seeing only 16 bytes of FB answer in DB

Hi;

I have a FB  with array input and output. I can change the size of output array but in every situation, I just can see the 16 bytes of answer in DB. If I set the output size lower than 16 bytes, there is no problem and I can see the correct answer. my scl code in FB is correct and I checked it many times.

shv

Hi;

I have a FB  with array input and output. I can change the size of output array but in every situation, I just can see the 16 bytes of answer in DB. If I set the output size lower than 16 bytes, there is no problem and I can see the correct answer. my scl code in FB is correct and I checked it many times.

 Hi,

So Check the data type of the DB, maybe the data type chosen on you DB can't receive more than 16 Bytes, for example if you defined an Array[16..1] of Byte, it's not possible to store more than 16 Bytes inside it( from Byte 0 to Byte 15)..

Regards

At first Thank you for your response. I defined output array like below:

array[0..39] of int

and when I run the program I can see byte 0 to 39, but after byte 15, the amount is 0 that is not correct. 

Hello,

maybe you can post your code....

otherwise is very difficult to give meaningful help...

Best Regards

shv

At first Thank you for your response. I defined output array like below:

array[0..39] of int

and when I run the program I can see byte 0 to 39, but after byte 15, the amount is 0 that is not correct. 

 @shv -> The guys might have some trouble visualizing your problem. Please consider making a screen capture to show them what you are talking of. You can use software like ShareX to do that.

Do you have the same result when using the "watch table" / "status table" / {or whatever Step7 classic called it}? Perhaps looking one element like value[39] only, for example - not ALL elements.

What happens if you set that element (value[39]) to a non-zero value?

Hi again,

Thank you for your answers, I made a screen capture.

output is an array and I watch the answer in a table. I set output in 3 parts separately,from byte 0 to 17,  18 to 21,  22 to 39.  I tried to access y[39]  but the amount was 0 again!!! 

Hi again,

when I want to work with large amount of data and use them in FB is it a good idea to work with simatic manager? pcs7 can't help?