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Model: FS-IOBUS-CPIO3
Brand: Honeywell
Series: FS Series / IOBUS Family
Type: I/O Bus Interface Module
The FS-IOBUS-CPIO3 is an industrial-grade I/O bus communication module designed to serve as the connection interface between the controller chassis and the I/O chassis within distributed control systems (DCS). It functions as a communication bridge, enabling fast, accurate transmission of process data, system diagnostics, and control instructions.
Designed for integration within modular rack systems, the FS-IOBUS-CPIO3 ensures reliable communication between control and field-level hardware. It supports extended temperature operations and provides robust signaling capabilities for modern industrial applications.
| Parameter | Specification |
|---|---|
| Model | FS-IOBUS-CPIO3 |
| Power Supply Voltage | 12 VDC |
| Power Consumption | <10 mA |
| Communication Protocol | Serial I/O Bus (proprietary/modbus-based) |
| Mounting Type | Rack-mounted |
| Operating Temperature | –20 °C to +70 °C |
| Storage Temperature | –40 °C to +85 °C |
| Humidity | 5% to 95% non-condensing |
| Channel Support | 4 bus channels |
| Bus Length Support | Up to 100 meters |
| Material | Industrial-grade ABS/Metal casing |
| Dimensions (mm) | 22 (W) × 124 (H) × 126 (D) |
| Weight (kg) | 0.1 kg |
| Cooling | Passive air-cooled |
Communication bridge between control processors and I/O modules
Industrial DCS (Distributed Control System) backbone
Used in industries such as oil & gas, power generation, chemical processing, water treatment, and metallurgy
Enables fault isolation and redundancy in process control systems
Suitable for both new installations and upgrades of legacy DCS systems
Critical for modular system design with distributed racks
✅ Compact Size & Lightweight: Ideal for space-constrained cabinet designs
✅ Low Power Usage: Helps reduce power budget across systems
✅ High Reliability: Designed to operate in tough industrial conditions
✅ Temperature Resistant: Wide operating and storage temperature ranges
✅ Modular Expansion: Easily integrates into scalable control systems
✅ Fast Bus Communication: Supports quick transmission of control and diagnostic data
✅ Easy Maintenance: Rack-mounted design supports fast module replacement
✅ Protocol Compatibility: Interfaces seamlessly with Honeywell’s FS Series architecture
| Model | Description |
|---|---|
| FS-IOBUS-CPIO | Standard I/O bus controller module |
| FS-IOBUS-CPIO2 | Enhanced communication variant |
| FS-IOBUS-CPIOX6 | Extended capacity I/O bus interface |
| FS-IOBUS-CPIO4 | High-density version for complex systems |
| FS-IOBUS-CPIO-R | Redundant I/O bus communication module |
| Model | Description | Key Feature |
|---|---|---|
| FS-IO-0001 | Digital I/O interface module | Multipoint input/output module |
| FS-AI-0800 | Analog input module (8-channel) | For precision analog data gathering |
| FS-AO-0400 | Analog output module (4-channel) | Drives analog actuators |
| FS-DO-1224 | 12-channel digital output module | Solid-state switching |
| FS-CCI-HSE-02 | Communication controller interface | For HSE-based systems |
Q1: What is the main function of FS-IOBUS-CPIO3?
A1: It serves as a communication interface that connects the controller chassis to I/O chassis within a distributed control system.
Q2: Is FS-IOBUS-CPIO3 suitable for high-temperature environments?
A2: Yes, it operates between –20°C and +70°C and can be stored down to –40°C.
Q3: How many I/O channels does this module support?
A3: The module supports communication across 4 independent bus channels.
Q4: What type of communication protocol does it use?
A4: It uses a proprietary or Modbus-compatible serial communication protocol designed for Honeywell’s FS series systems.
Q5: Can FS-IOBUS-CPIO3 be used in redundant configurations?
A5: Yes, it supports redundancy when used in systems with mirrored or dual buses.
Q6: How is the module mounted?
A6: It is designed to be mounted into a standard rack (rack-mounted).
Q7: What is the size of the FS-IOBUS-CPIO3?
A7: Its dimensions are approximately 22 mm × 124 mm × 126 mm.
Q8: Is the module hot-swappable?
A8: Typically, it must be replaced under safe, powered-down conditions, depending on the system’s architecture.
Q9: Can it be used with other brands of DCS?
A9: It is optimized for Honeywell FS Series systems and may not be compatible with other vendors.
Q10: What are the typical industries for its use?
A10: It is used in energy, chemical, petrochemical, water, and manufacturing industries.
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