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1 娴嬭瘯

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2锛氱��涓�娆℃壂鎻忓緱鐭�initing鐨勮烦杞�鏉′欢涓簍rue,绗�浜屾�℃壂鎻忕殑鏃跺�欏彧浼氭墽琛屽�栭儴鍔ㄤ綔锛屽嚭鍘诲姩浣滐紱
3锛歩niting鐨勫姩浣滄墽琛岄『搴忔槸锛屽厛鎵ц�屽唴閮ㄥ姩浣滐紝鍚庢墽琛屽�栭儴鍔ㄤ綔锛�
4: 濡傛灉鍦╥niting 鍐呴儴鍔ㄤ綔涓�鍦ㄥ祵濂楀瓙鐘舵�乻fc锛岀埗鐘舵�佽浆绉讳細鎵ц�岀埗鐨別xit鍔ㄤ綔锛屽瓙鐘舵�佸�傛灉鏄�鍥犱负鐖剁姸鎬佽浆绉昏�屼笉鎵ц�岋紝瀛愮姸鎬佺殑exit鍔ㄤ綔涓嶄細鎵ц�岋紝绫讳技history鍘嗗彶鐘舵�侊紝涓嬫�¤繘鍏ュ瓙鐘舵�佷細缁х画绱ф帴鐫�鎵ц�岋紱

2 闅愬紡鐨勫彉閲�

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:SFCStepType;
_:SFCActionType;

3 妯℃嫙

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1. 锛�*鐘舵�佺殑鏋氫妇绫诲瀷*锛�
2. TYPE StetaMachine :(
4. eMainStateInit:=16#00000001,
5. eMainState1  :=16#00000001,
6. eMainState2  :=16#00000002);
7. END_TYPE

澶嶅埗浠ｇ爜

1. 锛�*鍙橀噺瀹氫箟*锛�
2. iMainState       : StetaMachine := eMainState1 ;
3. iMainStateFollow : StetaMachine := eMainStateInit;
4. bMainStateExit   : BOOL:= FALSE;

澶嶅埗浠ｇ爜

1. {涓�銆佺姸鎬佸悕绉皚IF(iMainState OR eMainState1)<>0 THEN
2.    {1 entry 鍏ュ彛鍑芥暟---------------------------------------}IF(iMainStateFollow AND  eMainState1)=0THEN(*do1*)(*do2*)(*do3*)
3.        iMainStateFollow :=(iMainStateFollow OR eMainState1);
4.        bMainStateExit := FALSE;
5.    END_IF
6.    {2 鍐呴儴澶勭悊鍔ㄤ綔-----------------------------------------}
7.    IF bMainStateExit = FALSE THEN(*do1:澶勭悊鍔ㄤ綔   :*)(*do2:骞跺彂瀛愮姸鎬�1:*)(*do3:骞跺彂瀛愮姸鎬�2:*)
9.    END_IF
10.    {3 exit  鍑哄彛鍑芥暟-----------------------------------------}
11.    IF bMainStateExit = TRUE THEN
12.        bMainStateExit := FALSE;(*do1*)(*do2*)(*do3*)(* jump to state2:*){IF condition1 = TRUE THEN
13.             iMainState :=((iMainState XOR eMainState1) OR eMainState2);
14.             iMainStateFollow :=(iMainStateFollow XOR eMainState1);        
15.             RETURN;
16.          END_IF}(* jump to state3:*){IF condition2 = TRUE THEN
17.             iMainState :=((iMainState XOR eMainState1) OR eMainState3);
18.             iMainStateFollow :=(iMainStateFollow XOR eMainState1);        
19.             RETURN;
20.         END_IF}
21.    END_IF
22.    
23.    {4 璺宠浆鏉′欢鍒ゆ柇-------------------------------------------}(*鏉′欢閫夋嫨鍒嗘敮1: judge_jump_to_state1 :*){IF condition1 = TRUE THEN
24.          bMainStateExit := TRUE;
25.          RETURN;
26.       END_IF}(*鏉′欢閫夋嫨鍒嗘敮2: judge_jump_to_state2 :*){IF condition2 = TRUE THEN
27.           bMainStateExit := TRUE;
28.           RETURN;
29.       END_IF}
30. END_IF
34. {閫夋嫨鍒嗘敮锛岄�夋嫨鏄�涓�涓�铏氭嫙鐘舵��,鏄�涓�涓�鐬�闂寸姸鎬亇
35. IF iMainState =2THEN(*IF condition THEN
36.         jump to state3
37.         iMainState :=((iMainState XOR eMainState2) OR eMainState3);      
38.      ELSE      
39.         jump to state4
40.         iMainState :=((iMainState XOR eMainState2) OR eMainState4);   
41.      END_IF*)
42. END_IF
44. {3.1 骞惰�屽紑濮�,骞惰�屾槸涓�涓�铏氭嫙鐘舵��,鏄�涓�涓�鐬�闂寸姸鎬亇
46. IF iMainState =3 THEN
47.    {JUMP TO STATE4}{JUMP TO STATE5}
48.    iMainState :=((iMainState XOR eMainState3) OR eMainState4 OR eMainState5 );
49. END_IF
52. {3.2 骞惰�屽紑濮�,骞惰�屾槸涓�涓�铏氭嫙鐘舵��,鏄�涓�涓�鐬�闂寸姸鎬亇
53. IF iMainState =4THEN(*IF condition1 AND condition2 AND condition3 AND conditionN THEN
54.      {jump to state5}
55.      iMainState :=((iMainState XOR eMainState4) OR eMainState5
56. END_IF*)
57. END_IF

澶嶅埗浠ｇ爜

4 璁″垝锛氱悊瑙ｅ叧鑱斿姩浣滃苟鐢ㄤ唬鐮佹ā鎷�

5 璁″垝锛氱悊瑙�SFC鐨勬爣蹇�

6 璁″垝锛氬畬鍠刢odesys鐘舵�佹満妯℃澘浠ｇ爜