Modular remote I/O systems transmit process data from safe or explosion hazardous areas by connecting binary and analog sensors and actors to the control system via a bus interface. Remote I/O is the right choice when you want to put I/O modules close to the field devices. Due to the reduced wiring effort, you not only save cables, but also time, money, and work effort. Hence, remote I/O field units can be installed in a decentralized location inside hazardous areas while you easily control and monitor sensors and actors from the control room.
You can connect 4 mA … 20 mA devices to remote I/O, including water flow transmitters, valve positioners, pressure transducers, or temperature transmitters. Devices such as thermocouples, resistance temperature detectors (RTDs), mechanical contacts, and visual or audible alarms may also be connected.
Our remote I/O systems are compatible with network protocols like:
Pepperl+Fuchs offers two types of remote I/O systems for different explosion-hazardous environments:
FB remote I/O is certified for mounting in Zone 1, placing the remote I/O system close to field devices. This modular signal conditioning system allows you to interface signals from the field with a control system located in the non-hazardous area via Ex i or Ex e field connections. The FB remote I/O system is installed in an enclosure. Standard enclosure options are glass fiber reinforced polyester (GRP), fiberglass, or stainless steel. Pepperl+Fuchs offers complete remote I/O solutions, including fully certified enclosures with built-in systems and components.
LB remote I/O is certified for mounting in Zone 2, Class I/Div. 2 explosion-hazardous areas. This modular signal conditioning system allows you to interface signals from the field with a control system in the non-hazardous area via Non-Ex or Ex i connections. Both circuit types can be mixed in one system. The LB remote I/O system is plugged into a backplane. Alternatively, our Solution Engineering Centers (SECs) can provide the system pre-mounted into a fully certified custom enclosure.