Dossier for ABB SPDSO14

ABB Bailey SPDSO14 Symphony Plus 16-Channel Galvanically Isolated Open Collector Digital Output Slave Module (INFI 90 / Harmony DCS Platform) Official catalog short description: DO Module, 16 CH, Open CollectorABB Group Core Function Official catalog short description: DO Module, 16 CH, Open CollectorABB Group Core Function SPDSO14 is a rack-mounted discrete output I/O slave card exclusively built for ABB Symphony distributed control systems. It receives digital on/off control commands from Symphony multi-function controllers over dual redundant Controlway RS485 bus and converts logic signals into open-collector switching outputs to drive field actuators, solenoids, pilot relays, and indicator lamps. 16 independent optically isolated open-collector output channels to eliminate ground loop