Posted 12 Jul 2015 I am new to Siemens PLC and i am doing a project where i am using a S7-1214C (DC DC RLY) and i am adding a CM1243-5 ProfiBus module on the left side. I was told that i need to use a DPRD_DAT and DPWR_DAT command to interface with my Beckhoff field I/O.. I am confused for two reasons - (1) I can find no example of good answer on how to use this command to connect to my I/O. (2) Why do i need a program statement to read my Profibus I/o when there is a newtork setup feature in TIA V13. (am attaching a screen image of ProfiBus setup page) Anybody explpain this to me? Thanks Share this post Link to post Share on other sites
