The CI801 is a PROFIBUS-DPV1 communication interface module for ABB S800 I/O systems. It acts as a fieldbus slave connecting I/O modules to a controller. It supports HART pass‑through, hot configuration, isolated power, and holds ATEX, marine, and hazardous location certifications.
The 07AI91 is an 8‑channel configurable analog input module for the ABB CS31 system bus. It supports temperature sensors (Pt100/Pt1000, J/K/S thermocouples) and voltage/current inputs. It features galvanic isolation, DIP switch addressing, and comprehensive diagnostic functions.
