Hello I've been having lots of issues for the past week and a half trying to use PUT GET access between 2 S7 1200 PLC's, I believe I'm doing everything as stated in manuals and these forums but I'm still getting nowhere, is it possible someone can take a quick look at this simple program and see where I'm going wrong.I'm not overly familiar with Siemens PLC's but have to believe it shouldn't be this difficult.

Any help is much appreciated.

Thanks in advance

Hello.

I strongly suggest you return to the original example. There are many notes to make about the version you supplied, which lead me to believe that I missed issues for my notes.

BR
 #dP

Hey dp,

I've downloaded a newer version of V13 as you suggested, I've also changed the addresses of some of the tags as it was double addressing as you spotted and deleted the other networks for ease of understanding as I don't believe I'm fully understanding the concept yet.

I have set values within the data block (boolean in this case) which is activated by an input on PLC 1, this change of value is seen in the the DB (in this case DBX10).

In the next PLC an output is switched from a signal within its DB but no value ever changes in this DB.

I've read over your previous notes but I'm finding them a little cryptic so obviously not fully grasping what you're trying to tell me. Also I'm not simulating as I've temporarily gotten access to 2 1214's

Thanks again

Hello.

PaulOC555

Hey dp,

I've downloaded a newer version of V13 as you suggested, I've also changed the addresses of some of the tags as it was double addressing as you spotted and deleted the other networks for ease of understanding as I don't believe I'm fully understanding the concept yet.

I have set values within the data block (boolean in this case) which is activated by an input on PLC 1, this change of value is seen in the the DB (in this case DBX10).

In the next PLC an output is switched from a signal within its DB but no value ever changes in this DB.

I've read over your previous notes but I'm finding them a little cryptic so obviously not fully grasping what you're trying to tell me. Also I'm not simulating as I've temporarily gotten access to 2 1214's

Thanks again

Attached is a demo that is loosely based on your first share project. To be able to put it here on the forum, I am forced to resort to some IT wizardry.

Please go to 7zip.org to get the 7zip application as Windows' built-in archiving will not work. 7zip should know what to do. Else the 'ultra' scheme with compression method of LZMA was applied to deliver an archive with ZIP extension.

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S7-1200 V4 firmware was used. (There is an extra setting in the section of the hardware configuration where you configure a PLC password.) The V4 allows it to be simulated with PLCSIM V13 SP1 Update 1 or V13 SP2.

Two PLC simulation sessions can be started - one for LOCAL and one for REMOTE.

Each PLC has a watch-table from where the process can be triggered. The internal-trigger is under REMOTE.

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Notice that the PUT and the GET instructions are only mentioned in one PLC (LOCAL). It is a one-sided configuration. Error recording also takes place.

The data exchange DBs were called different in addressing so that it is more clear where and what takes place. LOCAL has DB100 and DB200; REMOTE with DB10 and DB20. These do not need to be different, what you had before was correct.

Run the simulation(s) and see what happens. That includes the manipulation of the REAL and INT number mentioned in the watch-table.

Regards.

Hey dP,

Just wanted to say many thanks for all the help you've given me, the example is exactly what I needed and has worked perfectly. I'm now just trying to install something similar into my own project now and although having a few issues I'm sure I'll figure it out with the help from your example.

Anyway thank you again

Paul