CASE step OF
1 : Do something
2 : IF (NOT oldStep)
THEN
counter := counter+1;
END_IF;
oldStep := true;
On transition to next step
oldStep := false;
3 : Do something
END_CASE;CASE NewState OF
0: // STATE 0
IF OldState <> NewState
// DO OTHER ON ENTRY CODE HERE
OldState = NewState
END_IF
// DO CODE THAT GET EXECUTED EVERY SCAN HERE. POSSIBLY CHANGE NewState TO THE NEXT STATE
IF OldState <> NewState THEN
// DO CLEAN UP CODE FOR CURRENT STATE ON EXITING STATE
END_IF
1: // STATE 1
IF OldState <> NewState
// DO OTHER ON ENTRY CODE HERE
OldState = NewState
END_IF
// DO CODE THAT GET EXECUTED EVERY SCAN HERE. POSSIBLY CHANGE NewState TO THE NEXT STATE
IF OldState <> NewState THEN
// DO CLEAN UP CODE FOR CURRENT STATE ON EXITING STATE
END_IF
2: // STATE 2
IF OldState <> NewState
// DO OTHER ON ENTRY CODE HERE
OldState = NewState
END_IF
// DO CODE THAT GET EXECUTED EVERY SCAN HERE. POSSIBLY CHANGE NewState TO THE NEXT STATE
IF OldState <> NewState THEN
// DO CLEAN UP CODE FOR CURRENT STATE ON EXITING STATE
END_IF
3: // STATE 3
IF OldState <> NewState
// DO OTHER ON ENTRY CODE HERE
OldState = NewState
END_IF
// DO CODE THAT GET EXECUTED EVERY SCAN HERE. POSSIBLY CHANGE NewState TO THE NEXT STATE
IF OldState <> NewState THEN
// DO CLEAN UP CODE FOR CURRENT STATE ON EXITING STATE
END_IF
// ADD STATES AS NECESSARY
END_CASE
, going to do it like it when I have time to do it. Or maybe better said, when I have time for priority class where those practice programs belong (ppl usually get what they really want, also ppl have time for things they really want to do. That does not exclude that sometimes something needs to be done before something that would be more pleasant to do).
Start a new thread
