f1652577
滄海一聲笑!
級(jí)別: 探索解密
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圖片:
![]() MOV (SM402 ,K0,D20); MOV (SM402 ,K0,D21); FOR D20 :=K0 TO K99 BY K1 DO D20:= D20+K1; D21:= D21+D20; END_FOR; 模擬時(shí)為什么D21中的數(shù)值一直在變? |
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kylew
kylew
級(jí)別: 略有小成
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MOV (SM402 ,K0,D20); MOV (SM402 ,K0,D21); IF SM402 THEN FOR D20 :=K0 TO K99 BY K1 DO D20:= D20+K1; D21:= D21+D20; END_FOR; END_IF; 1+2+3+.....................+100 這個(gè)計(jì)算結(jié)果為什么是2500,不是應(yīng)該是5050嗎? 我PLC模擬計(jì)算的結(jié)果是2500 |
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