06 binary operations

Date: 05/03/23File: PRO1_07E.1

SIMATIC S7Siemens AG 2004. All rights reserved.

SITRAIN Training for Automation and Drives

Binary Operations

I 0.0 I 0.1 Q 8.0

Q 8.1 I 1.0

I 1.1 P =

&M1.0 M8.0

T4

S_ODT

TV

S Q

BCD

BI

R

I 0.7

I 0.5

S5T#35s

Q8.5

MW0

QW12




Objectives

Upon completion of the chapter the participant will …

... understand the difference between ‘real‘ connected NC contacts and NO contacts, and programmed symbols

... be able to explain the terms Result of Logic Operation (RLO), Status (STAT) and First Check

... be able to program basic binary logic operations




Binary Logic Operations: AND, OR

I 0.2

I 0.3>=1

=Q 8.2 O I 0.2

O I 0.3= Q 8.2

I 0.0 I 0.1 Q 8.0

Q 8.1

LAD

=Q 8.0&I 0.0

I 0.1

=Q 8.1

FBD

A I 0.0A I 0.1= Q 8.0= Q 8.1

STL

I 0.2

I 0.3

Q 8.2

L3 (Q 8.2)

S3(I 0.2)

S4(I 0.3)OR

AND

L1(Q 8.0)

S1 (I 0.0)

S2 (I 0.1)

L2 (Q 8.1)

Circuit Diagram




Binary Logic Operations: Exclusive OR (XOR)

I 0.4

I 0.5XOR

=Q 8.0

I 0.4 I 0.5

I 0.4 I 0.5

Q 8.0

LAD

>=1

=Q 8.0

&I 0.4

I 0.5

&I 0.4

I 0.5

FBD

A I 0.4AN I 0.5OAN I 0.4A I 0.5= Q8.0

STL

X I 0.4X I 0.5= Q8.0




Normally Open and Normally Closed Contacts. Sensors and Symbols

Signalstateat input

Check for signal state “1”

Symbol /Instruction

Result ofcheck

Check for signal state “0”

Symbol /Instruction

Result ofcheck

yes

Voltagepresentat input?

no

yes

no

The sensoris a ...

The sensoris ...

1

0

0

1

“Yes” 1

LAD:

“NO contact”

&

FBD:

A I x.y

STL:

AN I x.y

STL:

&

FBD:

LAD:

“NC contact”

“No” 0

“Yes” 1

“No” 0

“No” 0

“Yes” 1

“Yes” 1

“No” 0

Process Interpretation in the PLC Program

activated

notactivated

activated

notactivated

NOcontact

NCcontact




Exercise 0: NO and NC ContactsTask: In all three examples, the light should be on when S1 is activated and S2 is not activated!

I 1.0 I 1.1 Q 4.0 I 1.0 I 1.1 Q 4.0

....... I 1.0

....... I 1.1

....... Q 4.0

Q 4.0

I 1.0

I 1.1

&

Q 4.0

I 1.0

I 1.1

&

Q 4.0

I 1.0

I 1.1

&

....... I 1.0

....... I 1.1

....... Q 4.0

....... I 1.0

....... I 1.1

....... Q 4.0

Software

E 1.0

S1

E 1.1

S2

E 1.0

S1

E 1.1

S2

E 1.0

S1

E 1.1

S2

Q 4.0Programmable controller

LightLight Light



FBD

STL

LAD

Hardware

I 1.0 I 1.1 Q 4.0

I1.0 I1.0I1.0 I1.1I1.1I1.1




Assignment, Setting, Resetting

(S)Q 8.1I 1.2 I 1.3

I 1.2 &

SQ 8.1

I 1.3

I 1.4 >=1

RQ 8.1

I 1.5

A I 1.2A I 1.3S Q 8.1

O I 1.4O I 1.5R Q 8.1

I 1.0 &

=Q 8.0

I 1.1

A I 1.0A I 1.1= Q 8.0Assignment

Set

Reset(R)

Q 8.1I 1.4

I 1.5

( )Q 8.0I 1.0 I 1.1

LAD FBD STL




Setting / Resetting a Flip Flop

SR

R Q

SI1.2

I1.3

M 5.7

=

Q9.3DominantReset

SRS Q

R

I1.2

I1.3

M 5.7Q 9.3 A I 1.2

S M 5.7A I 1.3R M 5.7A M 5.7= Q 9.3

RS

S Q

RI1.3

I1.2

M 5.7

=

Q9.3

DominantSet

RSR Q

S

I1.3

I1.2

M 5.7Q 9.3 A I 1.3

R M 5.7A I 1.2S M 5.7A M 5.7= Q 9.3

LAD FBD STL




Midline Output Coil

LAD

I 1.0 I 1.1

( )M 20.7 I 2.0 I 2.1

( )Q 4.0

A I 1.0A I 1.1= M 20.7A M 20.7A I 2.0A I 2.1= Q 4.0

STL

I 1.0

I 1.1

&

&

I 2.0

I 2.1

M 20.7

Q 4.0

=

FBD

Date: 05/03/23File: PRO1_07E.10



Instructions that Affect the RLO

=Q 8.0&I 0.0

I 0.1

A I 0.0 A I 0.1NOT = Q 8.0

( ) Q 8.0

NOTI 0.0 I0.1

LAD FBD STL

NOT

STAT 0 – Bit memory

not available not availableCLRCLR = M 0.0

Examples:

not available not availableSET SET = M 0.1

STAT 1 – Bit memory

Date: 05/03/23File: PRO1_07E.11



Exercise 1: Mode Section of the Distribution Conveyor (FC15)

V

0 8 1 5 AI1 AI2 AO1 AO2

AI2AI1

-15V...+15V -15V...+15V

AI1AI2 AO1

AO2

V

DI

I 0.0

I 0.1I 0.2I 0.3I 0.4I 0.5I 0.6I 0.7

DO

.0

.1

.2

.3

.4

.5

.6

.7

AUTO / MANUAL

System_ON

Accept

SystemMANUAL

AUTO

System_OFF

Q 4....

Jog_RIGHT

Jog_LEFT

Weight

Date: 05/03/23File: PRO1_07E.12



Exercise 2: Programming the Conveyor for AUTO Mode (FC16)

Pushbutton Bay 1I 8.1

Prox.Sens.Bay 1I 8.5

Run Conveyor RIGHT

Q8.5

Light BarrierI 8.0

Conv. Start Conv. StopTransport Phase

Pushbutton Bay 2I 8.2

Prox.Sens.Bay 2I 8.6

Date: 05/03/23File: PRO1_07E.13



RLO – Edge Detection

A I 1.0 A I 1.1

FP M1.0= M8.0

A I 1.0A I 1.1FN M1.1= M8.1

PI 1.0 I 1.1 M1.0 M8.0

NI 1.0 I 1.1 M1.1 M8.1

I 1.0

I 1.1 P =

&M1.0 M8.0

I 1.0

I 1.1 N =

&M1.1 M8.1

I 1.0

I 1.1

RLO

M1.0

M8.0M8.1

M1.1

LAD FBD STL

OB1 Cycle

Example

Date: 05/03/23File: PRO1_07E.14



A I 1.0 A (

A I 1.1FP

M1.0)=

M8.0A I 1.0A (A I 1.1FN

M1.1)=

M8.1

Example

Signal – Edge Detection

I 1.0

I 1.1

M1.0

M8.0

M8.1

M1.1OB1 Cycle

STL

I 1.1

=M8.0POS

M_BITM1.0

&I 1.0

I 1.1

=M8.1NEG

M_BITM1.1

&I 1.0

FBDLAD

I 1.1M8.0

POS

M_BITM1.0

Q

I 1.0

I 1.1M8.1

NEG

M_BITM1.1

Q

I 1.0

Date: 05/03/23File: PRO1_07E.15



Exercise 3: Edge Detection

Run Conveyor RIGHT(Q8.5)

Light Barrier(I 8.0)

Conv. Start Conv. StopTransport Phase

Start conditionin AUTO mode

Part at Light barrier

Date: 05/03/23File: PRO1_07E.16



Exercise 4: Optimizing the Mode Section FC 15

T_System_ON(I 0.0)

T_System_OFF(I 0.1, NC contact)

L_System_ON(Q4.1)

OLD: without edge detection

T_System_ON(I 0.0)

T_System_OFF(I 0.1, NC contact)

L_System_ON(Q4.1)

NEW: with edge detection

Date: 05/03/23File: PRO1_07E.17



If You Want to Know More

Date: 05/03/23File: PRO1_07E.18



Unconditional Jump (Regardless of the RLO)

( JMP )NEW1

Network 1

Network 2::::Network x

NEW1

( )M69.0I 4.7M5.5

LAD

NEW1JMP....

NEW1

&M5.5I 4.7 =

M69.0

Network 1


FBD

Network 1

JU NEW1


NEW1: AN M5.5 AN I 4.7

= M69.0

STL

Date: 05/03/23File: PRO1_07E.19



Conditional Jump (Dependent on RLO)

A I 0.0A I 0.1JC NEW1

A I 0.2A I 0.3JCN NEW2

Jump ifRLO=1

Jump ifRLO=0

NEW2I 0.2 I 0.3

(JMPN)

NEW1I 0.0 I 0.1

(JMP)&I 0.0

I 0.1 JMPNEW1

JMPN

I 0.2

I 0.3NEW2

&

LAD FBD STL

Automotive

06 binary operations