_VAR IF b THEN inst [...] Inst := ADR(instBase); ELSE [...] Inst := ADR(inst1); END_IF

the same time IF dwOldValue = 0 THEN // 0 means [...] successful ELSE Exclusive

Test : BOOL; END_VAR IF THEN x := 9; END_IF [...] 表达式而不是 'THEN' 本节内容如下 :

Interface PROGRAM PLC_PRG IF GetInterface() <> 0 THEN // ... END_IF [...] THEN // ... END_IF

_VAR IF (bInit) THEN p [...] Init := FALSE; END_IF IF (pFB <> 0) THEN pFB^(in

INT1:=INT1/2; IF INT1=0 THEN [...] division by zero *) END_IF

Test : BOOL; END_VAR IF bTest x := 9; END_IF 信息： C0006: 'THEN' 预期

IF xIsDone THEN RETURN; END_IF; i

类型不对应 *) IF b := (i = 1) THEN i := i + 1; END_IF

; // = 4294967295 END_VAR IF dateStart < dateCompare THEN IF [...] Start < ldateCompare THEN IF