My question is regarding ModbustTCP using a CI867, 800xAv5.1. My understanding is the address is defined using IEC61131-5 standards. The example i founds shows address 30001 would equal '%IW10#0001' where %IW would equal FC4. How is the 10# defined? Does anyone have a full breakdown for what each function code is, or how exactly these addresses are defined?