DeltaV SIS hardware can be used with auxiliary equipment to support energize to actuate applications such as fire and gas applications.
Two modules are available for fire and gas and other energize to actuate applications:
The Auxiliary Relay DTA-Inverting module has a connection to a redundant Logic Solver's discrete input and discrete output channels and connections to redundant 24 VDC power supplies. Field terminals are used to connect to the Relay Diode module that is located next to the field actuator as shown in the following figure.
