Allen-Bradley POINT I/O User Manual

Publication 1734-UM014A-EN-P - November 2010
6 About the Adapters
• You maintain full control over the route taken by each message, which
enables you to select alternative paths for the same end device.
Understand the
Producer/Consumer Model
The CIP producer and consumer networking model replaces the old source
and destination (master and slave) model. The producer and consumer model
reduces network traffic and increases speed of transmission. In traditional I/O
systems, controllers poll input modules to obtain their input status. In the CIP
system, input modules are not polled by a controller. Instead, they produce
(multicast or unicast) their data either upon a change of state (COS) or
periodically.
Multicast is the default mode for version 17 Logix and earlier controllers and
unicast is the default for version 18 with multicast as a selectable option.
The frequency of update depends upon the options chosen during
configuration and where on the network the input module resides. The input
module, therefore, is a producer of input data, and the controller is a consumer
of the data.
The controller also produces data for other controllers to consume. The
produced and consumed data is accessible by multiple controllers and other
devices over the EtherNet/IP network. This data exchange conforms to the
producer and consumer model.
Specify the Requested
Packet Interval (RPI)
The Requested Packet Interval or RPI is the update rate specified for a
particular piece of data on the network. The RPI can be specified for the
adapter and include all of the I/O modules in the I/O system (using a
rack-optimized connection) or specified for a particular module (using direct
connection).
When you add a module or an adapter to the I/O configuration of a
controller, you must enter the RPI as a parameter. This value specifies how
often to produce the data for that device. For example, if you specify an RPI of
50 ms, it means that every 50 ms the device should send its data to the
controller and the controller should send the consumed (output) data to the
device.
Use RPIs only for devices that exchange data. For example, a ControlLogix
EtherNet/IP bridge module in the same chassis as the controller does not
require an RPI, because it is not a data-producing member of the system. Its
use is only as a bridge to remote racks.

Allen-Bradley POINT I/O Specifications

General

Power Supply	24V DC
Mounting	DIN Rail
Wiring Method	Removable terminal blocks
Communication Protocols	EtherNet/IP, DeviceNet, ControlNet
Operating Temperature Range	-20°C to 60°C (-4°F to 140°F)
Number of Channels	Varies by module (e.g., 8, 16, 32)
Certifications	CE, cUL
Type	Digital and Analog I/O Modules
Output Voltage	24V DC

Summary

Chapter 1 About the Adapters

Important Adapter Considerations

Notes important considerations before using the adapter and warns about module compatibility.

Set the Chassis Size

Explains the procedure for configuring the chassis size for I/O connections.

Specify the Requested Packet Interval (RPI)

Support of Rack-optimized and Direct Connections

Chapter 2 Install Your Adapter

Mount the I/O Adapter

Mount the POINT I/O Adapter on a DIN Rail

Mount the ArmorPOINT I/O Adapter and Base on a Wall or Panel

Install the POINT I/O Adapter Module

Install the ArmorPOINT I/O Adapter Module

Wire the POINT I/O Adapter

Wire the ArmorPOINT I/O Adapter

Chapter 3 Configure the Adapter for Your EtherNet/IP Network

Configuration Requirements

Outlines requirements for configuring IP address, subnet mask, and gateway address.

IP Address

Set the Network Address

Set the Network Address for POINT I/O Adapter

Set the Network Address for ArmorPOINT I/O Adapter

Use the Rockwell BootP/DHCP Utility

Guides on using the BootP/DHCP utility for IP address configuration.

Use DHCP Software to Configure Your Adapter

Warns about using DHCP and recommends fixed IP addresses for stability.

Chapter 4 Configure the Adapter for Direct Connection in RSLogix 5000 Software

Configure the I/O

Details adding modules to the controller's I/O configuration.

Add the POINT I/O Adapter to the I/O Configuration

Describes adding the POINT I/O adapter as a child of the Ethernet bridge.

Add the POINT I/O Modules to the I/O Configuration

Guides adding POINT I/O modules to the configuration list.

Create the Ladder Program

Configure the Adapter with Fixed IP Address

Details configuring a fixed IP address to maintain communication.

Recover From an Overloaded Adapter

Chapter 5 Configure the Adapter for Direct Connection and Rack Optimization in RSLogix 5000 Software

Set Up the Hardware

Describes setting up the I/O hardware for a ControlLogix system.

Create the Example Application

Configure the I/O Modules

Details adding I/O modules to the controller I/O configuration.

Add the Local EtherNet/IP Bridge to the I/O Configuration

Explains adding the EtherNet/IP bridge module to the I/O configuration.

Add the I/O Adapter to the I/O Configuration

Describes adding the I/O adapter as a child of the Ethernet bridge.

Add the POINT I/O Module and Configure for Rack-optimized Connection

Guides adding POINT I/O modules and configuring rack-optimized connections.

Add the POINT I/O Module and Configure For Direct Connection

Guides adding POINT I/O modules and configuring direct connections.

Download the Program to the Controller

Provides steps to download the program to the ControlLogix controller.

Verify the Module Chassis Size

Explains synchronizing chassis size from software to hardware.

Access Module Data

Appendix A EtherNet/IP I/O Adapter Specifications

General Specifications – POINT I/O and ArmorPOINT I/O 2 Port EtherNet/IP Adapters 1734-AENTR, 1738-AENTR

Lists general specifications for POINT and ArmorPOINT I/O 2 Port EtherNet/IP Adapters.

Specifications – POINT I/O 2 Port EtherNet/IP Adapter 1734-AENTR

Specifications – ArmorPOINT I/O 2 Port EtherNet/IP Adapter 1738-AENTR

Appendix B Adapter Web Dialogs

Work with the Diagnostics Pages

Use the Diagnostic Overview Page

Use the Network Settings Page

Use the Ethernet Statistics Page

Use the I/O Connections Page

Work with the Configuration Pages

Use the Network Configuration Page

Appendix C Configure the RSLinx Ethernet Communication Driver

Install the RSLinx Software

Provides instructions for installing the RSLinx software.

Configure the AB_ETH Driver

Details configuring the AB_ETH Ethernet communication driver.

Configure the AB_ETH/IP Driver

Explains how to configure the AB-ETHIP Ethernet communication driver.