ABB Bailey IIATS43 I/O Module | Mixed Digital Analog

The IIATS43 functions as a versatile input/output module for ABB Bailey INFI 90 platforms. This ABB unit combines discrete and analog I/O in a single compact design. We engineered this module to reduce cabinet space while maintaining comprehensive field connectivity.

Technical Specifications and Design Features

This I/O module weighs approximately 0.52 kilograms. Its dimensions measure 280 millimeters in height, 30 millimeters in width, and 280 millimeters in depth. The unit features a rugged metal housing with integrated edge connectors for backplane installation.

Parameter	Specification
Manufacturer	ABB
Model	IIATS43
Category	Input/Output Module
Product Line	Bailey INFI 90
Digital Inputs	16 channels (24V DC)
Digital Outputs	8 channels (24V DC, 0.5A)
Analog Inputs	4 channels (4-20 mA)
Analog Outputs	2 channels (4-20 mA)
Resolution	12 bits (analog)
Input Filtering	Programmable (1-50 ms)
Isolation	1.5 kV between field and bus
Power Consumption	4.2 W from backplane
Operating Temperature	0°C to 60°C
Dimensions (H x W x D)	280 mm x 30 mm x 280 mm
Weight	0.52 kg

Engineers will appreciate the mixed I/O configuration of the IIATS43. This module provides 16 digital inputs, 8 digital outputs, 4 analog inputs, and 2 analog outputs. Consequently, users can handle diverse field devices with a single module.

Furthermore, the integrated isolation protects the system from field wiring faults. The IIATS43 provides 1.5 kilovolts of isolation between field circuits and the backplane bus. This feature ensures reliable operation in electrically noisy industrial environments.

Signal Processing and Interface Details

The digital inputs accept 24V DC signals from sensors and switches. Programmable filtering from 1 to 50 milliseconds eliminates nuisance transitions from contact bounce. The digital outputs deliver 0.5A per channel for solenoid and indicator control.

The analog inputs accept standard 4-20 mA signals from transmitters. Twelve-bit resolution provides accurate measurement for process variables. Two analog outputs deliver 4-20 mA signals for valve positioning and actuator control.

System Integration and Installation

You can install this I/O module in any INFI 90 rack system. The IIATS43 communicates with the controller through the Module Bus. A removable screw terminal block simplifies field wiring and maintenance.

The module consumes 4.2 watts from the backplane power supply. This moderate power draw allows dense module configurations per rack. For reference, other Bailey INFI 90 I/O modules share this same form factor and installation method.

Diagnostics and Operational Reliability

The IIATS43 includes comprehensive diagnostic features for system monitoring. Status LEDs indicate power, communication, and channel activity. The module performs continuous self-checks to detect wiring faults and configuration errors. These diagnostics simplify troubleshooting and ensure reliable field device connectivity.