The Yokogawa UR1AG3-100H-020101/CN is a Single-channel Isolated Pulse Input Module designed for the ProSafe-RS Safety Instrumented System (SIS). It can also be used in the CENTUM VP integrated production control system.
This module serves as a dedicated interface between field-level pulse-generating devices and the controller's internal processing system. It is engineered for high-reliability applications where safety and accuracy are paramount. Its primary function is to receive a pulse train from a device like a turbine flowmeter or a rotary encoder, provide electrical isolation and signal conditioning, and convert the incoming pulse frequency into a precise digital value that represents a process variable, such as flow rate or speed.
