Ochbayar
Member
Hey All!
I'm begining engineer and i'm not so familiar with AB controllers. In our plant we are using ControlLogix 1756-L55/A i did upgrade from 15.03 to 16.22 but after that is showing me IO not responding also IO modules has only "OK" indication light, no Input signals lights. that error shows on PV+ communication module (I using 2 separate network module 1 for PC and another one for PV+). I tried delete and create it again but still no result it was worked good before upgrade Is it possible to downgrade the controller without damage? Any suggestion why it is not communicating?
I'm begining engineer and i'm not so familiar with AB controllers. In our plant we are using ControlLogix 1756-L55/A i did upgrade from 15.03 to 16.22 but after that is showing me IO not responding also IO modules has only "OK" indication light, no Input signals lights. that error shows on PV+ communication module (I using 2 separate network module 1 for PC and another one for PV+). I tried delete and create it again but still no result it was worked good before upgrade Is it possible to downgrade the controller without damage? Any suggestion why it is not communicating?