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Siemens S7-200 PLC Quick Reference

 

S7-200 Quick Reference Information

To help you find information more easily, this section summarizes the following information:

Special Memory Bits

Descriptions of Interrupt Events

Summary of S7-200 CPU Memory Ranges and Features

High-Speed Counters HSC0, HSC1, HSC2, HSC3, HSC4, HSC5

S7-200 Instructions

Table G-1 Special Memory Bits

Special Memory Bits

SM0.0

Always On

SM1.0

Result of operation = 0

SM0.1

First Scan

SM1.1

Overflow or illegal value

SM0.2

Retentive data lost

SM1.2

Negative result

SM0.3

Power up

SM1.3

Division by 0

SM0.4

30 s off / 30 s on

SM1.4

Table full

SM0.5

0.5 s off / 0.5 s on

SM1.5

Table empty

SM0.6

Off 1 scan / on 1 scan

SM1.6

BCD to binary conversion error

SM0.7

Switch in RUN position

SM1.7

ASCII to hex conversion error

Table G-2 Interrupt Events in Priority Order

Event Number

Interrupt Description

Priority Group

Priority in Group

8

Port 0: Receive character

Communications

(highest)

0

9

Port 0: Transmit complete

0

23

Port 0: Receive message complete

0

24

Port 1: Receive message complete

1

25

Port 1: Receive character

1

26

Port 1: Transmit complete

1

19

PTO 0 complete interrupt

Discrete (middle)

0

20

PTO 1 complete interrupt

1

0

I0.0, Rising edge

2

2

I0.1, Rising edge

3

4

I0.2, Rising edge

4

6

I0.3, Rising edge

5

1

I0.0, Falling edge

6

3

I0.1, Falling edge

7

5

I0.2, Falling edge

8

7

I0.3, Falling edge

9

12

HSC0 CV=PV (current value = preset value)

10

27

HSC0 direction changed

11

28

HSC0 external reset

12

13

HSC1 CV=PV (current value = preset value)

13

14

HSC1 direction input changed

14

15

HSC1 external reset

15

16

HSC2 CV=PV

16

17

HSC2 direction changed

17

18

HSC2 external reset

18

32

HSC3 CV=PV (current value = preset value)

19

29

HSC4 CV=PV (current value = preset value)

20

30

HSC4 direction changed

21

31

HSC4 external reset

22

33

HSC5 CV=PV (current value = preset value)

23

10

Timed interrupt 0

Timed (lowest)

0

11

Timed interrupt 1

1

21

Timer T32 CT=PT interrupt

2

22

Timer T96 CT=PT interrupt

3

clip_image129Table G-3 Summary of S7-200 CPU Memory Ranges and Features

Description

CPU 221

CPU 222

CPU 224

CPU 226

CPU 226XM

User program size

2 Kwords

2 Kwords

4 Kwords

4 Kwords

8 Kwords

User data size

1 Kwords

1 Kwords

2.5 Kwords

2.5 Kwords

5 Kwords

Process-image input register

I0.0 to I15.7

I0.0 to I15.7

I0.0 to I15.7

I0.0 to I15.7

I0.0 to I15.7

Process-image output register

Q0.0 to Q15.7

Q0.0 to Q15.7

Q0.0 to Q15.7

Q0.0 to Q15.7

Q0.0 to Q15.7

Analog inputs (read only)

-- --

AIW0 to AIW30

AIW0 to AIW62

AIW0 to AIW62

AIW0 to AIW62

Analog outputs (write only)

-- --

AQW0 to AQW30

AQW0 to AQW62

AQW0 to AQW62

AQW0 to AQW62

Variable memory (V)

VB0 to VB2047

VB0 to VB2047

VB0 to VB5119

VB0 to VB5119

VB0 to VB10239

Local memory (L)1

LB0 to LB63

LB0 to LB63

LB0 to LB63

LB0 to LB63

LB0 to LB63

Bit memory (M)

M0.0 to M31.7

M0.0 to M31.7

M0.0 to M31.7

M0.0 to M31.7

M0.0 to M31.7

Special Memory (SM) Read only

SM0.0 to SM179.7

SM0.0 to SM29.7

SM0.0 to SM299.7

SM0.0 to SM29.7

SM0.0 to SM549.7

SM0.0 to SM29.7

SM0.0 to SM549.7

SM0.0 to SM29.7

SM0.0 to SM549.7

SM0.0 to SM29.7

Timers

Retentive on-delay 1 ms

10 ms

100 ms

On/Off delay 1 ms

10 ms

100 ms

256 (T0 to T255) T0, T64

T1 to T4, and

T65 to T68

T5 to T31, and

T69 to T95

T32, T96

T33 to T36, and

T97 to T100

T37 to T63, and

T101 to T255

256 (T0 to T255) T0, T64

T1 to T4, and

T65 to T68

T5 to T31, and

T69 to T95

T32, T96

T33 to T36, and

T97 to T100

T37 to T63, and

T101 to T255

256 (T0 to T255) T0, T64

T1 to T4, and

T65 to T68

T5 to T31, and

T69 to T95

T32, T96

T33 to T36, and

T97 to T100

T37 to T63, and

T101 to T255

256 (T0 to T255) T0, T64

T1 to T4, and

T65 to T68

T5 to T31, and

T69 to T95

T32, T96

T33 to T36, and

T97 to T100

T37 to T63, and

T101 to T255

256 (T0 to T255) T0, T64

T1 to T4, and

T65 to T68

T5 to T31, and

T69 to T95

T32, T96

T33 to T36, and

T97 to T100

T37 to T63, and

T101 to T255

Counters

C0 to C255

C0 to C255

C0 to C255

C0 to C255

C0 to C255

High-speed counter

HC0, HC3, HC4, and HC5

HC0, HC3, HC4, and HC5

HC0 to HC5

HC0 to HC5

HC0 to HC5

Sequential control relays (S)

S0.0 to S31.7

S0.0 to S31.7

S0.0 to S31.7

S0.0 to S31.7

S0.0 to S31.7

Accumulator registers

AC0 to AC3

AC0 to AC3

AC0 to AC3

AC0 to AC3

AC0 to AC3

Jumps/Labels

0 to 255

0 to 255

0 to 255

0 to 255

0 to 255

Call/Subroutine

0 to 63

0 to 63

0 to 63

0 to 63

0 to 127

Interrupt routines

0 to 127

0 to 127

0 to 127

0 to 127

0 to 127

Positive/negative transitions

256

256

256

256

256

PID loops

0 to 7

0 to 7

0 to 7

0 to 7

0 to 7

Ports

Port 0

Port 0

Port 0

Port 0, Port 1

Port 0, Port 1

1 LB60 to LB63 are reserved by STEP 7-- Micro/WIN, version 3.0 or later.

Table G-4 High-Speed Counters HSC0, HSC3, HSC4, and HSC5

HSC0

HSC3

HSC4

HSC5

I0.0

I0.1

I0.2

I0.1

I0.3

I0.4

I0.5

I0.4

0

Clk

Clk

Clk

Clk

1

Clk

Reset

Clk

Reset

2

3

Clk

Direction

Clk

Direction

4

Clk

Direction

Reset

Clk

Direction

Reset

5

6

Clk Up

Clk Down

Clk Up

Clk Down

7

Clk Up

Clk Down

Reset

Clk Up

Clk Down

Reset

8

9

Phase A

Phase B

Phase A

Phase B

10

Phase A

Phase B

Reset

Phase A

Phase B

Reset

11

Mode

Table G-5 High-Speed Counters HSC1 and HSC2

HSC1

HSC2

I0.6

I0.7

I1.0

I1.1

I1.2

I1.3

I1.4

I1.5

0

Clk

Clk

1

Clk

Reset

Clk

Reset

2

Clk

Reset

Start

Clk

Reset

Start

3

Clk

Direction

Clk

Direction

4

Clk

Direction

Reset

Clk

Direction

Reset

5

Clk

Direction

Reset

Start

Clk

Direction

Reset

Start

6

Clk Up

Clk Down

Clk Up

Clk Down

7

Clk Up

Clk Down

Reset

Clk Up

Clk Down

Reset

8

Clk Up

Clk Down

Reset

Start

Clk Up

Clk Down

Reset

Start

9

Phase A

Phase B

Phase A

Phase B

10

Phase A

Phase B

Reset

Phase A

Phase B

Reset

11

Phase A

Phase B

Reset

Start

Phase A

Phase B

Reset

Start

Mode

Math, Increment, and Decrement instructions

+I IN1, OUT

+D IN1, OUT

+R IN1, OUT

Add Integer, Double Integer or Real

IN1+OUT=OUT

--I IN1, OUT

--D IN1, OUT

--R IN1, OUT

Subtract Integer, Double Integer, or

Real

OUT--IN1=OUT

MUL IN1, OUT

Multiply Integer (16*16-->32)

*I IN1, OUT

*D IN1, OUT

*R IN1, IN2

Multiply Integer, Double Integer, or

Real

IN1 * OUT = OUT

DIV IN1, OUT

Divide Integer (16/16-->32)

/I IN1, OUT

/D, IN1, OUT

/R IN1, OUT

Divide Integer, Double Integer, or Real

OUT / IN1 = OUT

SQRT IN, OUT

Square Root

LN IN, OUT

Natural Logarithm

EXP IN, OUT

Natural Exponential

SIN IN, OUT

Sine

COS IN, OUT

Cosine

TAN IN, OUT

Tangent

INCB OUT INCW OUT INCD OUT

Increment Byte, Word or DWord

DECB OUT DECW OUT DECD OUT

Decrement Byte, Word, or DWord

PID TBL, LOOP

PID Loop

Timer and Counter Instructions

TON Txxx, PT TOF Txxx, PT TONR Txxx, PT

On-Delay Timer

Off-Delay Timer

Retentive On-Delay Timer

CTU Cxxx, PV CTD Cxxx, PV CTUD Cxxx, PV

Count Up Count Down Count Up/Down

Real Time Clock Instructions

TODR T TODW T

Read Time of Day clock

Write Time of Day clock

Program Control Instructions

END

Conditional End of Program

STOP

Transition to STOP Mode

WDR

WatchDog Reset (300 ms)

JMP N LBL N

Jump to defined Label

Define a Label to Jump to

CALL N [N1,...]

CRET

Call a Subroutine [N1, ... up to 16 optional parameters]

Conditional Return from SBR

FOR INDX,INIT,FINAL NEXT

For/Next Loop

LSCR N SCRT N CSCRE SCRE

Load, Transition, Conditional End, and

End Sequence Control Relay

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Boolean Instructions

LD Bit LDI Bit LDN Bit LDNI Bit

Load

Load Immediate

Load Not

Load Not Immediate

A Bit AI Bit AN Bit ANI Bit

AND

AND Immediate

AND Not

AND Not Immediate

O Bit OI Bit ON Bit ONI Bit

OR

OR Immediate

OR Not

OR Not Immediate

LDBx IN1, IN2

Load result of Byte Compare

IN1 (x:<, <=,=, >=, >, <>I) IN2

ABx IN1, IN2

AND result of Byte Compare

IN1 (x:<, <=,=, >=, >, <>) IN2

OBx IN1, IN2

OR result of Byte Compare

IN1 (x:<, <=,=, >=, >, <>) IN2

LDWx IN1, IN2

Load result of Word Compare

IN1 (x:<, <=,=, >=, >, <>) IN2

AWx IN1, IN2

AND result of Word Compare

IN1 (x:<, <=,=, >=, >, <>)I N2

OWx IN1, IN2

OR result of Word Compare

IN1 (x:<, <=,=, >=, >, <>) IN2

LDDx IN1, IN2

Load result of DWord Compare

IN1 (x:<, <=,=, >=, >, <>) IN2

ADx IN1, IN2

AND result of DWord Compare

IN1 (x:<, <=,=, >=, >, <>)IN2

ODx IN1, IN2

OR result of DWord Compare

IN1 (x:<, <=,=, >=, >, <>) IN2

LDRx IN1, IN2

Load result of Real Compare

IN1 (x:<, <=,=, >=, >, <>) IN2

ARx IN1, IN2

AND result of Real Compare

IN1 (x:<, <=,=, >=, >, <>) IN2

ORx IN1, IN2

OR result of Real Compare

IN1 (x:<, <=,=, >=, >, <>) IN2

NOT

Stack Negation

EU ED

Detection of Rising Edge

Detection of Falling Edge

= Bit

=I Bit

Assign Value

Assign Value Immediate

S Bit, N R Bit, N SI Bit, N RI Bit, N

Set bit Range

Reset bit Range

Set bit Range Immediate

Reset bit Range Immediate

LDSx IN1, IN2

ASx IN1, IN2

OSx IN1, IN2

Load result of String Compare

IN1 (x: =, <>) IN2

AND result of String Compare

IN1 (x: =, <>) IN2

OR result of String Compare

IN1 (x: =, <>) IN2

ALD OLD

And Load

Or Load

LPS LRD LPP

LDS N

Logic Push (stack control) Logic Read (stack control) Logic Pop (stack control) Load Stack (stack control)

AENO

And ENO

Table, Find, and Conversion Instructions

ATT DATA, TBL

Add data to table

LIFO TBL, DATA FIFO TBL, DATA

Get data from table

FND= TBL, PTN, INDX FND<> TBL, PTN, INDX FND< TBL, PTN, INDX FND> TBL, PTN, INDX

Find data value in table that matches comparison

FILL IN, OUT, N

Fill memory space with pattern

BCDI OUT IBCD OUT

Convert BCD to Integer

Convert Integer to BCD

BTI IN, OUT ITB IN, OUT ITD IN, OUT DTI IN, OUT

Convert Byte to Integer

Convert Integer to Byte

Convert Integer to Double Integer

Convert Double Integer to Integer

DTR IN, OUT TRUNC IN, OUT ROUND IN, OUT

Convert DWord to Real

Convert Real to Double Integer

Convert Real to Double Integer

ATH IN, OUT, LEN HTA IN, OUT, LEN ITA IN, OUT, FMT DTA IN, OUT, FM RTA IN, OUT, FM

Convert ASCII to Hex Convert Hex to ASCII Convert Integer to ASCII

Convert Double Integer to ASCII Convert Real to ASCII

DECO IN, OUT ENCO IN, OUT

Decode

Encode

SEG IN, OUT

Generate 7--segment pattern

ITS IN, FMT, OUT DTS IN, FMT, OUT RTS IN, FMT, OUT

Convert Integer to String

Convert Double Integer to String

Convert Real to String

STI STR, INDX, OUT STD STR, INDX, OUT STR STR, INDX, OUT

Convert Substring to Integer

Convert Substring to Double Integer

Convert Substring to Real

Interrupt Instructions

CRETI

Conditional Return from Interrupt

ENI DISI

Enable Interrupts

Disable Interrupts

ATCH INT, EVNT DTCH EVNT

Attach Interrupt routine to event

Detach event

Communications Instructions

XMT TBL, PORT RCV TBL, PORT

Freeport transmission

Freeport receive message

NETR TBL, PORT NETW TBL, PORT

Network Read

Network Write

GPA ADDR, PORT SPA ADDR, PORT

Get Port Address

Set Port Address

High-Speed Instructions

HDEF HSC, MODE

Define High-Speed Counter mode

HSC N

Activate High-Speed Counter

PLS Q

Pulse Output

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Move, Shift, and Rotate Instructions

MOVB IN, OUT MOVW IN, OUT MOVD IN, OUT MOVR IN, OUT

Move Byte, Word, DWord, Real

BIR IN, OUT BIW IN, OUT

Move Byte Immediate Read

Move Byte Immediate Write

BMB IN, OUT, N BMW IN, OUT, N BMD IN, OUT, N

Block Move Byte, Word, DWord

SWAP IN

Swap Bytes

SHRB DATA, S_BIT, N

Shift Register Bit

SRB OUT, N SRW OUT, N SRD OUT, N

Shift Right Byte, Word, DWord

SLB OUT, N SLW OUT, N SLD OUT, N

Shift Left Byte, Word, DWord

RRB OUT, N RRW OUT, N RRD OUT, N

Rotate Right Byte, Word, DWord

RLB OUT, N RLW OUT, N RLD OUT, N

Rotate Left Byte, Word, DWord

Logical Instructions

ANDB IN1, OUT ANDW IN1, OUT ANDD IN1, OUT

Logical AND of Byte, Word, and

DWord

ORB IN1, OUT ORW IN1, OUT ORD IN1, OUT

Logical OR of Byte, Word, and DWord

XORB IN1, OUT XORW IN1, OUT XORD IN1, OUT

Logical XOR of Byte, Word, and

DWord

INVB OUT INVW OUT INVD OUT

Invert Byte, Word and DWord

(1’s complement)

String Instructions

SLEN IN, OUT SCAT IN, OUT SCPY IN, OUT

SSCPY IN, INDX, N, OUT CFND IN1, IN2, OUT SFND IN1, IN2, OUT

String Length Concatenate String Copy String

Copy Substring from String

Find First Character within String

Find String within String