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8/6/2019 1 so bt ve PLC
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BI TP PLC
BI TP PLCBI 1: nh thi gian
a.Phn b u vo/ra :
b.Chng trnh iu khin:
BI 2: Theo di sn phm hng
8/6/2019 1 so bt ve PLC
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BI TP PLC
a.Phn b u vo/ra:
c. Chng trnh iu khin :
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BI TP PLC
BI 3: H thng cp nhit chnha.Quy trnh cng ngh:Bn nu nc Q0.1 c nu t ng khi mc nc chm cm
bin nhit phng I0.2 to h thng si Q0.2 v mc nc
dng ln tip n cm bin nhit to h thng nc nng Q0.3.b.Phn b u/vo:
c.Chong trnh iu khin:
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BI TP PLC
BI 4: Chng trnh trn sna.Quy trnh cng ngh:Mu sn c to bi 3 mu cp bi 3 ng c Q0.1, Q0.2,
Q0.3 v ng c trn Q0.0
Khi h thng sn c bm , ng c trn s tip tc trong10 giy ri dng. Sau qu trnh trn sn s tho qua van Q0.4 vng c x Q0.5 cho n khi cm bin mc thp I0.3 dng x.Qu trnh c tip tc cho m khc.
b.Phn b u vo/ra:
c. Chng trnh iu khin:
8/6/2019 1 so bt ve PLC
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BI TP PLC
8/6/2019 1 so bt ve PLC
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BI TP PLC
BI 5: Bng chuyn ng hpa. Quy trnh cng ngh:Khi bng chuyn 1 chy ti gp cm bin 1 th hp dng li nhn sn
phm.Khi cm bin nhn th bng chuyn 2 chy a snphm ti hp. Khi cm bin 2 m 5 sn phm th bng chuyn 1 tip tc
chuyn ng.Qu trnh c tip tc nh vy.b.Phn b u vo/ra:
c.Chng trnh iu khin :
8/6/2019 1 so bt ve PLC
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BI TP PLC
8/6/2019 1 so bt ve PLC
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8/6/2019 1 so bt ve PLC
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BI TP PLC
8/6/2019 1 so bt ve PLC
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BI TP PLC
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BI TP PLC
BI 7: H thng ting chim bo khcha. Quy trnh cng ngh:Khi c khch n trc cng th cm bin pht hin vt cn tc
ng n b pht m thanh ting chim trong thi gian 5 giy v
bo bit l c khch.b. Phn b u vo/ra:
c.Chng trnh iu khin:
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BI TP PLC
Bi 8: Phn loi sn phm mua.Quy trnh cng ngh:H thng rt bi c quy nh bi ng c Q0.0. Khi bi chy
trn bng ti th cm bin mu en I0.2 tc ng n van Q0.1
y bi en sang hp mu en. Cn I0.2 khng tc ng thi bi s vo hp mu trng.b.Phn cng u vo/ra:
c.Chng trnh iu khin:
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BI TP PLC
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BI TP PLC
Bi 9: H thng nhp mt m cho ca hnh chnha.Quy trnh cng ngh:Mun vo c ca hnh chnh cn nhp ng mt m. Mt mgm 2 trong ba s yu cu nhp: I0.2, I0.3, I0.4. Nhp ng th
ca m, sai th yu cu nhp li.b.Phn cng u vo/ra:
c.chng trnh iu khin:
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BI TP PLC
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BI TP PLC
Bi 10: H thng bo v dp laa.Quy trnh cng ngh:Ti khu vc kho hng, nu c chy th cm bin khi s tc
ng h thng ci trong 5 giy ng c dp la v cng trong
thi gian h thng x cung cp nc dp la.
b.Phn cng u vo/ra:
c.Chng trnh iu khin: