step 7 5.3 generality

[got 0]

Hi, i am new with step 7 programming and i have few question if somebody could help me first i made a little program with OB1 and a FC i try the online mode to see the state of bits but i can't see OB1 and FC1 at the same time online one can be online at once? is there a solution fo that? tkank you

[Rodney 21]

To see the values of OB1 and your FC you have to create a variable table. From the menu Insert ,S7 Block , Variable table , the default first variable table is VAT_1 from there you can insert the addresses you wish to monitor. Rodney

[got 0]

thank you for your answer i ever did that but it would be cool to visualise the state of each net...

[khekd 2]

you can actually look at both blocks simultaneously by opening both OB1 and your FC within the ladder editor. Then go to <window><arrange><horizontally> and click on the "eye glasses" icon for each window and you will see both of them animating at the same time. Khek

[got 0]

no if i do that i go a message that told me there is already an instance ruing online mode .... !?

[RMA 0]

I think it might be a CPU limitation, especially if you are using a 3xx CPU. I notice that when I'm checking out a program online and change from one FB/FC/OB to another, I get a message box telling me that the observation of the first window will be shut down (even though it's not on screen at the time). I suspect it may also have something to do with how long each program is, because I'm 99% certain that on a relatively small machine I did a few months back, I was able to observe two different FCs or one FC and OB1 at the same time. My current project is much more complex.

[got 0]

i am just starting so my project is quiet simple... but if i am not alone in this case i think it's normal.. my cpu is a 314 ... another thing i am using wincc flexible ti program an C7 635 panel touch t program it i had to restart the 635 and click on transfer is there any solution to program it without restart it ??? Thanks.. sorry for all those question but i do a lot of test as i am starting in the siemens world