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Unitronics IO-ATC8 User Manual
Unitronics IO-ATC8 User Manual

Unitronics IO-ATC8 User Manual

I/o expansion module
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IO-ATC8
I/O Expansion Module
The IO-ATC8 is an I/O Expansion Module
that can be used in conjunction with
specific Unitronics OPLC controllers.
The module offers 8 inputs that may be
set as either analog or thermocouple
inputs via wiring, jumper and software
settings.
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
Input connection points, I4 to I7
4
Input status indicators
5
Module-to-module connector port
6
Input connection points, I0 to I3
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.
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.
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.
Unitronics Industrial Automation
User Guide
8 Analog/Thermocouple Inputs
Symbol
Meaning
Danger
Warning
Caution
Caution
Description
The identified danger causes physical
and property damage.
The identified danger can cause
physical and property damage.
Use caution.
1

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Summary of Contents for Unitronics IO-ATC8

  • Page 1 ◼ 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.
  • Page 2 ◼ Do not allow debris to fall inside the unit during installation. Mounting the Module DIN-rail mounting Snap the device onto the DIN rail as shown below; the module will be squarely situated on the DIN rail. Unitronics Industrial Automation...
  • Page 3 Screw-Mounting The figure below is not drawn to scale. It may be used as a guide for screw-mounting the module. Mounting screw type: either M3 or NC6-32. 80mm (3.15") 5.8mm 68.4mm (0.228") (2.693") (0.16") 4mm (x2) (0.16") Unitronics Industrial Automation...
  • Page 4 Input or output cables should not be run through the same multi-core cable or share the same wire. ◼ Allow for voltage drop and noise interference with input lines used over an extended distance. Use wire that is properly sized for the load. Unitronics Industrial Automation...
  • Page 5 The adapter and the COM signals of the analog inputs must be connected to the same 0V signal. ◼ The COM signals of each channel are internally shorted. ◼ When set to current/voltage, each 2 inputs share a common COM signal. Unitronics Industrial Automation...
  • Page 6 Open the first side of the device by inserting the blade between the 2 plastic moldings as shown below, then gently pushing up. Taking care not to damage the cable, open the other side of the device by inserting the blade where shown below, then gently pushing up. Unitronics Industrial Automation...
  • Page 7 I / O E x p a n s i o n M o d u l e Gently remove the top of the device as shown. The jumpers are shown at right. Change the jumper settings as required, in accordance with the tables shown on the next page. Unitronics Industrial Automation...
  • Page 8 Caution ◼ Incompatible jumper settings and wiring may severely damage the device. Jumper # Thermocouple* Voltage Current Input 0 Input 1 Input 2 Input 3 Input 4 Input 5 Input 6 Input 7 * Default factory setting. Unitronics Industrial Automation...
  • Page 9 UG _ IO - ATC 8 I / O E x p a n s i o n M o d u l e IO-ATC8 Technical Specifications 40mA maximum from the adapter’s 5VDC Max. current consumption 0.2W@5VDC Typical power consumption...
  • Page 10 The voltage or current value of analog inputs can also indicate faults, as shown in the table below. Value: 12-bit Value: 14-bit Input Value (Fast mode) (Normal mode) Deviates: Slightly below the input range. 4096 16384 Slightly above the input range. 32767 32767 Greatly above or below the input range. Unitronics Industrial Automation...
  • Page 11 RO8 is always assigned the number 7. Its I/Os are addressed accordingly. Example ◼ Input #5, located on an EX90-DI8-RO8 connected to an OPLC will be addressed as I 149, 149 = 32 + 7 • 16 + 5 Unitronics Industrial Automation...
  • Page 12 Class I, Division 2, Groups A, B, C and D These Release Notes relate to all Unitronics products that bear the UL symbols used to mark products that have been approved for use in hazardous locations, Class I, Division 2, Groups A, B, C and D.
  • Page 13 The information in this document reflects products at the date of printing. Unitronics reserves the right, subject to all applicable laws, at any time, at its sole discretion, and without notice, to discontinue or change the features, designs, materials and other specifications of its products, and to either permanently or temporarily withdraw any of the forgoing from the market.

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