A-BSLC 500 EtherNet/IP Adapter

The producing device contains the path information that steers the message 

along the proper route to reach its consumers. Since the producing device 

holds this information, other devices along the path simply pass this 

information; they do not store it.

This has the following significant benefits: 

• You do not need to configure routing tables in the bridging modules, 

which greatly simplifies maintenance and module replacement.

• 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 periodically or at a cyclic rate.

Unicast is the default for version 20 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.

Support of Direct 

Connections

The EtherNet/IP adapter only supports direct connections. A direct connection 

is a real-time data transfer link between a Logix controller and a 1746/1747 I/O 

module through the 1747-AENTR adapter. Direct I/O connections occur at a 

cyclic rate specified by the RPI during configuration

Install Your Adapter

This chapter describes how to install the 1747-AENTR adapter and connect it to 

the EtherNet/IP network.

The following table lists where to find specific information.

Set the Network Address 

Switches

The network address switches are set to 999 and DHCP enabled, by default. 

You can set the network Internet Protocol (IP) address in the following ways: 

• Use the network address switches on the module.

• Use a Dynamic Host Configuration Protocol (DHCP) server, such as 

Rockwell Automation BootP/DHCP.

• Retrieve the IP address from nonvolatile memory.

The adapter reads the network address switches first to determine if the 

switches are set to a valid number. You set the node address by using the 

network address switches. Valid settings range from 001…254.

When the switches are set to a valid number, the adapter’s IP address is 

192.168.1.xxx (where xxx represents the number set on the switches).

The adapter’s subnet mask is 255.255.255.0 and the gateway address is set to 

0.0.0.0. The adapter does not have a host name assigned, or use any Domain 

Name System when using the network address switch settings.

If the switches are set to an invalid number (for example, 000 or a value greater 

than 254 excluding 888), the adapter checks to see if DHCP is enabled. Setting 

the switches to 888 restores default factory settings. 

Topic Page

Set the Network Address Switches 15

Determine Power Requirements 18

Install the Adapter Module in the Chassis 18

Connect Your Adapter to the Ethernet/IP Network through RJ-45 Connection 19

Chapter Summary 2

Enable Web Server in Static IP mode

1. Set the switches to 000 and cycle power to the adapter.

The module LED flashes red and the four-character status display scrolls 

the message “Web Server Enabled”.

2. Set the switches to the desired IP address and cycle power to the adapter.

3. In your web browser, enter the IP address of the adapter.

The web server home page displays.

Disable Web Server in Static IP mode

1. Set the switches to 901 and cycle power to the adapter.

The module LED flashes red and the four-character status display scrolls 

the message “Web Server Disabled”.

2. Set the switches to the desired IP address and cycle power to the adapter.

3. In your web browser, enter the IP address of the adapter.

The web server home page does not display.

Enable Web Server in DHCP mode

Before you begin, verify that you have an active DHCP server on your network.

1. Set the switches to 000 and cycle power to the adapter.

The module LED flashes red and the four-character status display scrolls 

the message “Web Server Enabled”.

2. Set the switches to 999 and cycle power to the adapter.

3. In RSLinx software, check the IP address that was assigned to the 

adapter by the DHCP server and verify the connection.

4. In your web browser, enter the IP address of the adapter.

The web server home page displays.

Disable Web Server in DHCP mode

Before you begin, verify that you have an active DHCP server on your network.

1. Set the switches to 901 and cycle power to the adapter.