TONR(TONR_01);
timer_state := TONR_01.DN;

Function Block Example

Rockwell Automation Publication 1756-RM003N-EN-P - October 2011