Allen-Bradley POINT I/O ControlNet 1734-ACNR User manual

POINT I/O
ControlNet Adapter
1734-ACNR
User Manual
Allen-Bradley

Important User Information
Because of the variety of uses for the products described in this
publication, those responsible for the application and use of these
products must satisfy themselves that all necessary steps have been
taken to assure that each application and use meets all performance
and safety requirements, including any applicable laws, regulations,
codes and standards. In no event will Rockwell Automation be
responsible or liable for indirect or consequential damage resulting
from the use or application of these products.
Any illustrations, charts, sample programs, and layout examples
shown in this publication are intended solely for purposes of
example. Since there are many variables and requirements associated
with any particular installation, Rockwell Automation does not assume
responsibility or liability (to include intellectual property liability) for
actual use based upon the examples shown in this publication.
Allen-Bradley publication SGI-1.1, Safety Guidelines for the
Application, Installation and Maintenance of Solid-State Control
(available from your local Rockwell Automation office), describes
some important differences between solid-state equipment and
electromechanical devices that should be taken into consideration
when applying products such as those described in this publication.
Reproduction of the contents of this copyrighted publication, in whole
or part, without written permission of Rockwell Automation, is
prohibited.
Throughout this publication, notes may be used to make you aware of
safety considerations. The following annotations and their
accompanying statements help you to identify a potential hazard,
avoid a potential hazard, and recognize the consequences of a
potential hazard:
WARNING
!
Identifies information about practices or
circumstances that can cause an explosion in a
hazardous environment, which may lead to personal
injury or death, property damage, or economic loss.
ATTENTION
!
Identifies information about practices or
circumstances that can lead to personal injury or
death, property damage, or economic loss.
IMPORTANT Identifies information that is critical for successful
application and understanding of the product.

Rockwell Automation
Support
Before you contact Rockwell Automation for technical assistance, we
suggest you please review the troubleshooting information, chapter
5.
If the problem persists, call your local distributor or contact Rockwell
Automation in one of the following ways:
Your Questions or Comments on this Manual
If you find a problem with this manual, please notify us of it on the
enclosed How Are We Doing form found at the back of the manual.
Phone United
States/Canada 1.440.646.5800
Outside United
States/Canada You can access the phone number for your country via the Internet:
1.Go to http://www.ab.com
2. Click on
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(http://support.automation.rockwell.com)
3. Under
Support Centers , click on Contact
Information
Internet ⇒1. Go to http://www.ab.com
2. Click on
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(http://support.automation.rockwell.com)
Allen-Bradley

1Publication 1734-UM008A-EN-P - February 2003
Preface
Read this preface to familiarize yourself with the rest of the manual. It
provides information concerning:
•who should use this manual
•the purpose of this manual
•related documentation
•conventions used in this manual
•terminology 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
ControlNet Adapter Module.
You should have a basic understanding of electrical circuitry and
familiarity with relay logic. If you do not, obtain the proper training
before using this product.
Purpose of this Manual
This manual is a reference guide for the ControlNet Adapter Module.
It describes the procedures you use to install, program and
troubleshoot your module. This manual also includes several
application examples.
Related Documentation
The following documents contain additional information concerning
Allen-Bradley products. To obtain a copy, contact your local
Allen-Bradley office or distributor.
Publication Publication
Number
ControlNet Media System Components List AG-PA002
ControlNet Cable System Planning and Installation Manual CNET-IN002
ControlNet Coax Tap Installation Instructions 1786-5.7
ControlNet Network Access Cable Installation Instructions 1786-TD006
ControlNet Repeater Installation Instructions 1786-2.7
Industrial Automation Wiring and Grounding Guidelines 1770-4.1
Point I/O Quick Start 1734-QS001
Point I/O Digital and Analog Modules and POINTBLOCK I/O
Modules User Manual 1734-UM001
Point I/O Technical Data 1734-TD002
Allen-Bradley

Publication 1734-UM008A-EN-P - February 2003
Preface P-2
Point I/O Installation Instructions 1734-IN510
Point I/O RS-232 ASCII Module User Manual 1734-UM009
Point I/O RS-232 ASCII Module Installation Instructions 1734-IN588
Point I/O ControlNet Adapter Installation Instructions 1734-IN582
Point I/O 24V dc Expansion Power Supply Installation Instructions 1734-IN058
Point I/O Field Potential Distributor Installation Instructions 1734-IN059
Point I/O 120V ac Input Module Installation Instructions 1734-IN010
Point I/O Input Module Installation Instructions 1734-IN051
Point I/O 2-Input Analog Module Installation Instructions 1734-IN053
Point I/O 2 Voltage Input Analog Module Installation Instructions 1734-IN001
Point I/O Encoders/Counter Module User Manual 1734-UM006
Point I/O 5V Encoders/Counter Module Installation Instructions 1734-IN005
Point I/O 24V Encoders/Counter Module Installation Instructions 1734-IN006
Point I/O 220V ac Input Module Installation Instructions 1734-IN008
Point I/O RTD Input Module Installation Instructions 1734-IN021
Point I/O Isolated Thermocouple Input Module 1734-IN011
Thermocouple and RTD Input Module User Manual 1734-UM004
Point I/O Input Module Installation Instructions 1734-IN052
Point I/O 120/220V ac Output Module Installation Instructions 1734-IN009
Point I/O Protected Output Module Installation Instructions 1734-IN056
Point I/O Protected Output Module Installation Instructions (OB2EP) 1734-IN586
Point I/O 2 Current Output Analog Module Installation Instructions 1734-IN054
Point I/O 2 Voltage Output Analog Module Installation Instructions 1734-IN002
Point I/O Protected Sink Output Module Installation Instructions 1734-IN585
Point I/O 2 Relay Output Module Installation Instructions (OX2) 1734-IN587
Point I/O 2 Relay Output Module Installation Instructions (OW2) 1734-IN055
Point I/O Synchronous Serial Interface Absolute Encoder Module 1734-UM007
Point I/O Cold Junction Compensation Wiring Base Assembly 1734-IN583
Point I/O Wiring Base Assembly Installation Instructions 1734--5.11
Point I/O 24V dc Very High Speed Counter Module 1734-IN003
Point I/O 5V dc Very High Speed Counter Module 1734-IN004
Very High Speed Counter Module User Manual 1734-UM003
ControlLogix ControlNet Interface Module User Manual 1756-6.5.3
ControlLogix Redundancy System User Manual 1756-UM523
Getting Results with RSLogix5000 9399-RLD300
Publication Publication
Number

Publication 1734-UM008A-EN-P - February 2003
Preface P-3
Common Techniques Used
in this Manual
The following conventions are used throughout this manual:
•Bulleted lists such as this one provide information, not
procedural steps.
•Numbered lists provide sequential steps or hierarchical
information.
•Bold type is used to call attention to screen names and steps in
procedures the user should follow.
•Steps written in the format I/O Configuration>New Menu identify
the main menu first and the sub menu second.
Terminology
The following table lists ControlNet terminology used throughout this
manual.
RSLogix5000 Configuration and Programming for the Logix 5000
Family of Controllers 9399-LOGIX5000TD
RSLinx Getting Results Guide LINX-GR001
RSNetWorx for ControlNet Getting Results 9399-CNETGR
Publication Publication
Number
Term Meaning
Actual Packet Interval (API) The measure of how frequently a specific
connection produces its data.
Connection ID (CID) An identifier assigned to a transmission
that is associated with a particular
connection between producers and
consumers that identifies a specific piece of
application information.
Network Update Time (NUT) Repetitive time interval in which data can
be sent on the link.
Requested Packet Interval (RPI) The measure of how frequently the
originating application requires the
transmission of data from the target
application.
Scheduled Data transfers that occur in a deterministic
and repeatable manner on predefined NUTs.
Unconnected Service The messaging service that does not rely on
the set-up of a connection between devices
before allowing information exchanges.
Unscheduled Data transfer that use the remaining time in
the NUT after the scheduled transfers have
been completed.
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Preface P-4

vPublication 1734-UM008A-EN-P - February 2003
Table of Contents
Chapter 1
Introducing the ControlNet
Adapter Module
Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Module Description and Features. . . . . . . . . . . . . . . . . . . . 1-1
Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Diagnostic Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Network Access Port (NAP) . . . . . . . . . . . . . . . . . . . . . 1-3
Network Address Switch Assemblies. . . . . . . . . . . . . . . 1-3
Chapter 2
Installing Your ControlNet
Adapter Module
Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Determine Power Requirements. . . . . . . . . . . . . . . . . . . . . 2-1
Set the Node Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Install the ControlNet Adapter . . . . . . . . . . . . . . . . . . . . . . 2-2
Wire the ControlNet Adapter . . . . . . . . . . . . . . . . . . . . . . . 2-3
Connect Programming Terminals to the Network
via the NAP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Install the I/O Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Install a Replacement ControlNet Adapter . . . . . . . . . . . . . 2-5
Chapter 3
Plan to Use Your ControlNet
Adapter Module
Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Overview of Adapter Operation. . . . . . . . . . . . . . . . . . . . . 3-1
I/O Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Connection Limit Exceeded 1734-ACNR . . . . . . . . . . . . . . . 3-3
Rack Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Direct Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Explicit Messaging Communications . . . . . . . . . . . . . . . 3-5
Software and Hardware Requirements . . . . . . . . . . . . . 3-6
Understand ControlNet I/O . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Scheduled Data-Transfer Connections on a ControlNet
Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Chapter 4
Configure the 1734 POINT I/O
ControlNet Adapter
What’s in This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Add Modules to the I/O Configuration. . . . . . . . . . . . . . . . 4-1
Select a Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Select a Communication Module. . . . . . . . . . . . . . . . . . 4-3
Select the 1734-ACNR. . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Add Discrete Modules to the I/O Configuration . . . . . . . . . 4-7
Add Analog Modules to the I/O Configuration . . . . . . . . . . 4-9
Download the Program to the Controller . . . . . . . . . . . . . . 4-11
Configure the 1734-ACNR Adapter . . . . . . . . . . . . . . . . . . . 4-13
Schedule I/O Module Connections. . . . . . . . . . . . . . . . . . . 4-15
Access Module Data via the 1734-ACNR Adapter . . . . . . . . 4-19
Change Configuration Data . . . . . . . . . . . . . . . . . . . . . . . . 4-22
An Overloaded 1734-ACNR . . . . . . . . . . . . . . . . . . . . . . . . 4-25
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vi Publication 1734-UM008A-EN-P - February 2003
Chapter 5
Diagnostics
Use the Indicators to Troubleshoot . . . . . . . . . . . . . . . . . . 5-1
Chapter 6
Specifications and
Safety Approvals
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Safety Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4
Appendix A
1734-POINT I/O
Module/RSLogix5000 Controller
Tag Reference
1734 POINT I/O
Catalog Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Valid Number Ranges for RSLogix5000 Data Types. . . . . . . A-2
Discrete 2 POINT Input. . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
Discrete 4 POINT Input. . . . . . . . . . . . . . . . . . . . . . . . . . . A-4
Discrete 2 POINT Output – Without Diagnostic Status . . . . A-5
Discrete 2 POINT Output – With Over Load and Open Load
Diagnostic Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6
Discrete 2 POINT Output – With Over Load
Diagnostic Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7
Discrete 4 POINT Output – With Over Load and Open Load
Diagnostic Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
Discrete 4 POINT Output – With Over Load
Diagnostic Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9
Analog 2 Channel Input . . . . . . . . . . . . . . . . . . . . . . . . . A-10
Analog 2 Channel Output . . . . . . . . . . . . . . . . . . . . . . . . A-19
Specialty I/O. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-23

1Publication 1734-UM008A-EN-P - February 2003
Chapter 1
Introducing the ControlNet Adapter Module
Chapter Objectives
This chapter describes the ControlNet adapter module (cat. no.
1734-ACNR). This chapter contains the following main sections:
•features
•hardware components, including
–diagnostic indicators
–network access port (NAP)
–network address switch assemblies
Module Description
and Features
This manual addresses the 1734-ACNR, Series A adapter. The Series A
adapter is compatible with ControlLogix, FlexLogix, and SoftLogix
(5800). It is not compatible with PLC5 and SLC processors. The Series
B adapter (not released when this manual was written) is required for
using PLC5 and SLC processors.
The 1734-ACNR adapter manages data transfers between controllers
on the ControlNet network and POINT I/O modules plugged into the
POINTBUS Backplane.
The ControlNet network is a communication architecture that allows
the exchange of messages between ControlNet products compliant
with the ControlNet International specification.
The 1734-ACNR adapter features include:
•a variety of control system solutions
• local communication network access through the network
access port (NAP)
• redundant media
IMPORTANT The 1734-ACNR adapter requires Series C POINT I/O
modules or later.
Allen-Bradley

Publication 1734-UM008A-EN-P - February 2003
1-2 Introducing the ControlNet Adapter Module
Hardware Components
The adapter module consists of the following major components:
Diagnostic Indicators
Health indicators are located on the front panel of the adapter module
(refer to illustration and table above). These indicators describe both
normal operation and error conditions in your remote I/O system.
A complete description of the diagnostic indicators and status display
and how to use them for troubleshooting is explained in Chapter 5.
Description Description
1 Coaxial Channel B 6 DIN Rail Locking Screw (orange)
2 Coaxial Channel A 7 System Power and Field Power
Indicators
3 Network Access Port (NAP) 8 RTB Removal Handle
4 Node Address Thumbwheel 9 Removable Terminal Block (RTB)
5 Status Indicators - Module,
POINTBUS, ControlNet Channel A,
and ControlNet Channel B
10 Safety End Cap
Module
Status
PointBus
Status
ControlNet A
Status
ControlNet B
Status
1734-ACNR
Field
Power
System
Power
1
6
5
4
3
2
2
8
7
9
10
43247

Publication 1734-UM008A-EN-P - February 2003
Introducing the ControlNet Adapter Module 1-3
Network Access Port (NAP)
The network access port provides a bidirectional electrical interface
for programming, maintenance, and I/O monitoring devices in both
redundant and non-redundant connections. See number 3 in the
illustration on the previous page.
Refer to the ControlNet Cable System Planning and Installation User
Manual, publication CNET-IN002A for more information.
Network Address Switch Assemblies
You must set two switch assemblies to configure your adapter module
with its unique network (node) address. These switches are located
on the front of the module. The figure on the previous page shows
the location of the switches (number 4). These switches are read on
powerup to establish the network address of the module. Network
address switch settings are described in Chapter 2.
TIP For optimum throughput, use lower numbers and
assign sequential addresses to ControlNet nodes.
Allen-Bradley

Publication 1734-UM008A-EN-P - February 2003
1-4 Introducing the ControlNet Adapter Module
Notes:

1Publication 1734-UM008A-EN-P - February 2003
Chapter 2
Installing Your ControlNet Adapter Module
Chapter Objectives
This chapter describes the procedures for installing your ControlNet
adapter module. These include:
•determining power requirements
•setting the network address switches
•installing the ControlNet adapter
•wiring the ControlNet adapter
•connecting programming terminals to the network via the NAP
•installing the I/O modules
•installing a replacement adapter to an existing system
Determine Power
Requirements
The 1734-ACNR adapter requires a typical 24 Vdc power supply with
a maximum of 10.2 watts of power @ 28.8 volts. It provides 5 watts @
5 volts for the POINTBUS and dissipates 5 watts @ 28.8 volts.
The ControlNet adapter module provides a maximum backplane
output current of 1.0A. See the POINT I/O ControlNet Adapter
specifications, chapter 6, for backplane current consumption for each
POINT I/O catalog number and the current consumption for each of
the POINT modules connected to the 1734 adapter.
Backplane current can be extended beyond 1.0A with a 1734-EP24DC
Backplane Extension Power Supply. The 1734-EP24DC can supply up
to an additional 1.3A of backplane current. Multiple 1734-EP24DC
modules can be used to reach the maximum limit of 63 base modules
if 25 or less of these modules are analog or specialty modules.
Note: See Chapter 3 for configuration information.
Allen-Bradley

Publication 1734-UM008A-EN-P - February 2003
2-2 Installing Your ControlNet Adapter Module
Set the Node Address
Set the node address using the 2-position thumbwheel switch. Valid
settings range from 01 to 99. Press either the + or - buttons to change
the number.
Install the
ControlNet Adapter
To install the adapter on the DIN rail prior to installing other base
units, proceed as follows:
1. Position the adapter vertically above the DIN rail.
2. Press down firmly to install the adapter on the DIN rail. The
locking mechanism will lock the adapter to the DIN rail.
3. Set the node address on the node address thumbwheel.
Module
Status
PointBus
Status
ControlNet A
Status
1734-ACNR
ControlNet B
Status
Field
Power
System
Power
0
A
B
2
43248
Network Node Address thumbwheel -
press either the + or - buttons to
change the number.
ATTENTION
!
You must use Series C POINT I/O modules
with the 1734-ACNR. Series A and B POINT
I/O modules will not work with the
1734-ACNR.
WARNING
!
If you connect or disconnect the ControlNet
cable with power applied to this module or
any device on the network, an electrical arc
can occur. This could cause an explosion in
hazardous location installations.
Be sure that power is removed or the area is
nonhazardous before proceeding.

Publication 1734-UM008A-EN-P - February 2003
Installing Your ControlNet Adapter Module 2-3
4. Remove the safety end cap by sliding it up. This exposes the
backplane and power interconnections.
Wire the
ControlNet Adapter
The illustration below guides you in wiring the ControlNet adapter.
ATTENTION
!
Do not discard the end cap. Use this end cap
to cover the exposed interconnections on the
last mounting base on the DIN rail. Failure to
do so could result in equipment damage or
injury from electric shock.
Module
Status
PointBus
Status
ControlNet A
Status
1734-ACNR
ControlNet B
Status
Field
Power
System
Power
A
B
02
43264
System Power
CHAS GND
C
V
NC
Node Address
Thumbwheel
Field Power
NC = No Connection
CHAS GND = Chassis Ground
C = Common
V = Supply
Coaxial Channel A
Module Status
PointBus Status
ControlNet A Status
Coaxial Channel B
Network Access Port
ControlNet B Status
30880
NC NC
C
VV
C
V dc
CHAS
GND
CHAS
GND
3
5
7
01
2
4
6
12/24V dc
ATTENTION:
Do not connect
120/240V ac power
to this supply.
This dc supply will be connected to the internal power bus.
NC = No Connection CHAS GND = Chassis Ground C = Common V = Supply
Allen-Bradley

Publication 1734-UM008A-EN-P - February 2003
2-4 Installing Your ControlNet Adapter Module
Connect Programming
Terminals to the Network
via the NAP
You can connect programming terminals to the ControlNet network
by connecting to the network access port (NAP). The method is
shown below.
Install the I/O Modules
After installing and wiring the adapter, you should install the
POINT I/O modules that will be used in your application.
For more information on installing and wiring the multiple POINT I/O
modules, see the installation instructions for each catalog number or
the POINT I/O digital and analog modules user manual in publication
1734-UM001. Use the list of publications in the Preface as a guide.
ATTENTION
!
Use the 1786-CP cable when connecting a
programming terminal to the network through NAPs.
Using a commercially available RJ-style cable could
result in possible network failures.
Module
Status
PointBus
Status
ControlNet A
Status
1734-ACNR
ControlNet B
Status
Field
Power
System
Power
A
B
02
Using 1784-PCC Communication Card and NAP
Programming Terminal
1784-PCC
1786-CP(1)
POINT I/O
ControlNet
adapter
(1) The 1786-CP cable can be plugged into any ControlNet product’s NAP to provide
programming capability on the ControlNet network. A programming terminal connected
through this cable is counted as a node and must have a unique address.
43400
IMPORTANT Do not leave any empty slots when installing a
POINT I/O system with the 1734-ACNR.

Publication 1734-UM008A-EN-P - February 2003
Installing Your ControlNet Adapter Module 2-5
Install a Replacement
ControlNet Adapter to an
Existing System
To replace a ControlNet adapter in an existing system, proceed as
follows:
1. Remove the existing adapter from the DIN rail as follows:
a. Disconnect the ControlNet cable from the adapter.
b. Pull up on the RTB removal handle to remove the terminal
block.
c. Remove the adjacent module from its base.
d. Use a small bladed screwdriver to rotate the DIN rail locking
screw to a vertical position. This releases the locking
mechanism.
e. Lift straight up to remove.
2. Remove the safety end cap on the replacement adapter by
sliding it up. This exposes the backplane and power
connections.
3. Position the replacement adapter vertically above the DIN rail.
(Make certain the DIN rail lock is in the horizontal position.)
Slide the adapter down, allowing the interlocking side pieces to
engage the adjacent module.
4. Press firmly to seat the adapter on the DIN rail. The adapter
locking mechanism will snap into place.
5. Set the node address on the node address thumbwheel.
6. Insert the RTB starting with the end opposite the handle into the
base unit. This end has a curved section that engages with the
wiring base.
7. Reinsert the terminal block by rotating the terminal block into
the wiring base until it locks itself into place.
8. Replace the adjacent module in its base.
9. Connect the ControlNet cable to the adapter. A tap must be used
to connect the adapter to the ControlNet cable. Do not directly
connect the adapter to the coax cable.
Allen-Bradley

Publication 1734-UM008A-EN-P - February 2003
2-6 Installing Your ControlNet Adapter Module
Notes: