FC-IIOTA-R24 Input/Output (I/O) Module

FC-IIOTA-R24 Input/Output (I/O) Module
Product Overview
FC-IIOA-R24 is an IOTA (Intelligent Terminal Output Adapter) series I/O module produced by Honeywell in the United States. It is the core field I/O component of the Expert PKS/TPS DCS system and is often used in conjunction with the FC-RUSIO-3224 integrated module.

Model Interpretation
Meaning of field codes
FC – Honeywell Field Controller Series Identification
IOTA – Intelligent Terminal Output Adapter
R – Relay Output
24-24 channels/24VDC operating voltage
📌 The IOTA series is a key module used for remote I/O expansion in the Honeywell Expert PKS system, which communicates with the main controller through the I/O Link (IOLink) bus.

Core technical parameters
Parameter specifications
Brand Honeywell
Belonging to the system: Expert PKS/TPS DCS
Module type: Digital I/O module (relay output)
Number of channels: 32 channels (16 DI+16 DO, or 32 DO configuration)
Input type 24VDC digital input (Dry Contact/Wet Contact)
Output type 24VDC Relay Output
Communication interface I/O Link (IOLink) bus
Working voltage 24VDC
Environmental temperature -20~70 ° C (-4~158 ° F)
Protection level IP20 (installed inside the cabinet)
Installation method: DIN rail/chassis installation
Redundancy support optional redundancy configuration (paired use)
System Architecture and Applications
┌─────────────────────────────────────────────────┐
│ Expert PKS/TPS DCS system │
│ │
│ ┌──────────┐ I/O Link ┌───────────────┐ │
││ Controller │◄═══════════════► FC-IIOTA-R24 ││
││ (CC/PM) │ Fiber optic/twisted pair │ (32 channel I/O) ││
│ └──────────┘ └───────┬───────┘ │
│ │ │
│ ┌────────▼────────┐ │
││ On site signal/actuator ││
││ (sensors/valves, etc.) ││
│ └─────────────────┘ │
└─────────────────────────────────────────────────┘
Typical application scenarios
Industry Applications
🏭 Auxiliary control of power turbine units and boiler combustion management
🛢️ Petrochemical reactor temperature/pressure monitoring, emergency shut-off valve control
⚡ Chemical pump/fan start stop control, safety interlock
🔧 Metallurgical cooling water system, air separation equipment control
Constant pairing module
Pairing module function
FC-RUSIO-3224 integrated I/O module (remote I/O interface compatible with IOTA)
FC-IO-0001 Expander Module
FC-IOLIM I/O Link interface module (connecting IOTA and controller)
FC-SCNT01 Safety Controller Module (SIS System)
IOTA series classification comparison
Model Output Type Channel Number Characteristics
FC-IIOTA-R24 Relay Output (Relay) 32 Universal Type, with Isolation
FC-IOTA-T24 transistor output (Transistor) 32 high-speed response, no mechanical wear
FC-IIOTA-M24 MOSFET output 32 medium speed, long lifespan
FC-IOTA-S24 Solid State Output (SSR) 32 Silent, Spark Free