logic system & bit control
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d a n
LOGIC SYSTEMBIT CONTROL
Pertemuan - 6
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PLC seperti komputer, dapat menyimpan informasi dalamwujud kondisi on atau off (1 atau 0) yang dikenal dengan
biner digit (bit).
Sistem bilangan biner digunakan ole PLC dengan tigakarakteristik, yaitu ! digit, dasar dan bobot.
"anya memiliki # digit ! digit $ dan %
&asar # 'obot %, #, , , %6 *.
JENIS NUMBER SYSTEM
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+asing masing bagian dari data biner adala suatu bit.
&elapan bit menyusun satu byte
&ua bytes atau %6 bit menyusun satu word
bit, Bytes dan Words
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BCD (SISTEM DESIM! C"DE BINER#
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'C& adala angka - angka desimal dimana tiap
digit bilangan desimal masing - masing diwakili ole
suatu angka biner bit.
'C& biasanya digunakan untuk alat masukan dan
alat keluaran.
ombol tumbweel adala onto dari suatu alat
masukan yang menggunakan 'C&.
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/mpat digit tombol dari tumbweel akan mengendalikan %6
(0) masukan dari PLC. Peratikan onto tumbweel
dibawa ini !
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$E%DESIM!
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&"N'ERSI N&
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BCD T" BINRY
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Ta)*i+an &ode Error *ada Mesin Unt- Me+a.a- S)ber
Masa+a/ Yang Ti)b+
!I&SI BCD
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CodeStats "t*t
01000 01001 01002 01003 01004 01005 01006 01007
a 12 12 12 12 12 12 133 12
b 12 133 133 12 12 12 12 12
. 12 133 133 133 12 12 133 12
d 12 133 12 12 12 12 133 12
Input Peralatan
00001 S1
00002 S2
00003 S3
00004 S400005 PB-Reset
enga+a)atan I8"
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Proportional ontrol of temperature
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MT$ INSTRUCTI"N
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