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Remote I/O Gateway

 

Buy a Remote I/O Controller (Modbus TCP) for Fast Ethernet Monitoring & Relay Control

If you want to buy a remote I/O controller that modernizes legacy signals without adding a PLC program, Sollae remote I/O devices are built for real deployments: read digital inputs, switch relay outputs, and connect everything to your existing Modbus TCP ecosystem (SCADA, HMI, PLC) — or control it directly via a browser. These units act as an i/o controller + remote gateway in one, so you can roll out remote monitoring and control across multiple sites with predictable effort.

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Why teams buy Sollae Remote I/O (Gateway) Controllers
  • Modbus TCP + Web UI: integrate with industrial systems, or control/monitor instantly via an embedded web server (customizable web page).
  • Relay outputs + pulse control: switch low-voltage loads and generate pulses for practical automation tasks.
  • Macro / logic automation: run simple rules locally for autonomous control (less dependency on servers).
  • ModMap support: use the free ModMap tool/app for quick commissioning and operation.
  • Scalable multi-device control: link controllers together into an “Internet Switch” style I/O system across locations.

What Remote I/O Gateways Are Used For in Practice

A remote I/O controller is usually purchased to reduce site visits, add visibility to “dumb” equipment, and enable quick, secure control over Ethernet. Typical real-world uses include:

  • Remote reset & power cycling for edge devices (routers, modems, controllers, PCs) via relay outputs
  • Status monitoring (limit switches, alarms, door contacts, machine ready/fault signals)
  • Simple remote control (gates, pumps, valves, lighting circuits via low-voltage control relays)
  • Distributed I/O extensions where adding cabling or a full PLC rack is overkill
  • Multi-site standardization (same Modbus TCP register approach across many locations)
Quick fit check: If your project is “signals first” (DI/DO + relays + web control), a remote I/O controller is typically the fastest path. If your project is “protocol conversion first” (e.g., serial fieldbus to Ethernet), start in the Modbus gateway category instead.

Modbus TCP Remote I/O Integration (SCADA/HMI/PLC) + ModMap Commissioning

Sollae Remote I/O controllers speak Modbus TCP, which is why they’re often bought for brownfield modernization: you can map inputs/outputs into your existing SCADA/HMI/PLC quickly — and validate the build in minutes using ModMap.

  • Industrial integration: Modbus TCP control/monitoring from software, mobile apps, HMI panels, or other Modbus TCP devices
  • Direct web control: embedded web server with a preloaded page (and the option to customize the web UI)
  • Multiple clients: supports multiple simultaneous TCP connections so more than one tool/operator can monitor the same I/O
Buyer tip: If you need “fast proof” before a rollout, choose Sollae because you can test I/O points via ModMap and a browser before you touch the SCADA/PLC side.

Compare Remote I/O Controllers: CIE-H12G vs CIE-H14G vs CIE-H10G

Model I/O + Interfaces Power / Environment Best for
CIE-H12G
Compact remote I/O gateway		 Digital input (opto-isolated, up to 24VDC) + relay outputs (pulse capable), Ethernet; Modbus TCP + HTTP + Macro control options DC 5V; wide temp range (industrial-grade operating temperature) “Small site” control/monitoring: a few signals, quick web + Modbus TCP integration
CIE-H14G
4-port remote I/O controller		 4 DI (photo-coupler, max 24VDC) + 4 relay DO (pulse capable) + RS-232 + Ethernet; Modbus TCP + web control + macros Wide-range supply DC 8.5–38V; operating temp down to -40°C (industrial installs) Cabinet/field installs where you want multiple I/O points and flexible power input
CIE-H10G
8-port remote I/O controller		 8 DI (photo-coupler, max 24VDC) + 8 relay DO (pulse capable) + RS-232 + Ethernet; Modbus TCP + web UI; can also run serial↔Ethernet conversion modes DC 5V; durable enclosure options; operating temp suitable for industrial environments Higher I/O density: remote monitoring + relay control across many signals (machines, utility rooms, distributed sites)
Safety & wiring note (buying consideration): Relay outputs are rated for low-voltage DC switching (check each product’s relay rating in the specs). Digital inputs are opto-isolated and designed for signal monitoring up to 24VDC.

Why Sollae Remote I/O Controllers Beat Generic Ethernet I/O Modules

Many Modbus TCP remote I/O modules give you register access — and then you still need to build the “operator layer” (web UI, workflows, simple logic). Sollae is often chosen because it’s more deployment-ready for IT/OT teams:

  • Embedded web server + customizable page: get a usable interface immediately (and brand/customize it later).
  • Macro / logic formulas: run basic automation locally (handy when you don’t want a PLC change for every small rule).
  • ModMap ecosystem: faster commissioning and troubleshooting than many generic devices.
  • “Internet Switch” concept: link multiple controllers so inputs on one device can control outputs on another across a network.
  • IT-friendly networking: supports modern IP stacks and access restrictions (useful in segmented OT networks).

Who Gets the Most Value From a Remote I/O Controller?

  • Company owners modernizing equipment without funding a full custom automation rebuild
  • IT/OT specialists who need reliable remote switching/monitoring over Ethernet with predictable integration
  • System integrators delivering repeatable remote monitoring + control projects across multiple sites
  • Facility & maintenance teams reducing downtime via remote reset, alarms, and quick diagnostics

Remote I/O Controller Buyer Checklist (Before You Order)

  • I/O count: how many inputs and relay outputs do you need today — and in 12 months?
  • Power constraints: need wide-range DC input? Choose CIE-H14G (DC 8.5–38V); otherwise compact 5V models may fit.
  • Control method: want SCADA/HMI integration? Choose Modbus TCP. Want quick ops access? Use the built-in web UI + ModMap.
  • Autonomy: need local logic/macro control (no dependency on a server/PLC change for simple rules)? Pick models with macro/logic capability.
  • Multi-site scaling: planning distributed control across devices? Consider the “Internet Switch” style linking between controllers.

Ready to modernize your signals? Choose your remote I/O controller above — start small with CIE-H12G, scale to CIE-H14G, or go higher-density with CIE-H10G.

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