AMCI ANR2 User manual

MICRO CONTROLS INC.
ADVANCED
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Manual #: 940-0A032

ADVANCED MICRO CONTROLS INC.
GENERAL INFORMATION
Important User Information
The products and application data described in this manual are useful in a wide variety of different applica-
tions. Therefore, the user and others responsible for applying these products described herein are responsible
for determining the acceptability for each application. While efforts have been made to provide accurate infor-
mation within this manual, AMCI assumes no responsibility for the application or the completeness of the
information contained herein.
UNDER NO CIRCUMSTANCES WILL ADVANCED MICRO CONTROLS, INC. BE RESPONSIBLE OR
LIABLE FOR ANY DAMAGES OR LOSSES, INCLUDING INDIRECT OR CONSEQUENTIAL DAM-
AGES OR LOSSES, ARISING FROM THE USE OF ANY INFORMATION CONTAINED WITHIN THIS
MANUAL, OR THE USE OF ANY PRODUCTS OR SERVICES REFERENCED HEREIN.
No patent liability is assumed by AMCI, with respect to use of information, circuits, equipment, or software
described in this manual.
The information contained within this manual is subject to change without notice.
This manual is copyright 2016 by Advanced Micro Controls Inc. You may reproduce this manual, in whole or
in part, for your personal use, provided that this copyright notice is included. You may distribute copies of this
complete manual in electronic format provided that they are unaltered from the version posted by Advanced
Micro Controls Inc. on our official website: www.amci.com. You may incorporate portions of this documents
in other literature for your own personal use provided that you include the notice “Portions of this document
copyright 2016 by Advanced Micro Controls Inc.” You may not alter the contents of this document or charge a
fee for reproducing or distributing it.
Standard Warranty
ADVANCED MICRO CONTROLS, INC. warrants that all equipment manufactured by it will be free from
defects, under normal use, in materials and workmanship for a period of [18] months. Within this warranty
period, AMCI shall, at its option, repair or replace, free of charge, any equipment covered by this warranty
which is returned, shipping charges prepaid, within eighteen months from date of invoice, and which upon
examination proves to be defective in material or workmanship and not caused by accident, misuse, neglect,
alteration, improper installation or improper testing.
The provisions of the "STANDARD WARRANTY" are the sole obligations of AMCI and excludes all other
warranties expressed or implied. In no event shall AMCI be liable for incidental or consequential damages or
for delay in performance of this warranty.
Returns Policy
All equipment being returned to AMCI for repair or replacement, regardless of warranty status, must have a
Return Merchandise Authorization number issued by AMCI. Call [phone] with the model number and
serial number (if applicable) along with a description of the problem during regular business hours, Monday
through Friday, 8AM - 5PM Eastern. An "RMA" number will be issued. Equipment must be shipped to
AMCI with transportation charges prepaid. Title and risk of loss or damage remains with the customer until
shipment is received by AMCI.
24 Hour Technical Support Number
24 Hour technical support is available on this product. If you have internet access, start at www.amci.com.
Product documentation and FAQ’s are available on the site that answer most common questions.
If you require additional technical support, call [phone]. Your call will be answered by the factory dur-
ing regular business hours, Monday through Friday, 8AM - 5PM Eastern. During non-business hours an auto-
mated system will ask you to enter the telephone number you can be reached at. Please remember to include
your area code. The system will page an engineer on call. Please have your product model number and a
description of the problem ready before you call.
We Want Your Feedback
Manuals at AMCI are constantly evolving entities. Your questions and comments on this manual are both wel-
comed and necessary if this manual is to be improved. Please direct all comments to: Technical Documenta-
tion, AMCI, 20 Gear Drive, Terryville CT 06786, or fax us at [phone]. You can also e-mail your
questions and comments to [email protected]

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Table of Contents
General Information
Important User Information ..................... 2
Standard Warranty ................................... 2
Returns Policy .......................................... 2
24 Hour Technical Support Number ........ 2
We Want Your Feedback ......................... 2
About this Manual
Audience .................................................. 5
Applicable Units ...................................... 5
Trademark Notices ................................... 5
Revision Record ....................................... 5
Revision History ............................ 5
Navigating this Manual ............................ 5
Manual Conventions ................................ 6
Where To Go From Here ......................... 6
Chapter 1: Introduction to the ANR2
AnyNET-I/O ............................................ 7
The ANR2 ................................................ 7
LVDT Interface ............................. 8
Master/Slave Excitation Mode ...... 8
ANR2 Programmable Parameters ............ 9
Module Parameters ........................ 9
Sensor Parameters ......................... 9
Position Output ........................................ 9
Power Connector ...................................... 10
I/O Connector .......................................... 11
Front Panel ............................................... 11
Address Settings ............................ 11
Status LED’s .................................. 12
Module States 12
Channel States 12
Excitation Mode Jumper ................ 13
Specifications ........................................... 13
Chapter 2: Operating Modes
Available Modes ...................................... 15
Calibration Mode ........................... 15
Configuration Mode ...................... 15
Alignment Mode ............................ 16
Measurement Mode ....................... 16
Status Bits ................................................ 16
Module Status Bits ........................ 16
Channel Status Bits ........................ 16
Power Up Behavior .................................. 17
Switching Modes During Normal Operation 17
Chapter 3: Installing the ANR2
Safe Handling Guidelines ........................ 19
Prevent Electrostatic Damage ....... 19
Prevent Debris From Entering 
the Module .................................. 19
Remove Power Before Servicing 
in a Hazardous Environment ...... 19
Mounting .................................................. 19
Dimensions ................................... 19
Installing IC-5 Connectors ............ 20
Mounting the ANR2 Module ........ 20
Addressing ................................................ 20
Power Connector ...................................... 21
I/O Connector Pin Out ............................. 21
Sensor Wiring ........................................... 22
Half Bridge ................................... 22
3-Wire Sensor ............................... 22
4-Wire Sensor ............................... 23
5-Wire Sensor ............................... 23
Differential Wiring ............. 23
Ratiometric Wiring ............. 24
6-Wire Sensor ............................... 25
Differential Wiring ............. 25
Ratiometric Wiring ............. 26
Extending the Transducer Cable .............. 27
Half Bridge Sensor ........................ 27
3-Wire Sensor ............................... 27
5-Wire Differential ....................... 28
5-Wire Ratiometric ....................... 29
6-Wire Differential ....................... 29
6-Wire Ratiometric ....................... 30
Avoiding Ground Loops When 
Extending the Sensor Cable ........ 30
Excitation Slave Mode ............................. 31
Excitation Mode Jumper ............... 31
SyncOut/SyncIn Wiring ................ 31
Chapter 4: AMCI Net Configurator
Software
ANR2 Configuration Screen .................... 33
ANR2 Alignment Screen ......................... 34
ANR2 Measurement Screen ..................... 35
Chapter 5: Network Input Data 
Format
Network Input Data .................................. 37
32 Bit Sign/Magnitude Format ..... 37

TABLE OF CONTENTS
ADVANCED MICRO CONTROLS INC.
4
Chapter 5: Network Input Data 
Format (continued)
Module Status Word Format .................... 38
Bit Descriptions ............................ 38
Channel Status Word Format ................... 41
Bit Descriptions ............................ 41
Chapter 6: Configuration Mode
Data Format
Transmit Bit .............................................. 43
Entering Configuration Mode .................. 43
Write Configuration Data Command ....... 44
Configuration Word Format ......... 44
Wire Mode Bits ............................. 45
ANR2 Response ............................ 45
Write Two Point Configuration Command 46
ANR2 Response ............................ 46
Save to Flash and Exit Command ............ 46
Exit Mode Command ............................... 47
Chapter 7: Alignment Mode Data
Format
Alignment Types ...................................... 49
32 Bit Data Values ................................... 49
Notes on Using Two Point 
Linear Alignment ................................... 50
Transmit Bit .............................................. 50
Entering Alignment Mode ........................ 50
ANR2 Response ............................ 51
Coarse Gain Adjustment for 
Two Point Linear Alignment ................. 51
Setting the Null Value .............................. 51
Status LED .................................... 51
Channel Status Bits ....................... 52
Channel Position Value ................ 52
Set Null Value Command ............. 52
ANR2 Response ............................ 52
Setting the Minimum Value ..................... 53
Channel Position Value ................ 53
Set Minimum Value Command .... 54
ANR2 Response ............................ 54
Setting the Maximum Value .................... 55
Channel Position Value ................ 55
Set Maximum Value Command ... 56
ANR2 Response ............................ 56
Save to Flash and Exit Command ............ 57
Exit Mode Command ............................... 57
Chapter 8: Measurement Mode Data
Format
Power Up Behavior .................................. 59
Exiting Alignment Mode .......................... 59
Begin Measurement Command ................ 59
Chapter A: The LVDT and RVDT
What is an LVDT? .................................... 60
What is an RVDT? ................................... 61
Important Characteristics .......................... 61

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ABOUT THIS MANUAL
Audience
This manual explains the set-up, installation, and operation of AMCI’s ANR2 AnyNET-I/O LVDT/RVDT
Signal Conditioner Module. It is written for the engineer responsible for incorporating these modules into a
design, as well as the engineer or technician responsible for their actual installation.
Applicable Units
This manual applies to all ANR2 modules, including those that have an integral network connection. This
includes the ANR2E which has an integral Ethernet port. This port allows the ANR2E to connect itself, and
up to five other modules, to an EtherNet/IP or Modbus/TCP network.
If you have an ANR2 module with a network interface, you will have to refer to the appropriate AnyNET-I/O
Network Interface manual for information on connecting the module to your network. These manuals can be
found in the PDF document section of our website at www.amci.com/documents.asp
The AnyNET-I/O product line is constantly evolving. Check our website, www.amci.com for
the latest information on available modules and network interfaces in the AnyNET-I/O line.
Trademark Notices
The AMCI logo and “AnyNET-I/O” are trademarks of Advanced Micro Controls Inc.
All other trademarks contained herein are the property of their respective holders.
Revision Record
This manual, 940-0A031, is the second release. Released on June 25th, 2013 this edition updates parameter
ranges, adds differential wiring diagrams for 5- and 6- wire sensors, and adds screen captures from the AMCI
Net Configurator software.
Revision History
940-0A030 Initial Release.
Navigating this Manual
This manual is designed to be used in both printed and on-line formats. Its on-line form is a PDF document,
which requires Adobe Acrobat Reader version 7.0+ to open it. The manual is laid out with an even number of
pages in each chapter. This makes it easier to print a chapter to a duplex (double sided) printer.
Bookmarks of all the chapter names, section headings, and sub-headings were created in the PDF file to help
navigate it. The bookmarks should have appeared when you opened the file. If they didn’t, press the F5 key
on Windows platforms to bring them up.
Throughout this manual you will also find blue text that functions as a hyperlink in HTML documents.
Clicking on the text will immediately jump you to the referenced section of the manual. If you are reading a
printed manual, most links include page numbers.
The PDF file is password protected to prevent changes to the document. You are allowed to select and copy
sections for use in other documents and, if you own Adobe Acrobat version 7.0 or later, you are allowed to
add notes and annotations.
Read this chapter to learn how to navigate through this manual and familiarize
yourself with the conventions used in it. The last section of this chapter high-
lights the manual’s remaining chapters and their target audience.

ABOUT THIS MANUAL
ADVANCED MICRO CONTROLS INC.
6
Manual Conventions
Three icons are used to highlight important information in the manual:
NOTES highlight important concepts, decisions you must make, or the implications of those
decisions.
CAUTIONS tell you when equipment may be damaged if the procedure is not followed
properly.
WARNINGS tell you when people may be hurt or equipment may be damaged if the pro-
cedure is not followed properly.
The following table shows the text formatting conventions:
Where To Go From Here
This manual contains information that is of interest to everyone from engineers to operators. The table below
gives a brief description of each chapter’s contents to help you find the information you need to do your job.
Format Description
Normal Font Font used throughout this manual.
Emphasis Font Font used the first time a new term is introduced.
Cross Reference When viewing the PDF version of the manual, clicking on
the cross reference text jumps you to referenced section.
CHP
Num. Chapter Title Intended Audience
1Introduction to the
ANR2 Anyone new to the ANR2. This chapter gives a basic overview of
the features available on the unit, typical applications, and specifi-
cations.
2Operating Modes Anyone that needs detailed information on how the module oper-
ates.
3Installing the ANR2 Anyone that must install an ANR2 on a machine. Includes infor-
mation on mounting, grounding, and wiring specific to the units.
4NetworkInput Data
Format Anyone interested in the format of the data you can read from the
ANR2. The data format for all of the modes is included in this
chapter.
5Configuration Mode
Data Format Anyone that needs information on the commands you must write to
the ANR2 to set its configuration.
6AlignmentModeData
Format Anyone that needs information on the commands you must write to
the ANR2 to align a sensor before measurements can be made
from it.
7Measurement Mode
Data Format Anyone that needs information on the commands you must write to
the ANR2 to gather position and velocity data from a sensor.
AAnyone that needs to learn more about LVDT/RVDT’s in general.

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CHAPTER 1
INTRODUCTION TO THE ANR2
AnyNET-I/O
The ANR2 is an expansion to the AnyNET-I/O product line from
AMCI. The concept of this product line is simple: specialty and/
or high speed I/O that can be attached to any popular industrial
network; hence the name AnyNET-I/O.
AnyNET-I/O is designed for a broad range of applications, from
small machines with a single control enclosure, to large machines
that use distributed I/O extensively to minimize wiring costs.
What makes the AnyNET-I/O line different is that all of the mod-
ules are available with or without a network interface. Eliminating
the need for a separate networking module lowers the total cost of
ownership for all applications, but especially for the cost sensitive
small machines that only require one or two sophisticated func-
tions.
Like many modern controllers, AnyNET-I/O modules are
designed to be DIN rail mounted. Up to six AnyNET-I/O modules
can be stacked together and accessed over a single network inter-
face. “Stacking” is accomplished through a small backplane con-
nector that snaps into the DIN rail before the AnyNET-I/O
modules are installed. These connectors allow the AnyNET-I/O
modules to communicate with each other. To the network, the
stack of modules appear as one continuous block of I/O words.
The ANR2
The ANR2 is a two channel LVDT/RVDT signal conditioner module that accepts 24 Vdc as its power source.
What makes the ANR2 unique is its advanced digital technology that completely eliminates all potentiometer
adjustments and all but one jumper. This technology allows the ANR2 to interface with half bridge sensors,
as well as 3-, 4-, 5-, and 6-wire AC LVDT/RVDT sensors from any manufacturer with methods that eliminate
many of the errors associated with changes in environmental temperatures. The ANR2 offers 14 bit (16,386
count) position resolution.
The elimination of jumpers and potentiometers means that you do not have to be physically near the ANR2
while configuring and aligning it. All configuration and alignment data is sent from your host system over
the network connection of the AnyNET-I/O stack. This allows you to:
Configure the ANR2 from anywhere
Store multiple setups on your machine, one for each type of sensor you use
Copy setup data from one machine to another
Design custom HMI interfaces for configuration and alignment that can simplify machine training,
startup, and repair.
This manual assumes that you are familiar with LVDT/RVDT’s and their electrical character-
istics. If you are not familiar with these sensors, please refer to Appendix A, The LVDT and
RVDT starting on page 60.
This manual is designed to get you quickly up and running with the ANR2 LVDT/
RVDT Signal Conditioner Module. It is possible to purchase an ANR2 with or with-
out a network interface. This manual only covers the functionality unique to the
ANR2. Information on connecting to the network interface is available in the
appropriate AnyNET-I/O Network Interface manual available on the AMCI website.
Figure 1.1 AnyNET-I/O Module Stack

INTRODUCTION TO THE ANR2
ADVANCED MICRO CONTROLS INC.
1
8
The ANR2 (continued)
LVDT Interface
The ANR2 incorporates a DSP controlled sine wave oscillator and power amplifier to generate the excitation
voltage for the LVDT. Fully programmable over a wide range of frequencies and amplitudes, the ANR2 can
be configured to run at the optimum frequency of your LVDT or RVDT sensor.
Many of signal conditioners on the market today use the differential measurement method, where the second-
ary windings are put in series opposition and the voltage across the two windings is measured. This condi-
tioning method is the simplest, compatible with all 4-, 5-, and 6-wire LVDT’s, and offers acceptable
performance for most applications. However, the accuracy of differential measurements can suffer from the
following:
Changes in excitation voltage and frequency caused by ambient temperature changes
Changes in sensor sensitivity caused by ambient temperature changes at the sensor
Electrical noise injected into the cabling from external sources.
A simple method used by the ANR2 eliminates measurement errors caused by changes in the ambient tem-
perature around the module. By feeding the excitation voltage (Ve) back into the ANR2, the module can cal-
culate the ratio: {(VA– VB) / (Ve)}. Dividing the differential measurement by the excitation voltage
eliminates changes in the excitation voltage as a source of error. However, this method does not eliminate
errors caused by changes in ambient temperature around the sensor.
Many LVDT/RVDT applications expose the sensor to large variations in temperature, and these applications
often require the most accurate measurements possible over the entire temperature range. For these demand-
ing applications, the ANR2 supports the ratiometric measurement method. This method requires a five or six
wire sensor that is specifically manufactured to support ratiometric measurements. This method measures the
two secondary voltages separately and calculates the LVDT position as: {(VA– VB) / (VA+ VB)}. By consid-
ering the ratio of the outputs, any error caused by an increase or decrease in the absolute values of these volt-
ages is eliminated. This method also eliminates any common mode electrical noise that can be induced into
the sensor wiring from external sources.
Master/Slave Excitation Mode
Up to six ANR2 modules can be placed in a single AnyNET-I/O stack. When using multiple sensors in close
proximity, it is sometimes beneficial to synchronize the excitation voltages when the sensors use the same
excitation frequency. Synchronizing the excitation voltages avoids a phenomenon known as heterodyning,
which is commonly called beating.
In LVDT/RVDT applications, heterodyning can be considered a form of cross talk. If a small variance in
excitation frequency is coupled from one sensor into another, the result will be a dynamic change in output
signal that will affect the accuracy of the measurement. These effects are also compensated for in the ANR2
when using the ratiometric measurement method, but these effects can still be seen in differential measure-
ments.
All ANR2 modules ship as Master modules and generate their own excitation voltages. You change an
ANR2 to a slave module by changing a jumper on the front of the unit and programming a parameter in the
network data. External wiring is then used to connect the master module to the slaves. Any module in the
stack can be the master, but wiring will be easier if the module on the far left of the stack is the master.

20 Gear Drive, Plymouth Ind. Park, Terryville, CT 06786
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INTRODUCTION TO THE ANR2 1
9
ANR2 Programmable Parameters
Module Parameters
Module Type: In addition to setting the Master/Slave jumper, you must also program this parameter to con-
figure the ANR2 as a master or slave module. The unit ships as a master module.
Excitation Voltage: The excitation voltage of an ANR2 can be set to any value between 0.800 Vrms and
12.000 Vrms.
Excitation Frequency: The excitation frequency can be set to any value between 400 and 10,000 Hz.
Sensor Parameters
Sensor Type: The ANR2 has to know what type of sensor (Differential, Ratiometric, or 3-wire/half bridge) is
wired to the channel. Note that 5- and 6-wire ratiometric sensors can be wired to the channel as dif-
ferential sensors. In these cases, the Sensor Type must be set to “Differential”.
Sensor Sensitivity: This parameter specifies the change in output as the sensor’s core moves. The value this
parameter should be set to is given with the sensor. The units for this parameter are 0.1mVoutput/Vex-
citation/displacement, where displacement can be in units of millimeters, 0.001 inches (mills), or
0.01°.
This parameter is programmed with 0.1 millivolt resolution, with a range of 1 to 50,000. You
will probably have to convert between units before entering the values into the ANR2. For example,
if the sensitivity of your LVDT is 6.5 mV/V/mm, you would multiply this value by 10 to convert it to
the units of 0.1mV/V/mm and enter this value of 65 into the ANR2.
Sensor Displacement: This is the expected travel for your sensor. The ANR2 uses this information to verify
that the analog inputs will not become saturated during normal operation. The units for this parameter
are 0.01mm, mil (0.001"), or 0.01° and should be the same as the displacement unit used for Sensor
Sensitivity. Your displacement can exceed this value during operation, but accuracy may suffer. The
valid range of this parameter is 5 to 10,000.
Null Value: The desired value when the sensor is at its null position. This is a signed thirty-two bit value,
with the range of ±2,147,483,647.
Minimum Value: The desired value when the sensor is at one of its end of travel positions. This is a signed
thirty-two bit value, with the range of ±2,147,483,647. The maximum difference between the Mini-
mum and Null Values is 65,535 counts.
Maximum Value: The desired value when the sensor is at the other of its end positions. This is a signed
thirty-two bit value, with the range of ±2,147,483,647. The maximum difference between the Maxi-
mum and Null Values is 65,535 counts.
Disable Channel LED: Allows you to turn off the front panel Status LED if you have an unused channel.
Position Output
Your position output is defined at up to three points, the minimum, maximum, and null points. The values at
these points are defined when you align the sensor.
There are four different ways to define these points:
Two Sided Alignment: You define all three values at the null, minimum and maximum travel points.
Two Sided Symmetrical Alignment: You define the Null Value and the value at one of the end points.
The other endpoint is calculated as (Null Value – End Value).
One Sided Alignment: You define the Null Value and the value at one of the end points. This form of
alignment is identical to Two Sided Symmetrical Alignment, but was included for users that only mea-
sure from the null point to one of the end points. The un-used end point is still defined as (Null Value –
End value).
Two Point Linear Alignment: You define the minimum and maximum points of travel.

INTRODUCTION TO THE ANR2
ADVANCED MICRO CONTROLS INC.
1
10
Position Output (continued)
Figure 1.2 shows three forms of the position output graphs that are available when using the Two Sided
Alignment method. When using this method:
The points do not have to be colinear.
The Minimum and Maximum values can be equal.
The Null value cannot be equal to either the Minimum or Maximum values.
The maximum difference between the Null value and the end values is 65,535 counts.
Figure 1.2 Position Output Example Graphs
The linear output graph is the only form available when using the Two Sided Symmetrical Alignment and
One Sided Alignment methods. The Two Point Linear Alignment method also results in a linear graph, but
the maximum difference between the minimum and maximum values is 65,535 counts.
The ANR2 has a maximum position resolution of fourteen bits. This resolution is available over the full
range of motion, from minimum to maximum positions. If your range of motion is less than this, your resolu-
tion will also be less. For example, if your range of motion is from the null point to one extreme, your resolu-
tion will be thirteen bits.
Power Connector
Figure 1.3 shows the location of the Power Connector. The mate to this connector is included with the ANR2.
Spares are available from AMCI under the part number MS-4M. They are also available from Phoenix Con-
tact under their part number 187 80 37.
Figure 1.3 Power Connector
Figure 1.3 also shows the area of the AnyNET-I/O modules that is reserved for network connections. If your
ANR2 has a network connection, such as the ANR2E for Ethernet networks, connection to the network will
be made here. Refer to the appropriate AnyNET-I/O Network Interface manual for additional information.
Minimum
Null
Maximum
Minimum
Null
Maximum
Minimum
Null
Maximum
Equal Values
PositionPosition Position Position
O
utput Value
O
utput Value
Output Value Output Value
65,535 max.
65,535 max.
Power Connector
ANR2 Bottom View
+Vdc
DC Retur
n
Chassis GND (Shields)
DC Return
Area for
Network
Connections*

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INTRODUCTION TO THE ANR2 1
11
I/O Connector
As shown in figure 1.4, the I/O Connector is located on the top of
the module. All sensor connections are made at this connector.
Power connections for the ANR2 are made through the MS-4M con-
nector on the bottom of the module.
The mate for this connector is included with the ANR2. Spares are
available from AMCI under the part number MS-2X11. They are
also available from Phoenix Contact under their part number 173 88
98.
Front Panel
The front panels of three ANR2 modules are shown in fig-
ure 1.5. The front cover is hinged on the bottom, and
swings down to allow you to change the DIP switch
address settings and the slave mode jumper. The front
panel also has the Status LED’s, which give you informa-
tion on the state of the module and the sensors.
Address Settings
The AnyNET-I/O platform allows you to connect upto six
modules to a single network connection in what we call an
AnyNET-I/O Stack. The DIP switches behind the front
panel cover are used to set the address of the module
within the AnyNET-I/O Stack. A module with a network
interface, such as the ANR2E for Ethernet networks, com-
municates with the host and must have an address of zero.
This address is set by having all of the DIP switches in
their OFF position. (If you are using a single module,
then it must have an address of zero.) The remaining
modules in the stack should have their addresses set to
their position in the stack by setting the corresponding
DIP switch to its ON position. Figure 1.5 shows the cor-
rect addressing for three modules. The module on the left
is an ANR2E and has its address set to zero. The remain-
ing modules can be ANR2 modules with or without net-
work interfaces and their addresses are set to one and two.
If an ANR2 with a network interface has its address set to any value other than zero, its net-
work interface is disabled. This allows you to use multiple modules with network interfaces in
a single AnyNET-I/O Stack.
Figure 1.4 I/O Connector
11
10
9
8
7
6
5
4
3
2
1
11
10
9
8
7
6
5
4
3
2
1
GND
N.C.
N.C.
B1
GND
GND
A1
–
Exc
+Exc
Shield
SyncOut
GND
N.C.
N.C.
B1
GND
GND
A1
–Exc
+Exc
Shield
SyncOut
GND
N.C.
N.C.
B2
GND
GND
A2
–Exc
+Exc
GND
SyncIn
GND
N.C.
N.C.
B2
GND
GND
A2
–Exc
+Exc
GND
SyncIn
11
10
9
8
7
6
5
4
3
2
1
11
10
9
8
7
6
5
4
3
2
1
TOP VIEWTOP VIEW
J1J1J2J2
Front of
ANR2
Front of
ANR2
Channel 1Channel 1 Channel 2Channel 2
Figure 1.5 ANR2 Front Panel
ADDRESS ADDRESS
STATUS STATUS
ADDRESSADDRESS
STATUS
CH2CH2CH2
CH1CH1CH1
L
VDT/RVDT
INPUT
L
VDT/RVDT
INPUT
L
VDT/RVDT
INPUT

INTRODUCTION TO THE ANR2
ADVANCED MICRO CONTROLS INC.
1
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Front Panel (continued)
Status LED’s
The Status indicators are bi-color red/green LED’s shows the status of the module and sensors.
Module States
Table 1.1 Status LED’s - Module Patterns
Channel States
Table 1.2 Status LED’s - Channel Patterns
Module State LED Blink Pattern Description
Module Initialized Both LED’s flash green twice in one
second followed by one second off. Module has finished its power up sequence and is waiting for network command data.
Module Error Both LED’s ON Red Error in module or communications within
the AnyNET-I/O Stack. Cycle power to the
module or stack to attempt to clear this prob-
lem.
Calibration Mode Both LED’s flash red at 4 Hz.
(Fast blink)
The module is calibrated at the factory. If
you see this pattern, cycle power. If the pat-
tern remains, contact AMCI Tech Support for
assistance.
Configuration Mode Both LED’s flashes red twice in one
second (slow blink), followed by one
second off. The last network data transfer to the ANR2
placed it in Configuration Mode.
Channel State LED Blink Pattern Description
Alignment Mode
(Increase B voltage to
reach Null Point)
Channel LED flashes green three
times in 1.5 seconds (slow blink), fol-
lowed by one second off.
The channel is in Alignment Mode, and is
searching for the null point. Movement must
occur to increase the voltage on the B channel
to reach the null point.
Alignment Mode
(Decrease B voltage to
reach Null Point)
Channel LED flashes red three times
in 1.5 seconds (slow blink), followed
by one second off.
The channel is in Alignment Mode, and is
searching for the null point. Movement must
occur to decrease the voltage on the B chan-
nel to reach the null point. This is the same
as increasing the voltage on the A channel for
5-wire and 6-wire sensors.
Alignment Mode
(At Null Point) Channel LED alternately flashes red
and green at 2 Hz. (Slow blink) The channel is in Alignment Mode, and is at the null point.
Alignment Mode
(Null Point
programmed) Channel LED alternately flashes red
and green at 4 Hz. (Fast blink) The channel is in Alignment Mode, and the null point has been programmed.
Measurement Mode
(Channel not active) Channel LED flash green at 2 Hz. (Slow blink) Channel is fully configured and aligned and
is waiting for command to begin measure-
ments.
Measurement Mode
(Channel active) Channel LED is ON green. Channel is reading position data from the sensor.
Sensor Error Channel LED flash red at 2 Hz.
(Slow blink) Error reading sensor. (Improper wiring, sen- sor damaged, or sensor missing)
Channel Disabled LED off The channel is disabled.

20 Gear Drive, Plymouth Ind. Park, Terryville, CT 06786
Tel: [phone] Fax: [phone] http://www.amci.com
INTRODUCTION TO THE ANR2 1
13
Front Panel (continued)
Excitation Mode Jumper
Figure 1.6 shows the location of the headers that set the excita-
tion mode of the ANR2. You access the headers by opening the
front cover of the module. All ANR2 modules ship with a
jumper across the “Master” pins. To set the module to slave
mode, move the jumper from the Master pins to the Slave pins.
The module will not operate correctly if the
jumper is not across one of the sets of pins.
Jumper these two pins
for a Master Module.
(Factory Default)
Jumper these two pins
for a Slave Module.
Figure 1.6 Slave Mode Jumper Location
Specifications
Sensor Type
AC. Half bridge, three, four, five, or six wire
LVDT/RVDT.
Number of Input Channels
Two
Number of I/O Words (16 bits each)
10 input words and 10 output words
Physical Dimensions
Width: 0.9 inches max.
Depth: 4.5 inches max.
Height: 3.9 inches
5.0 inches min. with mating connectors
Weight
0.38 lbs. (0.17 kg.) with mating connectors
Current Draw
200 mA without sensors
375 mA with Excitation voltage shorted to GND.
Available Measurement Methods
Differential and Ratiometric. Ratiometric is only
available as an option with 5- and 6- wire sen-
sors.
Excitation Voltage
Voltage Output: 
Programmable from 0.800 to 12.000 Vrms 
with 1 millivolt resolution
Frequency: 
Programmable from 400 to 10,000 Hz
with 1 Hz resolution
Output Current: 
200 mA maximum
Sensor Sensitivity
Programmable from 0.1 to 5,000.0 mV/V/{mm,
0.001" (mil), 0.01°} with a resolution of 0.1 mV.
The ANR2 uses Sensor Sensitivity and Sensor
Displacement to set input amplifier gains.
Sensor Displacement
Programmable from 5 to 10,000. Units are
0.01mm, 0.001" (mil), or 0.01°. Distance units
must match units used when programming Sen-
sor Sensitivity. The ANR2 uses Sensor Sensi-
tivity and Sensor Displacement to set input
amplifier gains.
Position Resolution
14 bit max. (16,384 steps over entire range) Posi-
tion output can be scaled to a 32 bit value
Position Update Time
250 microseconds.
Environmental Specifications
Input Power ...... 24 Vdc ±10%, surge to 30Vdc
without damage to module.
Ambient Operating Temperature
........... -4° to 122°F (-20° to 50°C)
Storage Temperature
........... -40° to 185°F (-40° to 85°C)
Humidity ........... 0 to 95%, non-condensing
Status LED
See Status LED’s starting on page 12.
Connectors
Mating connectors are included with the ANR2
and are available separately under the following
AMCI part numbers.
Connector AMCI Part # Wire Strip Length Min. Tightening Torque
I/O MS-2X11 28 - 16 AWG 0.275 inches Spring Cage Connector
Power MS-4M 28 - 12 AWG 0.394 inches 4.43lb-in (0.5 Nm)
Backplane IC-5 Not Applicable

INTRODUCTION TO THE ANR2
ADVANCED MICRO CONTROLS INC.
1
14
Notes

20 Gear Drive, Plymouth Ind. Park, Terryville, CT 06786
Tel: [phone] Fax: [phone] http://www.amci.com 15
CHAPTER 2
OPERATING MODES
Available Modes
The order and names of the available modes are:
1) Calibration Mode
2) Configuration Mode
3) Alignment Mode
4) Measurement Mode
Commands are available that allow you to switch between modes as needed. When you exit a mode, the
ANR2 will automatically select the highest available mode that can be entered and enter that mode.
Calibration Mode
Every ANR2 is calibrated at the factory. You should never need to enter this mode. If an
ANR2 reports that the module needs to be calibrated, contact the AMCI Technical Support
department for assistance. Calibrations can be made in the field, but an accurate true RMS
meter is required.
Calibration Mode is used to make fine adjustments to the excitation voltage circuitry and allows the ANR2 to
accurately control the excitation voltage. After successful calibration, the resolution of the excitation voltage
setting is one millivolt.
Configuration Mode
The parameters set in Configuration Mode are shown in table 2.1. The ANR2 has only one excitation volt-
age, so the Excitation Voltage and Excitation Frequency parameters apply to both channels. The three sensor
parameters exist separately for each channel.
† The unit of distance of the Sensitivity and Displacement parameters must be the same. If you do not know
the value of these parameters, you can leave them un-set. If you do this, the only alignment method avail-
able to you is the Two Point Linear method.
Table 2.1 Configuration Parameters
The ANR2 has to be configured for your LVDT or RVDT and the range of motion
defined before the unit can accurately read the position of your sensor. The ANR2
has four operating modes that allow to setup and read your sensor.
Parameter Range Units
Excitation Type Master / Slave
Excitation Voltage 800 to 12,000 millivolts
Excitation Frequency 400 to 10,000 Hertz
Sensor Type Ratiometric, Differential, or
3-wire/half bridge
Sensor Sensitivity†1 to 50,000 0.1 mV/V/mm
0.1 mV/V/mil (0.001")
0.1 mV/V/°
Sensor Displacement†5 to 10,000 0.01 mm mil (0.001")
0.01°

OPERATING MODES
ADVANCED MICRO CONTROLS INC.
2
16
Available Modes (continued)
Alignment Mode
After the module is configured, Alignment Mode is used to set the Minimum, Maximum, and Null Values.
Note that each channel is programmed separately
† The Null Value is not set when using the Two Point Linear method. When using this method, the maxi-
mum distance between the Minimum Value and Maximum Value is 65,535 counts. Both values must be in
the range of ±2,147,483,647. Table 2.2 Alignment Parameters
Measurement Mode
After the sensor is aligned, use Measurement Mode to read back the position and velocity values from your
sensor. If the ANR2 automatically enters Measurement Mode after you exit a different mode, you must issue
a command to the unit to tell it which channels to read.
Status Bits
The ANR2 has five module status bits so you can determine the state of the module. It also has four status
bits per channel to tell you what valid data exists for the channel and if the ANR2 is actively measuring the
position of the sensor.
Module Status Bits
Module Initialized: This bit is set on power up or after a hardware reset. The ANR2 is only transmitting status
information. Position data is set to zero. The module is waiting for the first command from the host
controller.
In Calibration Mode: If this bit is set along with the Module Initialized bit on power up, the ANR2 requires cal-
ibration. If it is set when the Module Initialized bit is reset, the unit is in Calibration Mode.
In Configuration Mode: If this bit is set along with the Module Initialized bit on power up, the ANR2 does not
have valid configuration data for either channel. If it is set when the Module Initialized bit is reset, the
unit is in Configuration Mode. Use the Channel Status bits to determine which channels require con-
figuration.
In Alignment Mode: If this bit is set along with the Module Initialized bit on power up, the ANR2 does not
have valid alignment data for either channel. If it is set when the Module Initialized bit is reset, the
unit is in Alignment Mode. Use the Channel Status bits to determine which channels require align-
ment.
In Measurement Mode: If this bit is set along with the Module Initialized bit on power up, the ANR2 is ready
to measure position on at least one of the channels. If it is set when the Module Initialized bit is reset,
the unit is in Measurement Mode. Use the Channel Status bits to determine which channels the
ANR2 is actively measuring.
Channel Status Bits
Channel Calibrated: Valid calibration data exists for the channel.
Channel Configured: Valid configuration data exists for the channel.
Channel Aligned: Valid alignment data exists for the channel.
Channel Measuring: The ANR2 is actively measuring the position of the sensor.
Parameter Range Units
Null Value†±2,147,483,647 Counts
Minimum Value Null Position ± 65,535
±2,147,483,647 max. Counts
Maximum Value Null Position ± 65,535
±2,147,483,647 max. Counts

20 Gear Drive, Plymouth Ind. Park, Terryville, CT 06786
Tel: [phone] Fax: [phone] http://www.amci.com
OPERATING MODES 2
17
Power Up Behavior
When power is applied to the ANR2, it runs self checks and determines which modes have been successfully
completed by validating the data stored in its EEPROM. It sets status bits for each channel and then status
bits for the module. Its final act is to set the Module Initialized bit.
The Module Initialized Bit is only set when the ANR2 completes its power up sequence, and is
reset when the module accepts its first command. If this bit is set during normal operation,
then the module has experienced a hardware reset. This behavior can be caused by a tempo-
rary drop in input voltage or a surge of electrical noise that was induced into the module.
After power up, the ANR2 waits for the first command from the host controller before entering one of the
available modes. While waiting, the ANR2 only transmits status information. The words used to transmit
position data are set to zero.
For normal operation, you must issue a command to switch to Measurement Mode after every
power up. The ANR2 will not transmit position data to the host until this command is issued.
Switching Modes During Normal Operation
Figure 2.1 is a graphical representation of how the ANR2 allows you to switch between modes during normal
operation. You can jump from any mode to any previous mode, but, if parameter changes are saved while in
the new mode, you can only progress forward in the correct order after that.
Figure 2.1 Switching Between Modes
Calibration Mode
(Factory Set) Configuration Mode Alignment Mode Measurement
Mode
The ANR2
will only set the
Calibration Mode bit on power up if the
factory settings have been corrupted.
The unit can be calibrated in the field,
but an accurate true RMS voltmeter is
required. Contact AMCI for assistance.

OPERATING MODES
ADVANCED MICRO CONTROLS INC.
2
18
Notes

20 Gear Drive, Plymouth Ind. Park, Terryville, CT 06786
Tel: [phone] Fax: [phone] http://www.amci.com 19
CHAPTER 3
INSTALLING THE ANR2
Safe Handling Guidelines
Prevent Electrostatic Damage
Electrostatic discharge can damage the ANR2 if you touch the rear bus connector pins.
Follow these guidelines when handling the module.
1) Touch a grounded object to discharge static potential before handling the module.
2) Work in a static-safe environment whenever possible.
3) Wear an approved wrist-strap grounding device.
4) Do not touch the pins of the bus connector or I/O connector.
5) Do not disassemble the module
6) Store the module in its anti-static bag and shipping box when it is not in use.
Prevent Debris From Entering the Module
During DIN rail mounting of all devices, be sure that all debris (metal chips, wire
strands, tapping liquids, etc.) is prevented from falling into the module. Debris may
cause damage to the module or unintended machine operation with possible personal
injury. The DIN rail for the modules should be securely installed and grounded before
the modules are mounted on it.
Remove Power Before Servicing in a Hazardous Environment
The AnyNET-I/O InterConnect bus is hot-swappable, but remove power before remov-
ing or installing any modules in a hazardous environment.
Mounting
Dimensions
Figure 3.1 shows the dimensions of an AnyNET-I/O
module. The ANR2 module is a low power module that
does not require any additional spacing when mounting
the unit. Refer to the installation instructions of the
appropriate AnyNET-I/O network interface module for
complete information on spacing needed to install the
module.
You will need to ground the LVDT/
RVDT cable shields at the module.
There is a single pin on the ANR2 to
ground a shield, but if you have multi-
ple shields, it may be better to ground
them to the DIN rail. If you decide to
do this, make sure your DIN rail is long
enough to mount the AnyNET-I/O
modules and ground the cable shields.
The ANR2 module must be installed as part of an AnyNET-I/O stack. The instruc-
tions in this manual explain how to install the ANR2 as part of the stack and how
to set its address. Complete installation instructions for the AnyNET-I/O stack, or
individual networked modules, is included in the manual for installing the network
interface module.
Figure 3.1 AnyNET-I/O Outline
4.47"
(113.5)
3.90"
(99.1)
4.55
"
(115.
6)
0.89"
(22.6)
I/O Mating Connector
0.26"
(6.6)
ADDRESS
4.47"

INSTALLING THE ANR2
ADVANCED MICRO CONTROLS INC.
3
20
Mounting (continued)
Installing IC-5 Connectors
You need to install an IC-5 connector on the DIN
rail to allow the ANR2 to communicate with the
stack. Figure 3.2 shows how to install the IC-5
connectors in the DIN rail.
Note the orientation of the IC-5
connectors when installing them.
The module key goes towards the
bottom of the DIN rail.
If you are using a single ANR2 with a network
interface, then you do not need the IC-5 connec-
tor. The connector is only used for communica-
tions within the stack.
Mounting the ANR2 Module
Mounting an AnyNET-I/O module is a very simple process thanks to the design of the enclosure.
1) Partially engage the connector into the enclosure.
2) Engage the top clip in the enclosure with the top of the DIN rail and rotate the module down until the
metal bracket snaps on to the DIN Rail.
Once all of your modules are installed, it is strongly suggested to use the end caps from Phoenix Contact with
the part number of 271 37 80 to secure the modules on the DIN Rail. These end caps prevent the module
from sliding along the DIN rail if it is subjected to shock or vibration during machine operation.
Addressing
Each module needs to be given an address before the sys-
tem will operate correctly. The address is set with the
five position DIP switch on the front of the module.
1) Only a single switch should be in the
“ON” position when setting the
address.
2) The module that has an address of zero
must have a network interface and it is
the only module in the stack that can
have a direct connection to the network.
3) If a module with a network interface
has a non-zero address, then its network
interface is disabled.
Figure 3.3 is a close up of three modules in an 
AnyNET-I/O Stack. The module on the left has a net-
work interface and has an address of zero (All DIP switches off.) This module has the active network inter-
face and connects the stack to the network. Reading left to right, the remaining modules have addresses of
one and two respectively. If either of these module have a network interface, it is disabled.
Figure 3.2 IC-5 Connector Installation
Figure 3.3 Addressing Example
A
D
D
R
E
S
S
ADDR
E
S
S
ADDRESS
Address
=0
Address
=1
Address
=2