Belajar PLC: SIEMENS

The S7-224 PLC:

1- Output connection terminal.

2- PLC supply terminal

3- Input connection terminal

4- DB9 socket for RS485 series port

5- 24VDC 280mA current supplyoutput

6- Input status LED

7- Output status LED

8- PLC status LED

9- Mode switch

10- Programme cartridge receptacle

11- Input/Output expansion connector

EM221 input expansion module:

1- Input connection terminal

2- Input status LEDs

3- Connector for further expansions

EM222 output expansion module:

1- Output connection terminal

2- Output status LED

3- Connector for further expansions

4- Module supply terminal

Alamat dan tipe data

IEC	SIMATIC	Description	Data Type	Address Range
I	E	Input bit	BOOL	0.0 to 65535.7
IB	EB	Input byte	BYTE, CHAR	0 to 65535
IW	EW	Input word	WORD, INT, S5TIME, DATE	0 to 65534
ID	ED	Input double word	DWORD, DINT, REAL, TOD, TIME	0 to 65532
Q	A	Output bit	BOOL	0.0 to 65535.7
QB	AB	Output byte	BYTE, CHAR	0 to 65535
QW	AW	Output word	WORD, INT, S5TIME, DATE	0 to 65534
QD	AD	Output double word	DWORD, DINT, REAL, TOD, TIME	0 to 65532
M	M	Memory bit	BOOL	0.0 to 65535.7
MB	MB	Memory byte	BYTE, CHAR	0 to 65535
MW	MW	Memory word	WORD, INT, S5TIME, DATE	0 to 65534
MD	MD	Memory double word	DWORD, DINT, REAL, TOD, TIME	0 to 65532
PIB	PEB	Peripheral input byte	BYTE, CHAR	0 to 65535
PQB	PAB	Peripheral output byte	BYTE, CHAR	0 to 65535
PIW	PEW	Peripheral input word	WORD, INT, S5TIME, DATE	0 to 65534
PQW	PAW	Peripheral output word	WORD, INT, S5TIME, DATE	0 to 65534
PID	PED	Peripheral input double word	DWORD, DINT, REAL, TOD, TIME	0 to 65532
PQD	PAD	Peripheral output double word	DWORD, DINT, REAL, TOD, TIME	0 to 65532
T	T	Timer	TIMER	0 to 65535
C	Z	Counter	COUNTER	0 to 65535
FB	FB	Function block	FB	0 to 65535
OB	OB	Organization block	OB	1 to 65535
DB	DB	Data block	DB, FB, SFB, UDT	1 to 65535
FC	FC	Function	FC	0 to 65535
SFB	SFB	System function block	SFB	0 to 65535
SFC	SFC	System function	SFC	0 to 65535
VAT	VAT	Variable table		0 to 65535
UDT	UDT	User-defined data type	UDT	0 to 65535

PEMILIHAN BAHASA PEMROGRAMAN

Ladder Logic Programming Language (LAD)

Ladder Logic Programming Language (LAD) merupakan gambaran sirkuit diagram. Elemennya terdiri dari kontak kontak NO/NC dan instruksi eksekusi.

contoh.

Function Block Diagram Programming Language (FBD)

Function Block Diagram Programming Language (FBD) merupakan rangkaian yang berdasarkan simbol logika yang diketahui dengan aljabar boolean.

contoh.

Statement List Programming Language (STL)

Statement List Programming Language (STL) merupakan pemrograman dengan struktur bahasa mesin. Tiap statement menggambarkan proses operasi.

contoh.

SCL Programming Language

SCL Programming Language merupakan bahasa tingkat tinggi yang terdefinisi secara global. berstandar IEC 1131-3.

contoh.

FUNCTION_BLOCK FB20

VAR_INPUT

ENDVAL: INT;

END_VAR

VAR_IN_OUT

IQ1 : REAL;

END_VAR

VAR

INDEX: INT;

END_VAR

BEGIN

CONTROL:=FALSE;

FOR INDEX:= 1 TO ENDVALUE DO

IQ1:= IQ1 * 2;

IF IQ1 >10000 THEN

CONTROL = TRUE

END_IF

END_FOR;

END_FUNCTION_BLOCK .

S7-GRAPH Programming Language (Sequential Control)

S7-GRAPH Programming Language (Sequential Control) merupakan program yang termasuk penciptaan sequencer dan spesifikasi yang sesuai isi dan transisi,yang menampilkan urutan yang sangat jelas dari program.

contoh.