timer trigger in s7300

mostafah · Jul 1, 2008

hello everybody

i need a timer to start when an output rises to 1.
so i wrote this simple lines:

A Q 8.1
L S5T#5S
SP T 2

but i see that it starts only first time and after the first time, never starts!!!!!!!!!!!!

has any body an idea to help me?

Mostafa
Havaeji

jvdcande · Jul 1, 2008

Mostafa,

your code looks OK to me, but you don't state where it is programmed. I think you have probably used T2 in another spot in your program or you're using this code in a block which isn't called every program cycle. These are the only reasons I can think of why this code wouldn't work everytime.

Kind regards,

mostafah · Jul 1, 2008

jvdcande said:
Mostafa,

your code looks OK to me, but you don't state where it is programmed. I think you have probably used T2 in another spot in your program or you're using this code in a block which isn't called every program cycle. These are the only reasons I can think of why this code wouldn't work everytime.

Kind regards,

Dear Jean
you are right, it's block is not called every cycle.
I hope it solve my problem.thank you,will tell you the result.

Mostafa
Havaeji

mostafah · Jul 2, 2008

Dear jean
i wrote this code:

A Q 8.1
L S5T#5S
SP T 2

for each timer in one block that is alled each cycle.
Half of timers work properly, but those that are triggered by falling edge of outputs, like this:

AN Q 8.1
L S5T#5S
SP T 7

have the last problem.(works only once!!!!!!!!!!!!!!)
can you solve it again?

Mostafa
Havaeji

mohamedzobaa · Jul 3, 2008

please try these lines
a q8.1
fp m0.0
l s5t#2s
se t0
.
.
.
.
a t0
=q8.2

mostafah · Jul 5, 2008

Hello mohamedzoba

thank you for your help.
but the problem did not solve.
have you any other idea?

Mostafa
Havaeji

mohamedzobaa · Jul 6, 2008

Dear Mostafa
I've write the following program and test it on simulator

A I0.0
FP M0.0
L S5T#2S
SE T0
A T0
=Q8.2

The output q8.2 goes on for 2s with positive edge of I0.0
Am I understand right?
or you need another idea!

manmeetvirdi · Jul 6, 2008

Hi
Try incorporating falling edge of output like this:
A Q 0.0
FN M 150.0
S M 150.1

A M 150.1
L S5T#3S
SP T 5

A T 5
FN M 150.2
R M 150.1

Just a tip...

Madman · Jul 6, 2008

jvdcande said:
Mostafa,

your code looks OK to me, but you don't state where it is programmed. I think you have probably used T2 in another spot in your program or you're using this code in a block which isn't called every program cycle. These are the only reasons I can think of why this code wouldn't work everytime.

Kind regards,

Are you sure what you call each timer only once. Try to recheck your program.

mostafah · Jul 7, 2008

dear mohamedzoba

when i trigger a timer with an input like i 0.1, it works well.
but i want to trigger my timer with AN OUTPUT. In this case, when the output is falling, it works only once!!!!!!!
if you have time, please write this code and test by simulator:
AN Q 8.1
L S5T#5S
SP T 7
if you find the problem,and then its solution, please tell me.

Mostafa
Havaeji

jvdcande · Jul 8, 2008

Mostafah,

with only snippets of code it's very hard to do troubleshooting. Please post the entire program and I'm sure we'll find the problem.

Kind regards,

mohamedzobaa · Jul 8, 2008

i wrote the following statments on package and test it with simulator

an q8.0

l s5t#5s

sp t0

mostafah · Jul 8, 2008

mohamedzoba said:
i wrote the following statments on package and test it with simulator

an q8.0

l s5t#5s

sp t0

ok!
how you change the status of q 8.0 and then trigger the timer?
if you reset q 8.0 according to result of a comparison, you see my problem. if you want, i can send my whole program.

mohamedzobaa · Jul 9, 2008

Yes Please send the whole program to check

mostafah · Jul 12, 2008

hi again dear mohamedzoba

since your email addres is restricted i paste the blocks here.

please note this explanation:

I calculate a value(a power) and if it is more than a predefined value,i set some output subsequently and in order from q 8.1 to q 8.5.

if it is less than a predefined value, i reset them from q 8.5 to q 8.1.each set or reset must be done after 5 second from previous set or reset. functions 21 to 24 are like 20 and are not here. functions 31 to 34 are like 35 and are not here.

thank you in advance.

OB1 - <offline>

Block: OB1 "Main Program Sweep (Cycle)"

Network: 1

CALL "ANALOGS"

Network: 2

A I 0.7

S Q 8.0

L S5T#10S

SP "T1"

Network: 3

CALL "timers"

Network: 4

CALL "RESIDUE"

Network: 5

CALL FC 20

Page 2 of 2

Network: 6

CALL FC 21

Network: 7

CALL FC 22

Network: 8

CALL FC 23

Network: 9

CALL FC 24

Network: 10

CALL FC 30

Network: 11

CALL FC 31

Network: 12

CALL FC 32

Network: 13

CALL FC 33

Network: 14

CALL FC 34

FC1 - <offline>

"ANALOGS" ANALOG PROCESSING

Network: 1

L PIW 320

ITD

DTR

L 3.616898e-003

*R

L 0.000000e+000

+R

T MD 100

Network: 2

L PIW 322

ITD

DTR

L 3.616898e-003

*R

L 0.000000e+000

+R

T MD 104

Network: 3

L PIW 324

ITD

DTR

L 3.616898e-003

*R

L 0.000000e+000

+R

T MD 108

Network: 4

L PIW 326

ITD

DTR

L 3.616898e-003

*R

L 0.000000e+000

+R

T MD 112

SIMATIC ATS9\SIMATIC 300(1)\CPU 315\...\FC1 - <offline> 07/12/2008 09:09:58 AM

Page 2 of 2

Network: 5

L PIW 328

ITD

DTR

L 3.616898e-003

*R

L 0.000000e+000

+R

T MD 116

Network: 6

L PIW 330

ITD

DTR

L 3.616898e-003

*R

L 0.000000e+000

+R

T MD 120

SIMATIC ATS9\SIMATIC 300(1)\CPU 315\...\FC10 - <offline> 07/12/2008 09:10:16 AM

Page 1 of 1

FC10 - <offline>

"comparison"

NP Real 0.0 nominal power

RP Real 4.0 residue power

OUT 0.0

C Bool 8.0 consumer

Block: FC10

Network: 1

L #RP //RESIDUE POWER

L #NP //NOMINAL POWER

>R

= #C

SIMATIC ATS9\SIMATIC 300(1)\CPU 315\...\FC11 - <offline> 07/12/2008 09:10:40 AM

Page 1 of 1

FC11 - <offline>

"timers"

Data Type Address Comment

Network: 1

O "T1"

O "T2"

O "T3"

O "T4"

O "T5"

O "T6"

O "T7"

O "T8"

O "T9"

O "T10"

O "T11"

= M 0.1

SIMATIC ATS9\SIMATIC 300(1)\CPU 315\...\FC12 - <offline> 07/12/2008 09:10:55 AM

Page 1 of 1

FC12 - <offline>

"RESIDUE"

Name Data Type Address Comment

L MD 90 // MAX ALLOABLE POWER USE

L MD 100 // EM. USERS CONSUMPTION

-R

L MD 104 // COMPRESSOR1 CONSUMPTION

-R

L MD 108 // COMPRESSOR2 CONSUMPTION

-R

L MD 112 // PUMP1 CONSUMPTION

-R

L MD 116 // PUMP2 CONSUMPTION

-R

L MD 120 // ADDITIONAL LIGHTING CONSUMPTION

-R

T MD 124 // RESIDUE POWER

SIMATIC ATS9\SIMATIC 300(1)\CPU 315\...\FC20 - <offline> 07/12/2008 09:11:09 AM

Page 1 of 1

FC20 - <offline>

Name Data Type Address Comment

Block: FC20

Network: 1

A I 0.7

AN M 0.1

JCN a

L MD 124

L 0.000000e+000

<=R

JC a

A Q 8.1

JC a

CALL "comparison"

NP:=1.000000e+002

RP:=MD124

C :=Q8.1

A Q 8.1

L S5T#5S

SP "T2"

A "T2"

= M 0.1

a: BEU

SIMATIC ATS9\SIMATIC 300(1)\CPU 315\...\FC30 - <offline> 07/12/2008 09:11:28 AM

Page 1 of 1

FC30 - <offline>

IN 0.0

OUT 0.0

IN_OUT 0.0

TEMP 0.0

RETURN 0.0

RET_VAL 0.0

Block: FC30

Network: 1

A I 0.7

AN M 0.1

JCN a

L MD 124

L 0.000000e+000

<=R

JCN a

AN Q 8.5

JC a

CALL "comparison"

NP:=1.000000e+002

RP:=MD124

C :=Q8.5

A Q 8.5

FN M 0.7

= M 0.6

A M 0.6

L S5T#5S

SE "T7"

A "T7"

= M 0.1

a: BEU

timer trigger in s7300

mostafah

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jvdcande

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mostafah

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mostafah

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mohamedzobaa

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mostafah

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mohamedzobaa

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manmeetvirdi

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Madman

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mostafah

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jvdcande

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mohamedzobaa

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mostafah

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mohamedzobaa

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mostafah

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