Sunday, April 10, 2011

Lock Unlock Door Using Keyence PLC




PLC Type KV, Name Input / Output PLC :

INPUT PLC :
0000 ; Numeric 0 from KeyPad
0001 ; Numeric 1 from KeyPad
0002 ; Numeric 2 from KeyPad
0003 ; Numeric 3 from KeyPad
0004 ; Numeric 4 from KeyPad
0005 ; Numeric 5 from KeyPad
0006 ; Numeric 6 from KeyPad
0007 ; Numeric 7 from KeyPad
0008 ; Numeric 8 from KeyPad
0009 ; Numeric 9 from KeyPad
0010 ; ENTER Key from KeyPad
0011 ; Door closure Sensor
0012 ; Door Exit Button

OUTPUT PLC :
0500 ; Output to Relay Coil (Used for Electromagetic Lock and Green LED)


Download PDF File:
Lock Unlock Door Using Keyence PLC(.pdf)


Reading Ladder PLC Programming for Lock Unlock Door using Keyence PLC :

Step 1 :
Password Data using DM0020
a.If 2002 = ON (Always ON) Then DM0020 = 5214 (can be modified and 4 Digits Decimal)

Step 2 :
Numeric 0 to 9 is pressed
Using DM0000 for temporary data storage
a.If 0000 = ON (Numeric 0) Then DIFU 1000 = ON AND DM0000 = 0
b.If 0001 = ON (Numeric 1) Then DIFU 1000 = ON AND DM0000 = 1
c.If 0002 = ON (Numeric 2) Then DIFU 1000 = ON AND DM0000 = 2
d.If 0003 = ON (Numeric 3) Then DIFU 1000 = ON AND DM0000 = 3
e.If 0004 = ON (Numeric 4) Then DIFU 1000 = ON AND DM0000 = 4
f.If 0005 = ON (Numeric 5) Then DIFU 1000 = ON AND DM0000 = 5
g.If 0006 = ON (Numeric 6) Then DIFU 1000 = ON AND DM0000 = 6
h.If 0007 = ON (Numeric 7) Then DIFU 1000 = ON AND DM0000 = 7
i.If 0008 = ON (Numeric 8) Then DIFU 1000 = ON AND DM0000 = 8
j.If 0009 = ON (Numeric 9) Then DIFU 1000 = ON AND DM0000 = 9
Note : DIFU = Single-scan of target relay ON at rising edge of previous state

Step 3 :
Count the number keypad is pressed
Using DM0030 for Count data storage
a.If 1000 = ON Then INC DM0030 (Increment target device value)

Step 4 :
Enter Released for Value DM0030 = 0 (Count data RESET)
a.If 0010 = ON (ENTER key is pressed) Then DIFD 1001 = ON (Single-scan of target relay ON at falling edge of previous state)
b.If 1001 = ON Then Value DM0030 = 0

Step 5 :
Password from the KeyPad
Using DM0012 for Password from the KeyPad
a.Keypad is pressed first, multiplied by 1000
(1000 = ON) -> (LDA DM0030) -> (CMP#0001) -> (2010) -> (LDA DM0000) -> (MUL #01000) -> (STA DM0001)
b.Keypad is pressed second, multiplied by 100
(1000 = ON) -> (LDA DM0030) -> (CMP#0002) -> (2010) -> (LDA DM0000) -> (MUL #00100) -> (STA DM0002)
c.Keypad is pressed three, multiplied by 10
(1000 = ON) -> (LDA DM0030) -> (CMP#0003) -> (2010) -> (LDA DM0000) -> (MUL #00010) -> (STA DM0003)
d.Keypad is pressed four, multiplied by 1
(1000 = ON) -> (LDA DM0030) -> (CMP#0004) -> (2010) -> (LDA DM0000) -> (MUL #00001) -> (STA DM0004)
e.Sum all the data
(1000 = ON) -> (LDA DM0001) -> (ADD DM0002) -> (STA DM0010)
(1000 = ON) -> (LDA DM0010) -> (ADD DM0003) -> (STA DM0011)
(1000 = ON) -> (LDA DM0011) -> (ADD DM0004) -> (STA DM0012)

Example :
Keypad is pressed :
first : Numeric 5 pressed -> 5 multiplied by 1000 = 5000
second : Numeric 2 pressed -> 2 multiplied by 100 = 200
three : Numeric 1 pressed -> 1 multiplied by 10 = 10
four : Numeric 4 pressed -> 4 multiplied by 1 = 4
Sum all the data : 5000 + 200 + 10 + 4 = 5214
So,Password from the keypad is 5214

Step 6 :
Check the number of digits
a.If DM0030 = 4 (4 times the keypad is pressed) Then 1002 = ON

Step 7 :
Correct Password And UnLock Door
7.1. Correct Password
a.If 0010 = ON (ENTER key is pressed) Then DIFU 1004 = ON (ENTER Down)
b.If 1004 = ON (ENTER Down) AND 1002 = ON AND Value(DM0012 = DM0020) Then SET 1003 = ON
7.2. UnLock Door by Correct Password
c.If 1003 = ON AND 1007 = OFF AND T000 = OFF Then 1006 = ON (Hold UnLock)
7.3. UnLock Door by Door Exit Button
d.If 0012 = ON (Door Exit Button) AND 1007 = OFF AND T000 = OFF Then 1006 = ON (Hold UnLock)
7.3. UnLock Door
e.If 1006 = ON Then 0500 = ON (UnLock Door)

Step 8 :
Lock Door by Door position
a.If 0011 = ON (Door Closure Sensor) Then DIFU 1007 = ON
b.If 1007 = ON Then 1006 = OFF
c.If 1006 = OFF Then 0500 = OFF (Lock Door)

Step 9 :
Lock Door by Timer
a.If 0500 = ON AND 0011 = ON (Door Closure Sensor) Then Activate the Timer T000
b.If T000 = ON Then 1006 = OFF
c.If 1006 = OFF Then 0500 = OFF (Lock Door)

Step 10 :
a.If 1000 = ON AND 1003 = ON (Correct Password) Then RES 1003 (1003 = OFF)
b.If 1007 = ON AND 1003 = ON (Correct Password) Then RES 1003 (1003 = OFF)
c.If T000 = ON AND 1003 = ON (Correct Password) Then RES 1003 (1003 = OFF)

Please Download Programming for KV Builder :
Lock Unlock Door Using Keyence PLC

See : Lock Unlock Door


Labels:


Newer Post Older Post Home

You may also like these ebook:

Get Free PLC eBook directly sent to your email,
and email subscription to program-plc.blogspot.com




We hate SPAM. Your information is never sold or shared with anyone.

Your Email Will Be 100% Secured !