Unitronics Industrial Automation
1
IO-AI4-AO2
I/O Expansion Module 4 Analog Inputs, 2 Analog Outputs
The IO-AI4-AO2 is an I/O expansion
module that can be used in conjunction
with specific Unitronics OPLC controllers.
The module offers 4 12-bit analog inputs;
functioning at 0-10V, 0-20mA, 4-20mA;
and 2 12-bit +sign analog outputs;
functioning at ±10V, 0-20mA, 4-20mA.
The interface between the module and the
OPLC is provided by an adapter.
The module may either be snap-mounted
on a DIN rail, or screw-mounted onto a
mounting plate.
Component identification
1
Module-to-module connector
2
Communication status indicator
3
Connection points for power
supply to analog unit
4
Output connection points
5
Input/Output status indicators
6
Module-to-module connector port
7
Input connection points
1
6
2
3
OUT OF RANGE
SHORT CIRCUIT
IO-AI4-AO 2
AI
AO
POWER
+V 0V
I
V
COM
AO 0
I
V
COM
AO1
I
V
COM
AI3
I
V
COM
AI2
I
V
COM
AI1
I
V
COM
AI0
5
4
7
Before using this product, it is the responsibility of the user to read and understand this document and
any accompanying documentation.
All examples and diagrams shown herein are intended to aid understanding, and do not guarantee
operation. Unitronics accepts no responsibility for actual use of this product based on these examples.
Please dispose of this product in accordance with local and national standards and regulations.
Only qualified service personnel should open this device or carry out repairs.
User safety and equipment protection guidelines
This document is intended to aid trained and competent personnel in the installation of this equipment as
defined by the European directives for machinery, low voltage, and EMC. Only a technician or engineer trained
in the local and national electrical standards should perform tasks associated with the device’s electrical wiring.
Symbol
Meaning
Description
Danger
The identified danger causes physical
and property damage.
Warning
The identified danger can cause
physical and property damage.
Symbols are used to highlight
information relating to the user’s
personal safety and equipment
protection throughout this document.
When these symbols appear, the
associated information must be read
carefully and understood fully.
Caution
Caution
Use caution.
Failure to comply with appropriate safety guidelines can result in severe personal injury or
property damage. Always exercise proper caution when working with electrical equipment.
