mmercial Dossier: ABB IMDSM04 Pulse Input Slave Module

ABB Bailey IMDSM04 8-Channel Pulse Input Slave Module (INFI 90 / Symphony Harmony DCS Series) Core Functional Overview The IMDSM04 is a rack-mounted slave I/O module exclusively built for legacy ABB Bailey INFI 90 and Symphony Harmony distributed control systems. It acquires pulse, frequency, and period signals from field metering and speed sensors, converts raw pulse waveforms into standardized digital values, and transmits processed measurement data to DCS master controllers via the Universal I/O Bus (UIB). Core Functional Overview The IMDSM04 is a rack-mounted slave I/O module exclusively built for legacy ABB Bailey INFI 90 and Symphony Harmony distributed control systems. It acquires pulse, frequency, and period signals from field metering and speed sensors, converts raw pulse waveform