请问各位一个问题。下面这个指令能把LB0和LB1置位ON
bool result,I,A,B
SETBITON(result, A, 0)// result is 1
SETBITON(I, B, 0)// I is 1
SetData(result, "Local HMI", LB, 0, 1)
SetData(I, "Local HMI", LB, 1, 1)
但是用下面这样,则不能把LB0和LB1置位OFF。为什么呢?
bool result,I,A,B
SETBITOFF(result, A, 0)// result is 1
SETBITOFF(I, B, 0)// I is 1
SetData(result, "Local HMI", LB, 0, 1)
SetData(I, "Local HMI", LB, 1, 1) |