REACT program instruction Example The instruction below monitors the external input signal identified by the value of the variable test. If the desired signal transition occurs (as specified by the sign of the value of test), program execution branches to program delay as soon as the program priority drops to 0 (since no priority is specified in the instruction).
(The program priority is raised to 1 [the default value] when the subroutine is invoked; the program priority returns to 0 when the program returns.) REACT test, delay Related Keywords IGNORE program instruction LOCK program instruction PRIORITY real-valued function REACTE program instruction REACTI program instruction SIG.INS real-valued function eV+Language Reference Guide, v2.x, 18319-000 Rev A Page 419