Hello Experts,

I am new to SCL of Siemens. But have used the structured text in other IDE's. Here is a question from me. I have created a project and had inserted a simple code in the OB block as I have shown below. Though I make the Input := True in the hardware but the output does not show any result in the hardware as well as in the Variable watch table. And more over when I click the spectacle icon on the top, in normal case the corresponding window neighbouring to the code should be active. But it is not active (I have attached a snap shot of it). I have declared the variables in the Data_block_2 as shown in the code below.

I am not able to see the output1, as well as the Q and ET of the function IEC_Timer_0_DB. Can any one give me the reason and also can any one give an idea how to rectify it.

Looking forward to hear from you.

With regards

Johannes

IF "Input1" = TRUE THEN

"Output1" := True;

"IEC_Timer_0_DB".TON(IN:="Input1",

PT:="Data_block_2".PresetTime,

Q=>"Data_block_2".Q,

ET=>"Data_block_2".ElapsedTime);

END_IF;