What steps must I take to transition the boot block from state A to state B?
Hi @Mariod, tbh I have no idea what you are looking for 
I only found the manual https://www.br-automation.com/downloads_br_productcatalogue/BRP44400000000000000018331/7ex481501.pdf and it helped me realize that your question is related to a very old 2003 system. If no one helps you here, I think you will need to get in contact with the local B&R office support.
The EX481 is a really old 2003 module offering PLK V1
“normally” the master controls this module and I would have never heard that any application must switch the module in any way to any other operating mode.
Which master are you using ?
I was repairing one of the Pave Micromac wire benders. The EX481 module is set to boot from State B. These machines are from 2002. The module I bought boots from State A by default, so I’m looking for a way to change this.
master are 5LS187.6