ABB

Function:

DI651 is a digital input module for ABB ProControl P13 / P14 DCS system. The module collects field binary signals including valve limit positions, auxiliary equipment running status, relay contacts and fault alarm signals. It adopts galvanic isolation and signal filtering to resist electromagnetic interference on site. It transmits equipment status to the DCS controller for remote monitoring, alarm processing and safety interlock logic execution.

Application Scenarios:

Designed for ABB ProControl power plant DCS systems. It is widely used in thermal power plants, combined-cycle gas power plants, hydropower stations and waste-to-energy plants. It acquires digital signals of fans, pumps, motorized valves, circuit breakers and other auxiliary machinery. It serves as a common spare part for generator unit automation, applicable to legacy unit retrofit, maintenance replacement and system expansion.