Writing Data To Profinet Slave Device

[smithn1]

This is my first time using a Siemens PLC I am using a Siemens S7-1200 Simatic V12 with a Murr I/O MVK Dist I/O 55269 over profinet. I have setup the PLC and the I/O now I am trying to write to the device I know I need to use the WR_REC command but, I am not sure how to set it up. What I really need to do is just be able to write and read I/O from the Murr device over profinet. Is there a simple way to view the device through Simatic and force the I/O

[Rod_Hackney]

I assume this is just distributed I/O via profinet. You should have setup the I/O in your hardware configuration for the Siemens using a GSD file provided by the distributed I/O vendor. This sets up the profinet network. I/O addressing will be assigned by this and you can monitor inputs and outputs just like you use conventional rack based I/O .

[Homer_BL]

Intall XML file from MURR (easy to find in murr site) Add 55269 to devices. Add modules to 55269 Then you will se alocated addresses for I/O.