Hello, I've recently tried to upgrade my PLC controller from a L72 to L84ES and everything seemed to work, all buttons and screens as far functionality on my PV600s HMIs, but my alarm banners would not. it displays READ ERROR IP: (address)ath 1 0: TAG: LC1_HMI_FaultDisplay which is my tag name. i have 6 PV600s in this cell and i checked the tag properties. It is pointing to the correct Node and Ip. the tag is a DINT (controller scope) in PLC. what am i missing here? So i reverted back to the Original L72 processor and without doing anything it all works like it should. i didnt change anything in PV or PLC, but i need to upgrade this as im starting to run low on memory , hence the reason for upgrade. Id really appreciate any help with this!