Hello.

I'm sure I found a document some time ago that listed out what conditions actually stopped the CPU.

For example, if there is a device on the PN network that falls off, with the 300, the CPU would go looking for OB86, if it couldn't find it, it would crash. Whereas the 1500, it doesn't.

So I'm looking for the conditions in which the 1200 & 1500 would actually stop.

I've tried searching for it, but can't find it. Hopefully someone here can lay there hands on it & show me where it is!

Thanks!!!

Hi,

For the S7-1200, information about the error OBs and how the CPU behaves if they are configured or not can be found in this manual link:

https://support.industry.siemens.com/cs/us/en/view/109814829/159659816075

the behavior is indicated for each type of OB. For the S7-1500 it is summarized in this table:

https://support.industry.siemens.com/cs/us/en/view/59191792/154404616971

Have a nice day.

Hi.

Thanks for the reply.

No, it wasn't any of those links. I found them whilst looking for the doc I was originally looking for. I don't think I dreamt that I saw such a document  

Why doesn't the CPU stop anymore like it did with the 300 - with such conditions are a PN or DP device/node dropping off the network. I'm sure the doc detailed this kind of information!

Argh, hahaha!

Towome

Hi,

do you look for something like this:

Downloading blocks in the "RUN" operating state to the device

Here you will find a table that shows you at which process the CPU goes into Stop or remains in Run

or this:

Which organization blocks can you use in STEP 7 (TIA Portal)?

Regards,

Towome

If you *want* that behavior, ENABLE it by checking the boxes of the Profinet hardware configuration to check the PN connections.  The default setting is not checked.

DanF5

Hi.

Thanks for the reply.

No, it wasn't any of those links. I found them whilst looking for the doc I was originally looking for. I don't think I dreamt that I saw such a document  

Why doesn't the CPU stop anymore like it did with the 300 - with such conditions are a PN or DP device/node dropping off the network. I'm sure the doc detailed this kind of information!

Argh, hahaha!

Towome

Hi,

do you look for something like this:

Downloading blocks in the "RUN" operating state to the device

Here you will find a table that shows you at which process the CPU goes into Stop or remains in Run

or this:

Which organization blocks can you use in STEP 7 (TIA Portal)?

Regards,

Towome