Fieldbus Communication Module Yokogawa CENTUM VP ALF111-S51 ADAPT ESD Relay Output Module Feature Description Model Number SPAU

Feature Description Model Number SPAU 330 C1-AA Product Type Voltage Relay ABB Type Designation VOLTAGE RELAY Operating Frequency 50Hz Voltage Range 80-265 V DC/AC Net Weight 61kg Application

facility management

and regulatory reporting

offering flexibility in system design

Fieldbus Communication Module Yokogawa CENTUM VP ALF111-S51 ADAPT ESD Relay Output Module Feature Description Model Number SPAUProduct Description The ALF111 S51 is a high performance FOUNDATION Fieldbus (FF) H1 communication interface module designed for the Yokogawa CENTUM VP and Yokogawa CENTUM CS 3000 control systems. It acts as the gateway between the Field Control Unit (FCU) and H1 fieldbus segments, enabling bidirectional digital communication with smart field devices such as valve positioners, flowmeters, and pressure transmitters. By integrating the ALF111 S51, users