Ladder diagram For Automatic Door

For Saturday night, i'll try to post about PLC.
This time i share about automatic door. This automatic door use Sensor for detect human, and 2 limit switch, one for Close, and other for open. Look this picture below :

I/O table for automatic door used PLC siemens S7-200 cpu 224 :
Input device : 
1. Motion sensor Inside address I0.0
2.Motion sensor outside address I0.1
3.Limit switch open address I0.2
 4.Limit switch closed address I0.3
5.selector switch automatic mode address I0.4
6.selecor switch manual mode address I0.5
7.push button open manual I0.6
8.push button closed manual I0.7
9.Emergency stop I1.0

Output device:
1.Kontaktor motor closed Q0.0
2.kontaktor motor open Q0.1 2. pilot Lamp emergency Q0.2
3.piloy lamp manual mode Q0.3
4.pilot lamp automatic mode Q0.4

Ladder diagram

Next time, i'll post with indonesian language and use other software simulation for beginner.

Happy Learn ^_^

Introduction of LCD Interface

I have an article from my friend. I think i can share it to you. I hope this article will useful for you.. :)
Lets try to know LCD Interface.

Liquid Crystal Display (LCD) consists of rod-shaped tiny molecules sandwiched between a flat piece of glass and an opaque substrate. These rod-shaped molecules in between the plates align into two different physical positions based on the electric charge applied to them. When electric charge is applied they align to block the light entering through them, where as when no-charge is applied they become transparent.
Light passing through makes the desired images appear. This is the basic concept behind LCD displays.  

LCDs are most commonly used because of their advantages over other display technologies. They are thin and flat and consume very small amount of power compared to LED displays and cathode ray tubes (CRTs).


►Pin Description

The most commonly used LCDs found in the market today are 1 Line, 2 Line or 4 Line LCDs which have only 1 controller and support at most of 80 charachers, whereas LCDs supporting more than 80 characters make use of 2 HD44780 controllers.

Most LCDs with 1 controller has 14 Pins and LCDs with 2 controller has 16 Pins (two pins are extra in both for back-light LED connections). Pin description is shown in the table below.


Figure 1: Character LCD type HD44780 Pin diagram

Pin No.	Name	Description
Pin no. 1	VSS	Power supply (GND)
Pin no. 2	VCC	Power supply (+5V)
Pin no. 3	VEE	Contrast adjust
Pin no. 4	RS	0 = Instruction input 1 = Data input
Pin no. 5	R/W	0 = Write to LCD module 1 = Read from LCD module
Pin no. 6	EN	Enable signal
Pin no. 7	D0	Data bus line 0 (LSB)
Pin no. 8	D1	Data bus line 1
Pin no. 9	D2	Data bus line 2
Pin no. 10	D3	Data bus line 3
Pin no. 11	D4	Data bus line 4
Pin no. 12	D5	Data bus line 5
Pin no. 13	D6	Data bus line 6
Pin no. 14	D7	Data bus line 7 (MSB)

Table 1: Character LCD pins with 1 Controller

Pin No.	Name	Description
Pin no. 1	D7	Data bus line 7 (MSB)
Pin no. 2	D6	Data bus line 6
Pin no. 3	D5	Data bus line 5
Pin no. 4	D4	Data bus line 4
Pin no. 5	D3	Data bus line 3
Pin no. 6	D2	Data bus line 2
Pin no. 7	D1	Data bus line 1
Pin no. 8	D0	Data bus line 0 (LSB)
Pin no. 9	EN1	Enable signal for row 0 and 1 (1stcontroller)
Pin no. 10	R/W	0 = Write to LCD module 1 = Read from LCD module
Pin no. 11	RS	0 = Instruction input 1 = Data input
Pin no. 12	VEE	Contrast adjust
Pin no. 13	VSS	Power supply (GND)
Pin no. 14	VCC	Power supply (+5V)
Pin no. 15	EN2	Enable signal for row 2 and 3 (2ndcontroller)
Pin no. 16	NC	Not Connected

Table 2: Character LCD pins with 2 Controller

Usually these days you will find single controller LCD modules are used more in the market. So in the tutorial we will discuss more about the single controller LCD, the operation and everything else is same for the double controller too. Lets take a look at the basic information which is there in every LCD.

Mainan unik dari Barang Bekas elektronik

Selamat pagi,,,, bertemu lagi di pagi yang indah ini..

Hmm,, pernah ga terfikir untuk memanfaatkan barang bekas elektrronik kita yang sudah tak terpakai di rumah? atau barang elektronik yang dibuang di tempat sampah kita ambil dan kita "protolin" untuk dimanfaatkan dijadikan mainan unik?

ada Hamba Allah yang terinspirasi untuk membuat sebuah mainan unik berbahan elektronik bekas yang sudah tak terpakai, dia rangkai sedemikian rupa sehingga membentuk sebuah pola mainan atau bentuk hewan... yang tentunya aman dimainkan oleh siapa saja....

eitss,, tapi awas,, jangan sampai dimakan atau rubah konstruksinya,, bisa bisa beracun dan hancur tuh mainan.. hehehhe

langsung aja yuk kita liat benda unik ini

Unik kan?? tertarik untuk membuat yang seperti ini?? ayo kumpulkan barang barang bekas yang tak terpakai,, jangan buang sembarangan.... kumpulkan, tuangkan ide,, dan jadikan usaha ANDA!!... GO GREEN!

Sumber : inovatif

Komponen Elektronika - Teori Dasar

Kita ketahui bahwa komponen radio itu banyak macamnya. Dari tabung radio yang besar­-besar sampai dengan IC dan dioda yang kecil-­kecil. Untuk mengenal wajah seluruhnya sudah barang tentu memerlukan waktu lama. Namun dalam tulisan ini akan diperkenalkan beberapa jenis saja yang banyak digunakan dalam praktek sehari­-hari.

Kecuali bentuk dan namanya, kita akan pelajari pula secara garis besar fungsi, sifat-sifatnya dan simbol­-simbol­nya dalam gambar circuit diagram. Disamping itu setiap komponen elektronik mempunyai ukuran kekuatannya, ukuran ini dapat dinyatakan dalam berbagai cara, ialah dengan kode huruf, kode angka dan kode warna.

Contents

* 1 Kode Huruf, kode Angka dan Kode Warna

* 2 Resistor

* 3 Resistor Variable (VR)

* 4 Resistor Peka Suhu dan Resistor Peka Cahaya

* 5 Kapasitor (Kondensator)

* 6 Kapasitor Variable (VARCO)

* 7 Kumparan (Coil)

* 8 Coil Variabel

* 9 Transformator (Trafo)

* 10 Power Trafo

* 11 Trafo Kopel

* 12 Kristal

* 13 Ceramic Filter

* 14 Reley

* 15 Microphone

* 16 Speaker

* 17 Coaxial Cable

* 18 Dioda

* 19 Thyristor, Triac dan Diac

* 20 Transistor

* 21 Uni Junktion Transistor (UJT)

* 22 Field Effect Transistor (FET)

* 23 MOSFET

* 24 Integrated Circuit

* 25 Pranala Menarik