ABB Bailey FIO 100 Infi 90 Fieldbus I/O Module

This fieldbus input output module connects field devices to ABB Bailey Infi 90 control systems. The ABB Bailey FIO 100 processes discrete and analog signals from remote instrumentation. Eight digital channels and four analog inputs provide flexible I/O mixing on one module. Consequently, plant engineers can monitor sensors and actuators without multiple separate cards.

Technical Specifications of the Fieldbus Input Output Module

The ABB Bailey FIO 100 measures 180 mm in width and 240 mm in height. Its depth reaches 45 mm for standard Infi 90 rack mounting. The module weighs approximately 0.72 kg including all I/O and communication circuitry. A single front panel LED array shows network status, power, and per-channel activity. The front side features two 9-pin D-sub connectors for fieldbus communication. This design stores minimal energy in small decoupling capacitors only. Therefore, the module contains no batteries or large energy storage elements.

Parameter	Specification
Brand	ABB Bailey
Full Model	FIO 100
Category	Infi 90 Fieldbus Input Output Module
Dimensions (W x H x D)	180 mm x 240 mm x 45 mm
Weight	Approximately 0.72 kg
Digital Inputs	8 channels, 24V DC
Digital Outputs	4 channels, 24V DC, 0.5A each
Analog Inputs	4 channels, 4-20mA or 0-10V
Fieldbus Protocol	Infi 90 proprietary
Communication Ports	2 x 9-pin D-sub (RS-485)
Terminal Type	Removable screw blocks
Energy Storage	Minimal (decoupling only)
Supply Voltage	24V DC external

Functional Features and Signal Processing

The ABB Bailey FIO 100 performs analog-to-digital conversion with 12-bit resolution. You can configure each analog input independently for current or voltage measurements. The module scans all I/O points within a single 20ms fieldbus cycle. Integrated diagnostics report open circuits and short conditions for each channel. Consequently, operators receive immediate fault alerts for disconnected sensors or failed outputs.

Installation and System Integration

You must mount this I/O module into a standard Infi 90 rack slot. The ABB Bailey FIO 100 connects to the fieldbus through the front D-sub ports. A removable terminal block accepts field wiring from 14 to 22 AWG. The module automatically registers with the Infi 90 controller upon power-up. Always verify communication address settings before connecting to the active fieldbus network.

Maintenance and Operational Benefits

Because the ABB Bailey FIO 100 stores no battery-backed data, it needs no periodic battery changes. Technicians can replace the module without losing any configuration parameters. The hot-swappable design allows removal while the fieldbus remains active. Consequently, maintenance causes minimal disruption to plant operations.