Spectrum Controls 2085sc-IF8U User manual

User’s Manual Pub. 0300305-01 Rev. A
Micro850TM
8-Channel Universal Analog
Input Module
Catalog Numbers: 2085sc-IF8U

ii Micro850TM 8-Channel Universal Analog Input Module
User’s Manual Pub. 0300305-01 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.

Micro850TM 8-Channel Universal Analog Input Module iii
User’s Manual Pub. 0300305-01 Rev. A
Table of Contents
IMPORTANT NOTES............................................................................................................................................ II
CHAPTER 1 MODULE OVERVIEW ..................................................................................................................... 1-1
SECTION 1.1 GENERAL DESCRIPTION .............................................................................................................................. 1-1
SECTION 1.2 INPUT SPECIFICATIONS............................................................................................................................... 1-3
SECTION 1.3 DATA FORMATS ....................................................................................................................................... 1-9
SECTION 1.4 HARDWARE FEATURES .............................................................................................................................. 1-9
1.4.1 LED Indicators ........................................................................................................................................... 1-9
SECTION 1.5 SYSTEM OVERVIEW ................................................................................................................................. 1-10
CHAPTER 2 INSTALLATION AND WIRING.......................................................................................................... 2-1
SECTION 2.1 COMPLIANCE TO EUROPEAN UNION DIRECTIVES............................................................................................. 2-1
2.1.1 EMC Directive............................................................................................................................................ 2-1
SECTION 2.2 POWER REQUIREMENTS ............................................................................................................................ 2-1
SECTION 2.3 GENERAL CONSIDERATIONS ........................................................................................................................ 2-2
2.3.1 Hazardous Location Considerations.......................................................................................................... 2-2
2.3.2 Prevent Electrostatic Discharge ................................................................................................................ 2-2
2.3.3 Remove Power .......................................................................................................................................... 2-3
2.3.4 Selecting a Location .................................................................................................................................. 2-3
SECTION 2.4 MOUNTING ............................................................................................................................................. 2-3
2.4.1 Minimum Spacing ..................................................................................................................................... 2-4
2.4.2 Parts List ................................................................................................................................................... 2-4
2.4.3 Module Description................................................................................................................................... 2-4
2.4.4 Insert Module into the Controller ............................................................................................................. 2-4
Wiring Diagram ................................................................................................................................................. 2-7
CHAPTER 3 CONFIGURING THE 2085SC-IF8U USING CCW ................................................................................. 3-1
SECTION 3.1 INTRODUCTION ........................................................................................................................................ 3-1
SECTION 3.2 IMPORTING A PROFILE INTO CCW SOFTWARE ................................................................................................ 3-2
SECTION 3.3 SETTING CONFIGURATION PARAMETERS USING MODULECONFIGCONVERTER.EXE ............................................... 3-5
3.3.1 Software Versioning.................................................................................................................................. 3-9
3.3.2 Software Updates ..................................................................................................................................... 3-9
3.3.3 Startup and Factory Default Conditions.................................................................................................... 3-9
3.3.4 PLC Interfaces ......................................................................................................................................... 3-10
3.3.5 Connection Types and Assembly Sizes .................................................................................................... 3-11
3.3.6 Channel Configuration Bit Location Data ............................................................................................... 3-12
3.3.7 Temperature Scale Description............................................................................................................... 3-23
3.3.8 Output Assembly..................................................................................................................................... 3-23
3.3.9 Module Error........................................................................................................................................... 3-23
3.3.10 Mod_Condition Array Word 0 bit fields ................................................................................................ 3-24
3.3.11 Module Specific Hardware Errors ......................................................................................................... 3-24
3.3.12 Module Specific Configuration Errors ................................................................................................... 3-25
SECTION 3.4 TECHNICAL ASSISTANCE ........................................................................................................................... 3-25
SECTION 3.5 DECLARATION OF CONFORMITY ................................................................................................................ 3-25
INDEX .............................................................................................................................................................. I-1

iv Micro850TM 8-Channel Universal Analog Input Module
User’s Manual Pub. 0300305-01 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 publications
Conventions used in this manual
Technical support
Who Should
Use This Manual
Use this manual if you are responsible for designing, installing, programming, or
troubleshooting control systems that use the Micro850TM 8-Channel Universal
Analog Input Module.
NOTE
Before you access any equipment or begin to install any IO
modules, review all safety material and warnings in the Micro830
and Micro850 Programmable Controllers User Manual. Also be
sure to review the warnings provided in this document before you
start installing a module in a system.
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 Micro850TM 8-Channel Universal Analog Input Module.
Related
Documentation
The table below provides a listing of publications that contain important
information about Allen-Bradley MicroLogix 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
Installing 24-point PLC
Micro850 24-Point
Programmable Controllers
Installation Instructions
2080-IN007

Micro850TM 8-Channel Universal Analog Input Module v
User’s Manual Pub. 0300305-01 Rev. A
For
Refer to this Document
Allen-Bradley
Pub. No.
Installing 48-point PLC
Micro850 48-Point
Programmable Controllers
Installation Instructions
2080-IN008
User manual information
Micro830 and Micro850
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 60259
Declarations of
conformity, certificates,
and other certification
details.
Product Certification website:
http://spectrumcontrols.com
If you would like a manual, you can:
Download a free electronic version from the internet at
www.spectrumcontrols.com
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
Used to identify critical information for you and the
installation.
NOTE
Used to identify useful tips and hints.

vi Micro850TM 8-Channel Universal Analog Input Module
User’s Manual Pub. 0300305-01 Rev. A

User’s Manual Pub. 0300305-01 Rev. A
Chapter 1
Module Overview
The Micro850TM 8-Channel Universal Analog Input Module (2085sc-IF8u
Expansion I/O Module) is an 8-point universal analog module designed to
expand the local I/O or communication capability of a Rockwell Automation
Micro850 System. The minimum configuration in which an expansion module
can be installed is a Micro850 Controller and a power supply.
Section 1.1
General
Description

1-2 Chapter 1, Module Overview
User’s Manual Pub. 0300305-01 Rev. A
The 2085sc-IF8u Expansion I/O module measures current, voltage,
thermocouple, and RTD and resistance signals. The module supports:
Eight input channels.
Current measurements. The module measures the channel input
current across a low-drift precision resistor. To measure the voltage
and convert the voltage to a current reading, you install an external
jumper between the current and voltage points (CI_X and VI_X) on
the terminal block.
Direct voltage measurements. The low-drift precision resistor is not
used, and the channel accepts the voltage source directly.
Open-wire detection for current measurement on the 4-20 mA range,
voltage, and thermocouple measurements.
Direct thermocouple. In thermocouple mode, the thermocouple
measurements can be compensated with the reading from a single
Cold Junction Compensation (CJC) sensor placed in the center of the
terminal block. The module measures thermocouple and Cold
Junction Compensation sensor voltages, and converts the results to a
temperature reading.
One Cold Junction Compensation profile (averaged and distributed)
is supplied.
Resistance (direct Ohm).
RTD types. The RTD and resistance measurements use a constant
current injected through the resistive load, measuring the voltage
across the resistance, and converting the voltage to a temperature or
resistance reading. RTD and resistance input types support 2- or 3-
wire resistance measurements.
Four data formats.
Four filter frequency setup.
Real-time Terminal Block temperature updating when the channel is
enabled.
Range scaling of input data.
Over or under range detection (from user-defined values).
Channel bias adjustments for each channel.
An option to disable open-wire detection for volt, millivolt, and
thermocouple measurements.
All inputs have fault tolerance and ESD protection to avoid damage to circuitry
on the board. The modules use 50 VAC working Reinforced Insulation between
the inputs and the backplane, and low-level (10 VDC) channel-to-channel
isolation.
The 2085sc-IF8u module uses a 24-bit Sigma-Delta analog-to-digital converter to
achieve a 16-bit resolution with ±10 V full scale ranges. The module digitally
converts and stores analog data from either the current or voltage input type.
Each input channel is individually configured via Rockwell-provided Connected
Component Workbench (CCW) software for the Micro850 family of PLC
controllers, and with the Module Configuration Converter utility from Spectrum
Controls, Inc.

Chapter 1: Module Overview 1-3
User’s Manual Pub. 0300305-01 Rev. A
The module is factory calibrated and tested before shipping. After installation,
the modules begin operation in a default, usable condition. The default
configuration for the 2085sc-IF8u is for all channels enabled in the 4 to 20 mA
range with the 17 Hz filter in Engineering ×1 units.
Section 1.2
Input Specifications
The 2085sc-IF8u module has the following input specifications:
Table 1-1. Input/Performance/Environmental Requirements
Input 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, 11±1 ms pulse, half sine; 35 g for panel
mount.
Pollution Level
Meets Pollution Degree 2 requirements.
ESD
Meets CE requirements for operating ESD category B at 6 kV
contact, 8 kV air.
Radiated Immunity
10 V/M with 200 Hz square-wave 50% Pulse 100% AM at 900
and at 1890 MHz
10 V/M with 1 kHz sine-wave 80% AM from 80…2000 MHz
10 V/M with 1 kHz sine-wave 80% AM from 2000…6000 MHz
Inputs per module
8 current, voltage, thermocouple, resistance, or RTD differential
input channels.
Input ranges
Current:
0-20 mA, 4-20 mA
Voltage:
±50 mV, ±100 mV, 0-5 V, 0-10 V, ±10 V
RTD:
100 Ω, 200 Ω, 500 Ω and 1000 Ω PT385 and Pt3916,
100 Ω Ni618 and Ni672, 10 Ω Cu 426, 604 Ω NiFe 518
Resistance:
0-150 Ω, 0-500 Ω, 0-1000 Ω, 0-3000 Ω
Thermocouple:
Type J, N, T, K, E, S, R, C, B
Input filters
4 Hz, 17 Hz, 60 Hz, 470 Hz
Current accuracy
(4 and 17 Hz filters)
Error at 25 °C, Max
Error over -20 °C to 65 °C, Max
0-20 mA
±20 µA
±50 µA

1-4 Chapter 1, Module Overview
User’s Manual Pub. 0300305-01 Rev. A
Input Description
Value
4-20 mA
±20 µA
±50 µA
Voltage accuracy
(4 and 17 Hz filters)
Error at 25 °C, Max
Error over -20 °C to 65 °C, Max
±60 mV
±20 µV
±50 µV
±120 mV
±20 µV
±100 µV
0-5 V
±3 mV
±6 mV
0-10 V
±10 mV
±20 mV
±10 V
±10 mV
±20 mV
RTD accuracy
Error at 25 °C, Max
Error over -20 °C to 65 °C, Max
100 Ω PT385 -200 C to 850 C
±0.6
±2.2
200 Ω PT385 -200 C to 850 C
±0.5
±1.7
500 Ω PT385 -200 C to 850 C
±0.5
±1.6
1000 Ω PT385 -200 C to 850 C
±0.5
±1.6
100 Ω PT3916 -200 C to 850 C
±0.6
±1.6
200 Ω PT3916, -200 C to 630 C
±0.5
±1.3
500 Ω PT3916, -200 C to 630 C
±0.5
±1.2
1000 Ω PT3916, -200 C to 630 C
±0.5
±1.2
100 Ω Ni618, -100 C to 260 C
±0.6
±0.8
120 Ω Ni672, -80 C to 260 C
±0.6
±0.8
10 Ω Cu 426, -100 C to 260 C
±3.0
±5.0
604 Ω NiFe 518, -100 C to 200 C
±0.3
±0.5
Resistance accuracy
Error at 25 °C, Max
Error over -20 °C to 65 °C, Max
0 to 150 Ω
±0.2
±0.3
0 to 500 Ω
±0.55
±0.8
0 to 1 kΩ
±1.0
±1.3
0 to 3 kΩ
±1.5
±3.5
Thermocouple accuracy
These limits do not include the cold
junction compensation or sensor
error. They must be included
(added) to determine overall
thermocouple accuracy.
Error at 25 C, (Ohms)
Typical, Max
Error over -20 C to 65 C,
(Ohms) Typical, Max
Type J (-210 C to 1200 C)
±0.4 C, ±0.6 C
±0.5 C, ±1.6 C
Type N (-150 C to 1300 C)
±0.4 C, ±0.7 C
±0.5 C, ±1.3 C
Type N (-210 C to -150 C)
±0.8 C, ±1.5 C
±1.0 C, ±2.2 C
Type T (-230 C to 400 C)
±0.6 C, ±1.0 C
±0.7 C, ±1.5 C

Chapter 1: Module Overview 1-5
User’s Manual Pub. 0300305-01 Rev. A
Input Description
Value
Type T (-270 C to -230 C)
±3.5 C, ±8.0 C
±3 C, ±14.0 C
Type K (-225 C to 1370 C)
±1.1 C, ±1.5 C
±1.2 C, ±2.1 C
Type K (-270 C to -225 C)
±6.0 C, ±15.0 C
±7.0 C, ±20.0 C
Type E (-210 C to 1000 C)
±0.4 C, ±0.6 C
±0.5 C, ±1.2 C
Type E (-270 C to -210 C)
±3.0 C, ±6.0 C
±3.5 C, ±10.0 C
Type S (0 °C to 1768.1 °C)
±1.2 C, ±2.0 C
±1.0 C, ±2.6 C
Type R (0 °C to 1768.1 °C)
±1.2 C, ±2.0 C
±1.0 C, ±2.6 C
Type B (300 °C to 1820 °C)
±2.1 C, ±4.0 C
±1.8 C, ±4.5 C
Type C (0 °C to 2315 °C)
±0.8 C, ±1.8 C
±1.0 C, ±4.0 C
CJC Sensor Range
-20 C to 90 C
Error over 0 ºC to 70 ºC
CJC values
Error over -20 ºC to 70 ºC CJC
values
CJC Profile accuracy
±2.1 ºC maximum (Correlation between reading and target
terminal). Accuracy is typically within ±1 ºC.
CJC Sensor accuracy
±0.2 ºC
±0.4 ºC
CJC Measurement accuracy
±0.2 ºC
±0.5 ºC
CJC Total accuracy
(Sum of three items above)
±2.5 ºC
±3.0 ºC
Repeatability (at 25º C)
4 Hz filter
17 Hz filter
60 and 470 Hz filters1
Input Description
Value
Thermocouples
Type J
±0.2 °C
±0.4 °C
±3.0 °C
Type N (-150 C to 1300 C)
±0.2 °C
±0.2 °C
±4.0 °C
Type N (-210 C to -150 C)
±0.2 °C
±0.3 °C
±7.5 °C
Type T (-170 C to 400 C)
±0.2 °C
±0.2 °C
±3.3 °C
Type T (-270 C to -170 C)
±0.5 °C
±0.6 °C
±20.0 °C
Type K (-170 C to 1370 C)
±0.2 °C
±0.4 °C
±3.8 °C
Type K (-270 C to -170 C)
±2.0 °C
±3.5 °C
±20.0 °C
Type E (-220 C to 1000 C)
±0.2 °C
±0.4 °C
±2.4 °C
Type E (-270 C to -220 C)
±1.0 °C
±1.5 °C
±20.0 °C
Types S and R
±0.4 °C
±0.6 °C
±12.0 °C
1These filters do not reject 50/60 Hz. Repeatability for these filters is strongly dependent on how much
50/60Hz noise is in the system.

1-6 Chapter 1, Module Overview
User’s Manual Pub. 0300305-01 Rev. A
Input Description
Value
Type B
±0.3 °C
±0.4 °C
±20.0 °C
Type C
±0.2 °C
±0.3 °C
±6.7 °C
Millivolt Inputs
±15.0 µV
±20.0 µV
±40.0 µV
Voltage Inputs
±1.0 mV
±2.0 mV
±3.0 mV
Current Inputs
±2.0 µA
±3.0 µA
±10.0 µA
RTD
Platinum 385
±0.3 °C
±0.4 °C
±2.0 °C
Platinum 3916
±0.3 °C
±0.4 °C
±2.0 °C
Copper
±0.3 °C
±0.3 °C
±2.6 °C
Nickel
±0.1 °C
±0.2 °C
±1.0 °C
Nickel-Iron
±0.1 °C
±0.1 °C
±0.5 °C
Resistance
0 to 150 Ohm
±0.05 Ω
±0.1 Ω
±0.5 Ω
0 to 500 Ohm
±0.08 Ω
±0.15 Ω
±0.7 Ω
0 to 1 kOhm
±0.1 Ω
±0.2 Ω
±1.5 Ω
0 to 3 kOhm
±0.2 Ω
±0.3 Ω
±2.0 Ω
Filters
CMRR
84 dB minimum at 50 and 60 Hz for 4 Hz and 17 Hz filters
NMRR
4 Hz filter
72 dB minimum at 50 and 60 Hz
17 Hz filter
62 dB minimum at 50 and 60 Hz
Crosstalk
-70 dB maximum
Cable resistance
(applies only to 3-wire RTD and
resistance measurements)
25 Ω maximum, 10 Ω maximum for 10 Ω Cu 426
Input and Bias Current Impedance
Open Wire Detection Current
(Voltage and thermocouple range
only)
Approximately 28 µA during open wire checks for one channel
scan time with 470 Hz filter
Current input impedance
249.5 Ω ±0.5%
Voltage input impedance
>30 MΩ (except during open wire checks)
RES/RTD Current source
(excitation current)
Excitation Current*
Range
1 mA
10 Ω Copper 426
420 µA
150 Ω, 500 Ω, 1000 Ω, 100 Ω Ni
618, 120 Ω Ni 672, 100 Ω PT 385,
200 Ω PT 385, 100 Ω PT 3916,
200 Ω PT 3916

Chapter 1: Module Overview 1-7
User’s Manual Pub. 0300305-01 Rev. A
Input Description
Value
210 µA
3000 Ω, 500 Ω PT 385, 1000 Ω PT
385, 500 Ω PT 3916, 1000 Ω PT
3916, 604 Ω NiFe 518
* typically ±5% at 25 °C, ±8% from -20 °C to 65 °C
Input protection:
Voltage Mode ±28 VDC continuous. (Note: maximum voltage
between any two pins must be limited to 28 VDC as well.) For
proper operation, do not connect any external voltages to the
CJC pins.
Current mode 32 mA continuous (approximately 8 V).
Isolation
Input to backplane isolation
50 VAC RMS working Reinforced isolation tested at 2 kVDC
for 1 minute.
Input to Chassis GND isolation
50 VAC RMS working Reinforced isolation tested at 2 kVDC
for 1 minute.
Channel-to-channel, low-level
isolation
10 VDC measured between the IN-leads. Maximum voltage
between any two pins must be limited to 28 VDC. CJC input
pins are not designed to be attached to external voltages.
Fault detection
Over/under range for all types.
Open Circuit detection is supported on all ranges except the 0-20
mA range. You may disable fault detection for volt, millivolt,
and thermocouple measurements.
Note: Voltage and Thermocouple open circuit (open wire) is
periodically checked to keep input impedance high during
normal measurements.
Power Requirements
Bus +5 V (4.75 V to 5.4 V)
97 mA max
Bus +24 V (19.9 V to 26.4 V)
15 mA max
Peak Inrush Current
Less than 150 mA at 5 V.
Less than 400 mA at 24 V.
Power Dissipation within module
0.9 W maximum in Voltage/TC/Res/RTD modes; 1.8 W
maximum in current mode with all inputs at 21 mA.
Wire size
#16 to #28 AWG
RoHS
Meets European RoHS component standards (January 2015 and
earlier).
Wire Strip Length
0.375 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 (plastics).
110 mm × 89 mm × 51 mm (with RTBs installed).

1-8 Chapter 1, Module Overview
User’s Manual Pub. 0300305-01 Rev. A
Table 1-2. Environmental Specification Table
Environmental Tests
Industry Standards
Temperature (Operating) (Performance
Criteria A)
IEC60068-2-1: (Test Ad, Operating Cold),
IEC60068-2-2: (Test Bd, Operating Dry Heat),
IEC60068-2-14: (Test Nb, Operating Thermal Shock)
Temperature
(Non-operating)
(Performance Criteria B)
IEC60068-2-1:
(Test Ab, Unpackaged Non-operating Cold),
IEC60068-2-2:
(Test Bb, Unpackaged Non-operating Dry Heat),
IEC60068-2-14:
(Test Nb, Unpackaged Non-operating Thermal Shock)
Operating Altitude
2000 meters (6561 feet)
Humidity (Operating)
(Performance Criteria A)
IEC60068-2-30:
(Test Db, Unpackaged Damp Heat):
Vibration (Operating)
(Performance Criteria A)
IEC60068-2-6: (Test Fc, Operating)
Shock (Operating)
(Performance Criteria A)
IEC60068-2-27: (Test Ea, Unpackaged Shock)
Shock (Non-operating)
(Performance Criteria B)
IEC60068-2-27: (Test Ea, Unpackaged Shock)
Radiated Emissions
IEC 61000-6-4:2007
Conducted Emissions
IEC 61000-6-4:2007
ESD immunity
(Performance Criteria B)
IEC 61000-4-2
Radiated RF immunity
(Performance Criteria A)
IEC 61000-4-3: Level 3
EFT/B immunity
(Performance Criteria B)
IEC 61000-4-4
Surge transient immunity
(Performance Criteria B)
IEC 61000-4-5
Conducted RF immunity
(Performance Criteria A)
IEC 61000-4-6
Magnetic Field
(Performance Criteria A)
IEC 61000-4-8
AC Mains Voltage Dips, Interruptions
and Variations
IEC 61000-4-11

Chapter 1: Module Overview 1-9
User’s Manual Pub. 0300305-01 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 code T4 or better, Pollution degree 2, gas groups a, b, c, & 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
Section 1.3
Data Formats
There are four data input types:
Engineering units ×1
Engineering units ×10
Raw/proportional count
Percent Full Scale
Section 1.4
Hardware
Features
Channels are wired as differential inputs. Open-circuit detection is available in
the form of open circuit inputs going over-range for the current ranges. Short-
circuit detection is available in voltage mode. Inputs are protected from
electrostatic discharge up to 6 kV for indirect and contact discharge, 8 kV for air
discharge. Inputs are also fault-protected up to 24 VDC for voltage inputs, and up
to 32 mA for current inputs.
1.4.1 LED Indicators
The 2085sc-IF8u module 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. 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.

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User’s Manual Pub. 0300305-01 Rev. A
Table 1-4 LED Status Indicators
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.
Section 1.5
System
Overview
The 2085sc-IF8u module is expected to operate indefinitely. It does not require
periodic maintenance or calibration. The module communicates to the controller
through the bus interface. The module also receives 5 VDC and 24 VDC through
the bus interface.
Block diagram:

User’s Manual Pub. 0300305-01 Rev. A
Chapter 2
Installation and Wiring
This chapter will cover:
Compliance to European union directives
Power requirements
General considerations
Mounting
Field wiring connections
Section 2.1
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-IF8u module is tested to meet Council Directive 89/336/EEC
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
This product is intended for use in an industrial environment.
Section 2.2
Power
Requirements
The backplane power and the analog inputs of the device are only to 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 to
5.4 V)/+24 VDC (19.9 to 26.4 V) system power supply.
Current rating at + 5 V is 97 mA maximum; for +24 V it is 15 mA maximum.
Power rating is 3 Watts maximum:
5 VDC
24 VDC
97 mA
15 mA

2-2 Chapter 2: Installation and Wiring
User’s Manual Pub. 0300305-01 Rev. A
Section 2.3
General
Considerations
The 2085sc-IF8u 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. 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.
Device shall be installed in an enclosure which can
only be opened with the use of a tool.
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.
2.3.2 Prevent Electrostatic Discharge
WARNING
Electrostatic discharge can damage integrated circuits or
semiconductors if you touch analog module card bus
connector pins or the terminal block on the input module.
Follow these guidelines when you handle the module:
Touch a grounded object to discharge static potential.
Wear an approved wrist-strap grounding device.
Do not touch the bus connector or connector pins.
Do not touch circuit components inside the module.
If available, use a static-safe work station.
When it is not in use, keep the module in its static-
shield bag.
2Pollution Degree 2 is an environment where, normally, only non-conductive pollution occurs except that occasionally
a temporary conductivity caused by condensation shall be expected.

Chapter 2: Installation and Wiring 2-3
User’s Manual Pub. 0300305-01 Rev. A
2.3.3 Remove Power
WARNING
Remove power before removing or inserting this module.
When you remove or insert a module with power applied, an
electrical arc may occur. An electrical arc can cause personal
injury or property damage by:
Sending an erroneous signal to your system’s field
devices, causing unintended machine motion.
Causing an explosion in a hazardous environment.
Causing an electrical arc. Such arcing causes
excessive wear to contacts on both the module and its
mating connector, and may lead to premature failure.
2.3.4 Selecting a Location
Reducing Noise
Most applications require installation in an industrial enclosure to reduce the
effects of electrical interference. Analog inputs are highly susceptible to
electrical noise. Electrical noise coupled to the analog inputs will reduce the
performance (accuracy) of the module. Group your modules to minimize adverse
effects from radiated electrical noise and heat. Consider the following conditions
when selecting a location for the analog module. Position the module:
Away from sources of electrical noise such as hard-contact switches, relays,
and AC motor drives.
Away from modules which generate significant radiated heat. Refer to the
module’s heat dissipation specification.
In addition, route shielded, twisted-pair analog input wiring away from any high
voltage I/O wiring.
Section 2.4
Mounting
WARNING
Keeping module free of debris and avoiding overheating:
Do not remove protective debris strip until after the
module and all other equipment near the module is
mounted and the wiring is complete.
Once wiring is complete, and the module is free of
debris, carefully remove protective strip.
Failure to remove strip before operating can cause
overheating.

2-4 Chapter 2: Installation and Wiring
User’s Manual Pub. 0300305-01 Rev. A
2.4.1 Minimum Spacing
Maintain spacing from enclosure walls, wire ways, adjacent equipment, etc.
Allow 50.8 mm (2 in.) of space on all sides for adequate ventilation, as shown:
2.4.2 Parts List
Your package contains one Micro850 2085sc-IF8u (Universal Analog Input)
Plug-in Module and one Quick Start Guide.
2.4.3 Module Description
Description
Description
1
Mounting screw hole/mounting foot
4
Module interconnect latch
2
Removable Terminal Block (RTB)
5
DIN rail mounting latch
3
RTB hold down screws
6
I/O Status LED
2.4.4 Insert Module into the Controller
You can choose to wire the plug-in before inserting it into the controller, or wire
it once the module is secured in place.
3
4
1
2
6
5
3
3
1