ABB Bailey SPRIO22 | Controller I/O Module

This controller I/O module provides mixed digital input and output capabilities for INFI 90. It connects field sensors and actuators directly to the controller bus. The unit mounts in any INFI 90 rack slot for local I/O expansion.

Technical specifications

Parameter	Specification
Brand	ABB Bailey
Model	ABB Bailey SPRIO22
Product Family	INFI 90
Category	Controller I/O Module
Input Channels	8 (eight) digital inputs
Input Voltage	24V DC nominal (18V to 30V)
Input Current	8 mA per channel
Input Delay	5 ms typical
Output Channels	8 (eight) digital outputs
Output Type	Transistor (sinking)
Output Voltage	24V DC
Output Current	0.5 A per channel (4A total)
Output Delay	2 ms typical
Scan Time	10 ms (inputs and outputs)
Isolation	500V RMS (optical)
Component Count	Approximately 95 components
Integrated Circuits	12 ICs (optocouplers, drivers, logic)
Power Supply	24V DC external
Current Consumption	150 mA (logic) + load current
Status Indicators	16 x LEDs (I/O status), 2 x LEDs (PWR, RUN)
Test Points	4 gold-plated test points
Energy Storage	None (no battery or capacitor)
Dimensions (L x W x H)	Approx. 20 cm x 10 cm x 3.5 cm
Weight	Approx. 0.42 kg
Operating Temperature	0°C to 55°C
Mounting	INFI 90 rack slot

Detailed Technical Analysis

This controller I/O module provides eight digital inputs and eight transistor outputs. It interfaces directly with the INFI 90 controller bus without additional gateways. The unit scans inputs and updates outputs every 10 milliseconds. Each input draws 8 milliamps at 24V DC for reliable sensing.

Now let us examine its output characteristics. The outputs use sinking transistors that switch to ground. Each output handles up to 0.5 amps for driving solenoids and relays. The module limits total output current to 4 amps maximum. Optical isolation provides 500V RMS protection between field and logic sides.

This I/O module draws 150 milliamps from a 24V DC external supply. Sixteen LEDs show the status of every input and output point. Two additional LEDs indicate power and run status. The ABB Bailey SPRIO22 contains no batteries or capacitors for energy storage. Four gold-plated test points allow signal verification during commissioning.

Installation and Configuration Guidelines

You insert this module into any available INFI 90 rack slot. Connect the 24V DC power supply to the designated terminals. Wire sensors to the input channels and actuators to the output channels. Use shielded cable for input wiring to reduce electrical noise.

Configure the I/O mapping through the INFI 90 engineering software. The module automatically communicates with the controller upon power-up. Test each channel individually before placing the system into service. Always power down the rack before inserting or removing this module.

Practical Applications

Engineers use this I/O module for INFI 90 system expansion and local I/O. It connects field devices directly to the controller rack. This component also works in legacy DCS retrofit projects. Its 16 total channels suit small to medium I/O requirements.

Summary of Features

To conclude, this I/O module provides 8 inputs and 8 outputs with 10ms scan time. It weighs 0.42 kilograms and includes optical isolation. Choose ABB Bailey SPRIO22 for reliable mixed I/O in INFI 90 systems.