Hello,

I am having a hard time getting this communication to work.

Basic setup:

1517-3 PN/DP is the IO controller
319-3 PN/DP with 343-1 Lean is the iDevice (using the CP as iDevice)

I tried many different solutions, nothing works. At the moment I have the S7-319 acting as the iDevice, setup in Simatic Manager. Exported the gsd file and setup the 1517 in TIA portal with the gsd file as idevice.

The PLCs act normally, no faults. But I cannot get any data from to the other. Can anybody point me in the right direction? In the end I have to communicate with the CP343-1, not with the 319 directly.

JanPetersen

Can't upload the TIA project because of the file size. It can send it by mail or SecuFX instead if anyone is interested. But it is mostly based on the examples from the Support site here.

@Christoph - i-Device has got to do with how the hardware is configured, right? Would it help if Jan made his program smaller, leaving only the hardware configuration and deleting all other portions. Then he can upload to the forum.  Would it help?

Hi,

Thanks for the feedback so far. I tried to compress the TIA file even more, but it changes the size only a little bit. Still 7.9 MB which is too big for the forums.

The PLCs are both in RUN and there are now red LEDs, no diagnostic alarms. When I switch off the slave, the IO Controller indicates correctly that the idevice lost communication. So the hardware setup is working.

My guess is that I am doing the software part wrong.

ChristophD, when you tested the setup, did you use any blocks for sending and receiving in the PLCs? Or did you just write/read directly from the IO addresses?

Hello again,

I tried the exact same thing. But I do not get any values from one to the other PLC.

The IO device communication is working, all LEDs on both PLCs are green. No diagnostic messages or nothing. On the S7-300 i send a running counter from a DB to QB1000. I can monitor QB1000 and the value is changing. But on the 1500 nothing happens. 

Another question is where I can change the addresses of the IO device in TIA portal. You write that you could read the values from the S7-300 at IB0, but where can i change (or at least see) which address has been given to the IO device?

Thank you so much!

I was always looking in the properties window for anything like that. The address was set to 256, no wonder I got nothing at IB0...