Remote IO

Remote I/O collects instrument signals and sends output commands over a network. Placing modules near equipment reduces cable runs and simplifies expansion. Teams can organize I/O around machines, skids, or process areas.

Yes, when the equipment is approved for the installation and conditions are met. The BEx1 IP67 module supports direct Zone 1/21 mounting without an additional enclosure. The standard BEx1 requires a certified Ex e enclosure, while the BEx2 requires suitable housing with at least IP54 protection.  

Confirm certification and installation instructions for each specific hazardous area remote I/O product.

Zone 1 remote I/O and Zone 2 remote I/O modules are used in areas with gas hazards, while Zone 21 remote I/O and Zone 22 remote I/O modules are for areas with combustible dust hazards. Selection depends on site classification and product approvals.

BEx1 and BEx2 options serve different installation zones, but their enclosure requirements and protection concepts are not interchangeable. Review the applicable certificate, temperature limits, and connected field devices with Exloc.

Ex i refers to intrinsic safety, which limits electrical energy in a circuit to reduce ignition risk. Ex e refers to increased safety, which uses construction measures to prevent ignition under specified conditions.

The BEx1 IP67 range offers different Ex i and Ex e explosion-proof remote I/O arrangements. Consider connected instruments, channel types, power requirements, and protection concepts.

Check diagnostics and environmental ratings for each version.

Certain BEx configurations support PROFINET or Modbus TCP/IP, including the BEx1 IP67 range. These modules support daisy chaining for modular expansion, with different analog and digital I/O arrangements.

Channel counts and diagnostic capabilities differ between versions. Confirm protocol, network architecture, and configuration before ordering. Capabilities vary by product.

Share your area classification, including gas or dust requirements, along with connected sensors and actuators. Provide required analog and digital channel counts, signal types, network protocol, and power supply.

Enclosure needs, ambient conditions, diagnostics, and planned expansion are useful. Our team can review these requirements against applicable BEx documentation and identify a suitable hazardous area remote I/O system before requesting a quote.