Spectrum Controls Micro 800 User manual

User’s Manual Pub. 0300308-02 Rev. A

ii Micro800TM 8-Channel Universal Analog Output Module
User’s Manual Pub. 0300308-02 Rev. A
Important Notes
1. Please read all the information in this owner’s guide before installing the
product.
2. The information in this owner's guide applies to hardware Series A and
firmware version 1.1 or later.
3. This guide assumes that the reader has a full working knowledge of the
relevant processor.
Notice
The products and services described in this owner's guide are useful in a wide
variety of applications. Therefore, the user and others responsible for applying
the products and services described herein are responsible for determining their
acceptability for each application. While efforts have been made to provide
accurate information within this owner's guide, Spectrum Controls, Inc. assumes
no responsibility for the accuracy, completeness, or usefulness of the information
herein.
Under no circumstances will Spectrum Controls, Inc. be responsible or liable for
any damages or losses, including indirect or consequential damages or losses,
arising out of either the use of any information within this owner's guide or the
use of any product or service referenced herein.
No patent liability is assumed by Spectrum Controls, Inc. with respect to the use
of any of the information, products, circuits, programming, or services referenced
herein.
The information in this owner's guide is subject to change without notice.
Limited Warranty
Spectrum Controls, Inc. warrants that its products are free from defects in
material and workmanship under normal use and service, as described in
Spectrum Controls, Inc.’s literature covering this product, for a period of 1 year.
The obligations of Spectrum Controls, Inc. under this warranty are limited to
replacing or repairing, at its option, at its factory or facility, any product which
shall, in the applicable period after shipment, be returned to the Spectrum
Controls, Inc. facility, transportation charges prepaid, and which after
examination is determined, to the satisfaction of Spectrum Controls, Inc. to be
thus defective.
This warranty shall not apply to any such equipment which shall have been
repaired or altered except by Spectrum Controls, Inc. or which shall have been
subject to misuse, neglect, or accident. In no case shall the liability of Spectrum
Controls, Inc. exceed the purchase price. The aforementioned provisions do not
extend the original warranty period of any product which has either been repaired
or replaced by Spectrum Controls, Inc.

Micro800TM 8-Channel Universal Analog Output Module iii
User’s Manual Pub. 0300308-02 Rev. A
Table of Contents
IMPORTANT NOTES ......................................................................................................................................................... II
CHAPTER 1 MODULE OVERVIEW.........................................................................................................................1-1
GENERAL DESCRIPTION .............................................................................................................................. 1-1
OUTPUT SPECIFICATIONS........................................................................................................................... 1-3
DATA FORMATS ....................................................................................................................................... 1-7
HARDWARE FEATURES............................................................................................................................... 1-7
1.4.1 LED Blink Codes......................................................................................................................................... 1-7
1.4.2 1.1 LED Operation ..................................................................................................................................... 1-7
1.4.3 2.1 LED Operation ..................................................................................................................................... 1-8
SYSTEM OVERVIEW AND MODULE OPERATION .............................................................................................. 1-9
CHAPTER 2 INSTALLATION AND WIRING.............................................................................................................2-1
COMPLIANCE TO EUROPEAN UNION DIRECTIVES............................................................................................. 2-1
2.1.1 EMC Directive............................................................................................................................................ 2-1
POWER REQUIREMENTS ............................................................................................................................ 2-1
GENERAL CONSIDERATIONS ........................................................................................................................ 2-2
2.3.1 Hazardous Location Considerations.......................................................................................................... 2-2
2.3.2 Prevent Electrostatic Discharge ................................................................................................................ 2-3
2.3.3 Remove Power .......................................................................................................................................... 2-3
2.3.4 Selecting a Location .................................................................................................................................. 2-3
MOUNTING ............................................................................................................................................. 2-4
2.4.1 Minimum Spacing ..................................................................................................................................... 2-4
2.4.2 Parts List ................................................................................................................................................... 2-4
2.4.3 Module Description................................................................................................................................... 2-5
2.4.4 Insert Module Next to the Controller........................................................................................................ 2-6
Wiring Diagram ................................................................................................................................................. 2-8
CHAPTER 3 CONFIGURING THE 2085SC-OF8 USING CCW ....................................................................................3-1
INTRODUCTION ........................................................................................................................................ 3-1
2085SC-OF8 AOP .................................................................................................................................. 3-2
CCW CONFIGURATION TAB........................................................................................................................ 3-4
SETTING CONFIGURATION PARAMETERS USING MCC .................................................................................... 3-7
3.4.1 Software Versioning................................................................................................................................ 3-12
3.4.2 Software Updates ................................................................................................................................... 3-12
3.4.3 Startup and Factory Default Conditions.................................................................................................. 3-12
PLC INTERFACES..................................................................................................................................... 3-13
3.5.2 Connection Types and Assembly Sizes .................................................................................................... 3-13
3.5.3 Input Table.............................................................................................................................................. 3-14
3.5.4 Module Status (AI_00) ............................................................................................................................ 3-15
3.5.5 Channel Output Status (AI_04:01) .......................................................................................................... 3-16
3.5.6 Data Ch<x> (AI_12:05) ............................................................................................................................ 3-17
3.5.7 Module Firmware Revision (AI_13)......................................................................................................... 3-17
3.5.8 Output Table ........................................................................................................................................... 3-18
3.5.9 Output Ch<x> (AO_07:00)....................................................................................................................... 3-18
3.5.10 Unlatch Alarm Bits ................................................................................................................................ 3-18
3.5.11 Configuration Table .............................................................................................................................. 3-19
3.5.12 Configuration Bit Definition .................................................................................................................. 3-20
3.5.13 Channel Configuration Bit Mapping ..................................................................................................... 3-22
3.5.14 Voltage/Current Output........................................................................................................................ 3-22
3.5.15 User Scaling/Data Format and Range .................................................................................................. 3-23

iv Micro800TM 8-Channel Universal Analog Output Module
User’s Manual Pub. 0300308-02 Rev. A
3.5.16 Fault Mode/Program Mode Operation................................................................................................. 3-23
3.5.17 Module Specific Hardware Errors ......................................................................................................... 3-24
3.5.18 Module Specific Configuration Errors ................................................................................................... 3-24
APPENDIX A MANUALLY IMPORTING AN AOP ....................................................................................................A-1
INDEX ..................................................................................................................................................................I-1

Micro800TM 8-Channel Universal Analog Output Module v
User’s Manual Pub. 0300308-02 Rev. A
Preface
Read this preface to familiarize yourself with the rest of the manual. This preface
covers the following topics:
•Who should use this manual
•How to use this manual
•Related documentation
•Technical support
•Documentation
•Conventions used in this manual
Who Should
Use This Manual
Use this manual if you are responsible for designing, installing, programming, or
troubleshooting control systems that use the Micro800TM 8-Channel Analog
Output Module.
NOTE
Before you access any equipment or begin to install any IO modules,
review all safety material and warnings in the Micro830, Micro850, and
Micro870 Programmable Controllers User Manual. Be sure to review the
warnings provided in this document before you start installing a module in
a system.
Keep in mind that Version 2.1 of the module firmware is required for
operation with 870 controllers.
How to Use
This Manual
As much as possible, we organized this manual to explain, in a task-by-task
manner, how to install, configure, program, operate and troubleshoot a control
system using the Micro800TM 8-Channel Analog Output Module.
Related
Documentation
The table below provides a listing of publications that contain important
information about Allen-Bradley Micro800 Expansion I/O Module systems.
For Refer to this Document
Allen-Bradley
Pub. No.
Product outline Micro850 Programmable Logic
Controller Product Profile 2080-PP003
Selection information
Micro800 Programmable
Controllers Family Selection
Guide
2080-SG001
General instructions for
using
Micro800 Programmable
Controllers General Instructions 2080-RM001
Installing an external
power supply
Micro800 External AC Power
Supply Installation Instructions 2080-IN001

vi Micro800TM 8-Channel Universal Analog Output Module
User’s Manual Pub. 0300308-02 Rev. A
For Refer to this Document
Allen-Bradley
Pub. No.
Micro870 24V DC Expansion
Power Supply Installation
Instructions
2085-IN008
Installing 24-point PLC
Micro850 24-Point
Programmable Controllers
Installation Instructions
2080-IN007
Installing 48-point PLC
Micro850 48-Point
Programmable Controllers
Installation Instructions
2080-IN008
Installing 24-point PLC
Micro870 24-Point
Programmable Controllers
Installation Instructions
2080-IN012
User manual information
Micro830, Micro850, and
Micro870 Programmable
Controllers User Manual
2080-UM002
Environment and
Enclosure Information
Industrial Automation Wiring and
Grounding Guidelines, Allen-
Bradley publication 1770-4.1, for
additional installation
requirements.
NEMA Standards publication 250
and IEC publication 60529, as
applicable, for explanations of the
degrees of protection provided by
different types of enclosure.
1770-4.1
NEMA 250-
2014
IEC 60529
Declarations of
conformity, certificates,
and other certification
details.
Product Certification website:
https://spectrumcontrols.com
Technical
Support
For technical support, please contact your local Rockwell Automation
TechConnect Office for all Spectrum products. Contact numbers are as follows:
•USA 440-646-6900
•United Kingdom 01908 635230
•Australia 1800-809-929
•Mexico 001-888-365-8677
•Brazil (55) 11 3618 8800
•Europe [phone]
or send an email to
[e-mail]
Documentation
If you would like a manual, you can download a free electronic version from the
Internet at www.spectrumcontrols.com

Micro800TM 8-Channel Universal Analog Output Module vii
User’s Manual Pub. 0300308-02 Rev. A
Conventions
Used in This
Manual
The following conventions are used throughout this manual:
•Bulleted lists (like this one) provide information not procedural steps.
•Numbered lists provide sequential steps or hierarchical information.
•Italic type is used for emphasis.
•Bold type identifies headings and sub-headings.
WARNING
Identifies information about practices or circumstances that can lead to
personal injury or death, property damage, or economic loss. These
messages help you to identify a hazard, avoid a hazard, and recognize the
consequences.
ATTENTION
Actions ou situations risquant d’entraîner des blessures pouvant être
mortelles, des dégâts matériels ou des pertes financières. Les messages «
Attention » vous aident à identifier un danger, à éviter ce danger et en
discerner les conséquences.
NOTE
Identifies information that is critical for successful application and
understanding of the product.

viii Micro800TM 8-Channel Universal Analog Output Module
User’s Manual Pub. 0300308-02 Rev. A

User’s Manual Pub. 0300308-02 Rev. A
Chapter 1
Module Overview
This chapter covers the following topics:
•General description
•Output specifications
•Data formats
•Hardware features
•System overview and module operation
The Micro800TM 8-Channel Analog Output Module is an 8-point analog output
module designed to expand the local I/O capability of Rockwell Automation
Micro850 and Micro870 Systems over its Expansion I/O buses. The minimum
system requirement in which an Expansion I/O Module can be installed is a
Micro850 or Micro870 Controller and a controller power supply.
The number of 2085sc-OF8 modules that can be installed with a Micro850/870
PLC is based on the current controller firmware revision and CCW software
revision.
General
Description

1-2 Chapter 1, Module Overview
User’s Manual Pub. 0300308-02 Rev. A
The 2085sc-OF8 Expansion I/O module provides current and/or voltage outputs.
The module supports:
•Eight output channels. The module outputs either voltage or current
signals for each channel.
•Current output. When the module receives a new command value from
the output image, the module converts the digital value to an analog
current signal using a Digital to Analog Converter (DAC).
•Voltage output. When the module receives a new command value from
the output image, the module’s circuitry converts the digital value to an
analog voltage signal using a Digital to Analog Converter (DAC).
•Output fault detection.
•Range scaling of output data.
•Over or under voltage detection (from user-defined values).
•Four data formats.
All outputs have fault tolerance and ESD protection to avoid damage to circuitry
on the board. The modules use 50 VAC working Reinforced Insulation between
the output channels and the backplane. Individual channels are not isolated from
each other.
The 2085sc-OF8 module uses a 16-bit digital-to-analog converter to achieve a
16-bit resolution with ±10 V full scale ranges. The module also uses 8 separate
output drivers to provide for either current or voltage output signals on each
channel. Each output channel is individually configured via Rockwell-provided
Connected Component Workbench (CCW) software for Micro850 and Micro870
family controllers or with the Module Configuration Converter (MCC) utility
from Spectrum Controls, Inc.
The module is factory calibrated and tested before shipping. After installation,
the modules begin operation in a default, usable condition. During startup, all
outputs are disabled and off until a valid configuration has been received. Default
configuration is 4 to 20 mA.
The module normally requires no further user intervention. However, if the
module experiences a hard fault condition, you may need to cycle power.

Chapter 1: Module Overview 1-3
User’s Manual Pub. 0300308-02 Rev. A
Output
Specifications
The 2085sc-OF8 module has the following output specifications:
Table 1-1. Output/Performance/Environmental Requirements
Output Description Value
Operating Temperature -20 ºC to 65 ºC (-4 ºF to 149 ºF)
Storage/Non-Operating
Temperature -40 ºC to 85 ºC (-40 ºF to 203 ºF)
Operating Humidity 5% to 95%, non-condensing
Storage/Non-Operating
Humidity 5% to 85%, non-condensing
Vibration/Operating 10 Hz to 500 Hz, 2 g, 0.030 max peak-to-peak
Operating Shock 25 g, peak acceleration, 11±1 ms pulse, half sine
Storage/Non-Operating Shock 25 g peak acceleration, (35 g for panel mount), 11±1 ms pulse,
half sine
Pollution Level Meets Pollution Degree 2 requirements.
ESD Meets CE requirements for operating ESD category B at 6 kV
indirect (coupling plate).
Radiated Immunity
10 V/M with 1 kHz sine-wave 80% AM from 80…6000 MHz
10 V/M with 200 Hz square-wave 50% Pulse 100% AM at 900
MHz
10 V/M with 200 Hz square-wave 50% Pulse 100% AM at 1890
MHz
Outputs per module 8 current or voltage outputs.
Output ranges1
Current:
0-20 mA (0-20.4 mA hardware support range)
4-20 mA (3.92-20.4 mA hardware support range)
Voltage:
0-5 V (Over range is 0 V to 5.25 V)
0-10 V (Over range is 0 V to 10.5 V)
±10 V (Over range is -10.5 V to +10.5 V)
Current output impedance Greater than 1 Mohm
Voltage output impedance Less than 1 ohm
Output Overvoltage Protection ±24 VDC
1The load on each channel must be within the range of 50-500 Ohm in current mode and greater than 1 kOhm in
voltage mode.

1-4 Chapter 1, Module Overview
User’s Manual Pub. 0300308-02 Rev. A
Output Description Value
Output Short Circuit Protection
in current mode
Current outputs are electronically current limited to 20.4 mA or
less with no damage
Output short circuit protection
in voltage mode Output current will be limited at 15 mA
Resolution in current mode 750 nA/bit
Resolution in voltage mode 735 uV/bit
Field Power Input Voltage
Range 20.4 V to 26.4 V
Peak Inrush Current
Less than 150 mA at 5 V (backplane)
Less than 400 mA at 24 V (backplane)
Less than 900 mA at 24 V (field power)
Current accuracy
(calibrated) Error at 25 °C, Max Error over -20 °C to 65 °C, Max
0-20 mA ±50.0 µA ±75.0 µA
4-20 mA ±50.0 µA ±75.0 µA
Voltage accuracy
(calibrated) Error at 25 °C, Max Error over -20 °C to 65 °C, Max
0-5 V ±5.0 mV ±15.0 mV
0-10 V ±20.0 mV ±50.0 mV
±10 V ±20.0 mV ±50.0 mV
Output Current Repeatability At 25 °C
0-20 mA Better than ±5.0 µA
4-20 mA Better than ±5.0 µA
Output Voltage Repeatability At 25 °C
0-5 V Better than ±0.5 mV
0-10 V Better than ±2.0 mV
±10 V Better than ±2.0 mV
Module Scan Time (for all
analog channels) Less than 10 ms
Drive Capability 50 to 500 Ohm with short-circuit survival in current mode
Better than or equal to 1 kOhm in voltage mode
Load Reactance 100 µH max in current mode
Less than 1 µF in voltage mode
Output Settling Time:
Current Output Less than 2.5 ms to 63% of full scale with resistive loads
Output Settling Time:
Voltage Output Less than 2.5 ms to 63% of full scale with resistive loads

Chapter 1: Module Overview 1-5
User’s Manual Pub. 0300308-02 Rev. A
Output Description Value
Output Ripple Less than 15 mV in voltage mode
Less than 30 µA in current mode
Isolation
Input to backplane isolation 50 VAC working Reinforced isolation tested at 2 kVDC for 1
minute.
Input to Chassis GND isolation 50 VAC working Reinforced isolation tested at 2 kVDC for 1
minute.
Fault detection
Over temperature detection is supported in both current and
voltage modes (over 150 °C).
Open Circuit current loop detection is supported on each channel
in current mode. A load resistance greater than 500 Ohm also
triggers this fault.
A short on an output pin in voltage mode will be detected, and
output current will be limited to less than 15 mA. A load less than
1 kOhm resistance also triggers this fault.
Power Requirements
Bus +5 VDC (4.75 V to 5.4 V) 110 mA maximum (0.55 W) at 50 Ohm resistance load on all
channels.
Bus +24 VDC (19.9 V to 26.4 V) 20 mA maximum (24 V from backplane, [0.48 W]).
Field 260 mA maximum (24 V from backplane, [6.24 W]).
Power Dissipation (Current
mode)
Less than 4.3 W at 500 Ohm
Less than 5 W at 250 Ohm
Less than 5.5 W at 50 Ohm
Wire size #16 to #28 AWG
RoHS Meets European RoHS component standards (January 2015 and
earlier).
Wire Strip Length 0.25 in.
Recommended Tightening
Torque: 0.25 N-m (2.2 lb-in)
REACH Meets European REACH 7 requirements.
Dimensions
110 mm × 87 mm × 51 mm (plastic only).
(4.33 in × 3.43 in × 2.00 in)
110 mm × 89 mm × 51 mm (with RTBs installed).
(4.33 in × 3.5 in × 2.00 in)

1-6 Chapter 1, Module Overview
User’s Manual Pub. 0300308-02 Rev. A
Table 1-2 EMC Specification Table
Environmental Tests Test Level Limits
Radiated Emissions (Enclosure) Class A, 30 MHz – 1 GHz
Conducted Emissions Group 1, Class A (AC Mains), 150 kHz – 30 MHz
ESD immunity
(Performance Criteria B)
6 kV Indirect (Coupling Plate)
6 kV Contact Discharge (to points of initial contact)
8 kV Air Discharge (to points of initial contact)
Radiated RF immunity
(Performance Criteria A)
10 V/M with 1 kHz sine-
wave 80% AM from 80…6000 MHz
10 V/M with 200 Hz square-wave 50% Pulse 100% AM at
900 MHz
10 V/M with 200 Hz square-wave 50% Pulse 100% AM at
1890 MHz
EFT/B immunity
(Performance Criteria B)
Signal Ports:
± 2 kV at 5 kHz for 5 minutes, Criteria B
Power Ports:
± 2 kV at 5 kHz for 5 minutes, Criteria B
Surge transient immunity
(Performance Criteria B)
Signal Ports:
± 2 kV line-earth {CM}at 2Ω on shielded ports
Power Ports
±2 kV CM at 12 Ω
±1 kV DM at 2 Ω
Conducted RF immunity
(Performance Criteria A)
10 V RMS with 1 kHz sine wave 80% AM from 150
kHz…80 MHz on signal and power ports
Magnetic Field
(Performance Criteria A) 30 Arms/m
AC Mains Voltage Dips, Interruptions
and Variations Follow the 61000-4-11.

Chapter 1: Module Overview 1-7
User’s Manual Pub. 0300308-02 Rev. A
Table 1-3. Safety Test Specification Table
Safety Tests Industry Standards
UL Safety
UL 61010-2-201 Safety Requirements for Electrical Equipment for
Measurement, Control, and Laboratory Use–Part 2-201: Particular
Requirements for Control Equipment (NRAQ, NRAQ7)
cUL CAN/CSA C22.2 No. 61010-1-12 (Safety Requirements for Electrical
Equipment for Measurement, Control,
and Laboratory Use–Part 1: General Requirements)
UL Hazardous
Locations
ULH ANSI/ISA–12.12.01–2007 Nonincendive Electrical Equipment for Use
in Class I, Division 2 Hazardous (Classified) Locations (NRAG)
cULH CSA C22.2 No. 213-M1987–Non-incendive Electrical Equipment for
use in Class I Division 2 Hazardous Locations–March 1987 (NRAG7)
Temp, Pollution degree 2, gas groups a, b, c, and d.
CE EMC Directive
IEC 61131-2 Programmable Controllers: Third Edition 2007-02, Clause 8
IEC 61000-6-2: Generic Industrial Immunity
IEC 61000-6-4: Generic Industrial Emissions
Data Formats
The data format and range parameters in the channel configuration bits determine
the scaling. There are four pre-defined settings:
•Engineering units
•Scaled-for-PID
•Raw/proportional data
•Percent of full range
Hardware Features
Channels are wired as outputs. This module can detect open circuit current loop
on each channel in current mode, short on an output pin in voltage mode, and
over temperature conditions in both current and voltage modes. Outputs are
protected from electrostatic discharge up to 6 kV for indirect and contact
discharge, 8 kV for air discharge. A load resistance greater than 500 Ohm also
triggers this fault.
A short on an output pin in voltage mode is also detected, and output current is
then limited to less than 15 mA. A load less than 1 kOhm resistance also triggers
this fault.
1.4.1 LED Blink Codes
Revision 1.1 and Revision 2.1 of the Module firmware use different LED status
operations for module status or power indication. Tables for 1.1 and 2.1 LED
operation are provided below.
1.4.2 1.1 LED Operation
When startup is completed, and all internal tests have passed, the LED is solid

1-8 Chapter 1, Module Overview
User’s Manual Pub. 0300308-02 Rev. A
GREEN. If the LED remains off, there is an error with the module: it may not
have power, or the module failed to pass the self-test.
Table 1-4 LED Blink Codes for Firmware 1.1
Indicator State Description
Module OK
LED Status
Off No power applied to device or the module may have
failed to pass its self-test.
Solid
Green
RUN mode. Module has power and passed self-test.
No action is required.
Blinking
Green
LED blink status:
1. Internal use only.
2. Internal use only.
3. Internal use only.
4. Internal use only.
5. Indicates ADC communication error.
6. Indicates Watchdog reset.
1.4.3 2.1 LED Operation
A 2085sc-OF8 module with Version 2.1 firmware uses a single, green OK LED
to show power or module operational status:
•When startup is completed, and all internal tests have passed, the LED is
solid GREEN. This indicates RUN mode.
•If the LED remains off, there is an error with the module: it may not have
power or failed to pass the self-test.
•Any time the system is not in Run mode (and showing no faults), the
LED blinks rapidly, indicating the module is Offline. All inputs and
outputs are disabled in this instance.
The LED identifies different conditions using specific, numeric, blink patterns.
The module blinks a specific number of times, pauses, and then repeats the same
blink pattern indefinitely. Blink codes are shown in the following table.
Table 1-5 LED Blink Codes Table for Firmware 2.1
Blink
Code Name and Description Resolution
rapid
Offline
Rapid continuous blinking indicates the
module is offline and outputs are
disabled.
Set controller to RUN mode.
This will also be seen during power-on while it is
initializing.
ON Run Mode
The LED is solid green.
Module is initialized with no hardware fault
detected. Module is in Run mode.

Chapter 1: Module Overview 1-9
User’s Manual Pub. 0300308-02 Rev. A
Blink
Code Name and Description Resolution
OFF
Major Fault or Power-up or Power Off
The module is just powering up and not
initialized yet or there is a major
hardware fault causing the module to be
held in reset by the controller. LED
control is not possible for this condition
and will remain off.
Give plenty of time for power-on.
Power-cycle to try and clear the error condition. If
unsuccessful, the module must be replaced.
3
Calibration invalid or corrupted
This code will be seen for newly
manufactured boards that have yet to be
calibrated.
Factory calibration must be performed.
Return the module to Spectrum Controls, Inc. for
recalibration.
4
Serial Number Invalid or Corrupted
This code will only be seen if the
module has been calibrated but the serial
number is not programmed, or the flash
memory sector is corrupted.
Serial number must be programmed.
Return the module to Spectrum Controls, Inc. for
recalibration.
5
Analog Communications Error – Input
A communications error or connection
error took place between the MCU and
ADC or PGA circuitry.
Power-cycle to try and clear the error condition. If
unsuccessful, the module must be replaced.
System
Overview and
Module Operation
The 2085sc-OF8 module is expected to operate indefinitely. It does not require
periodic maintenance or calibration. The 24 VDC field power supply must be
present to allow for outputs from the module channels.
WARNING
Hazard of damage to module.
When multiple channels are configured in voltage mode, and an external
24 V power source is applied to the channels via the terminal block, there
is the possibility that the module will be damaged if multiple channels
simultaneously experience over voltage conditions.
This is because the heating caused by the overvoltage condition will apply
to a very small area and may result in damage to that area.
The module communicates to the controller through the bus interface. The
module also receives 5 and 24 VDC through the bus interface.

1-10 Chapter 1, Module Overview
User’s Manual Pub. 0300308-02 Rev. A
Block diagram:
I sol at or
I sol at ed
DC-DC
Con verte r
V/I OUTx
RTNx
Backplane
ASIC
Backplane
Com mun ic ati on .
.
x8
output
c han ne ls
Processor
50 VA C
W ork i ng
Reinforced
Isolation
5V DC
24V DC
(used by backplane
circuitry)
Sta tu s
Indicat or
2085 Backplane
8 Ch. D/A
Con verte r
Wa tc hdo g
monitor
x8
RTB pi n s
+24V DC Field
Power
Field GND/
IGND
8 Output
Channels
Voltage/
Current
D ri ver
&
Protection
Field Power
(non-is ol ate d)
Supply
Voltage
Monitor

User’s Manual Pub. 0300308-02 Rev. A
Chapter 2
Installation and Wiring
This chapter will cover:
•Compliance to European union directives
•Power requirements
•General considerations
•Mounting
Compliance to
European
Union Directives
This product is approved for installation within the European Union and EEA
regions. It has been designed and tested to meet the following directives.
2.1.1 EMC Directive
The 2085sc-OF8 modules are tested to meet Council Directive 2014/30/EU
Electromagnetic Compatibility (EMC) and the following standards, in whole or
in part, documented in a technical construction file:
•IEC 61000-6-4 Electromagnetic compatibility (EMC)–Part 6-4: Generic
standards–Emission standard for industrial environments
•IEC 61000-6-2 Electromagnetic compatibility (EMC)–Part 6-2: Generic
standards–Immunity for industrial environments
•EN 61131-2 Programable controllers - Part 2: Equipment requirements
and tests
Power
Requirements
WARNING
The backplane power and the analog inputs of the device shall only be
supplied by an Isolated Secondary Limited Energy Low Voltage source.
The module receives power through the bus interface from the +5 VDC (4.75 V
to 5.4 V)/±24 VDC (19.9 V to 26.4 V) system power supply, and a 24 VDC field
power supply. Both must be present for the module to operate.

2-2 Chapter 2: Installation and Wiring
User’s Manual Pub. 0300308-02 Rev. A
Backplane current ratings: + 5 V rail is 85 mA maximum at 5 VDC; +24 V rail it
is 10 mA maximum at 24 VDC:
5 VDC 24 VDC
85 mA 10 mA
Field Power current rating is 195 mA at 24 VDC.
General
Considerations
The 2085sc-OF8 module is suitable for use in an industrial environment when
installed in accordance with these instructions. Specifically, this equipment is
intended for use in clean, dry environments (Pollution degree 22).
2.3.1 Hazardous Location Considerations
This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D or
non-hazardous locations only. The following WARNING statement applies to
use in hazardous locations.
WARNING
EXPLOSION HAZARD
•Substitution of components may impair suitability for Class I,
Division 2; Class II, Division 2. Do not replace components or
disconnect equipment unless power has been switched off or the
area is known to be non-hazardous.
•Do not connect or disconnect components unless power has been
switched off or the area is known to be non-hazardous.
•This product must be installed in an enclosure.
All wiring must comply with N.E.C. article 501-4(b), 502-4(b), or 503-
3(b), as appropriate for Class I, Class II, and Class III equipment.
2Pollution Degree 2 is an environment where, normally, only non-conductive pollution occurs except that occasionally
a temporary conductivity caused by condensation is expected.