Hello,

don't have v15, can you pls only post screenshot from CM I-Slave I/O areas (Transfer slots)?

Hello,

thnx for screenshots. So you've define also that Master I/O addresses to Slave inside I-Slave cfg as I said, that was what I sugested to you, this is synchro with Master what need to be defined. Thnx again for infos.

I also have the same problem.

My project use S7-300 is master and connect to 36 slave, but only slave 35 (CM 1242-5 + S7-1200 1215 DC/DC/DC) error in lower level compoment. 

I use the same program and configuration for them, slave 35 uses profibus address 35. Can handsome guys help me know what wrong with that? Thanks!