Unitronics Industrial Automation Systems
1
IO-RO8, IO-RO8L
I/O Expansion Module 8 Relay Outputs
The IO-RO8 and IO-RO8L are I/O
expansion modules that can be used in
conjunction with specific Unitronics OPLC
controllers.
The modules are identical except for their
power supply specifications: IO-RO8 runs
at 24 VDC; IO-RO8L at 12 VDC.
Both modules offer 8 relay outputs.
The interface between module and OPLC
is provided by an adapter.
These modules 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
Outputs’ power supply
connection points
4
Output connection points: O4-O7
5
Output’s status indicators
6
Module-to-module connector port
7
Output connection points: O0-O3
1
6
2
3
4
7
5
POWER
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 electrical wiring of this device.
Under no circumstances will Unitronics be liable or responsible for any consequential damage that may
arise as a result of installation or use of this equipment, and is not responsible for problems resulting from
improper or irresponsible use of this device.
All examples and diagrams shown in the manual are intended to aid understanding. They do not
guarantee operation.
Unitronics accepts no responsibility for actual use of this product based on these examples.
Only qualified service personnel should open this device or carry out repairs.
Please dispose of this product in accordance with local and national standards and regulations.
Check the user program before running it.
Do not attempt to use this device with voltage exceeding permissible levels.
Install an external circuit breaker and take appropriate safety measures against short-circuiting
in external wiring.
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.
