The CompactLogix I/O Modules

Learn Logix Part 2.7. This article gives an overview of the 1769 and 5069 CompactLogix I/O modules and their features.

Learn Logix is a series of articles designed to teach you everything you need to know to work with Rockwell Automation’s Studio 5000 Logix Designer and the Logix 5000 series of PLCs.

In the last part of the series, we learned about the CompactLogix controllers, their features, and the differences between the 1769 and 5069 series of CompactLogix controllers. You can find that part here or if you’re new to the series, you can find all of the previous parts here.

In this part of the series, we’ll look at the CompactLogix I/O modules and their features.

Before we dive into the details of the CompactLogix I/O modules, let’s have a quick recap about local and distributed I/O modules.

In a Logix 5000 system, I/O modules can be local I/O modules or distributed I/O modules.

Local I/O modules are mounted in the same bank as the controller that contains the module’s configuration information.

Distributed I/O modules are mounted in a different bank as the controller that contains the module’s configuration information.

In the image above, you can see both local CompactLogix I/O modules and distributed CompactLogix I/O modules.

1769 I/O Modules

1769 I/O Modules

1769 I/O modules are compatible with the 1769 CompactLogix series of controllers. These I/O modules communicate either through a 1769 CompactLogix controller or a 1769-AENTR Ethernet communication module.

Both 1769 input and 1769 output modules have similar features. These features include;

Movable Bus Connector

The movable bus connector is a movable interface that connects modules together through the CompactBus backplane.

DIN Rail Latch

1769 I/O modules have a DIN rail latch, which is a movable piece of plastic to mount the I/O module on a DIN rail.

Removable Terminal Block

1769 I/O modules feature a Removable Terminal Block, also known as an RTB, that is used to connect field wiring to the I/O module.

The 1769 I/O module RTBs are connected to the I/O module with two screws.

Status Indicators

1769 I/O modules are equipped with status indicators to show the health of the module and the communication status on the CompactBus.

5069 I/O Modules

5069 I/O Modules

5069 I/O modules are compatible with the 5069 series of CompactLogix controllers. These I/O modules communicate with either a 5069 CompactLogix controller or a 5069-AEN2T Ethernet communication module.

Both 5069 input and 5069 output modules have similar features. These features include;

Module Status Indicators

The module status indicators show the overall health of the module and its communication status on the bus.

Interlocking Side Pieces

Interlocking side pieces allow modules to be connected together to communicate on the bus.

Removable Terminal Blocks

The 5069 I/O modules include RTBs to connect the field wiring to the module.

I/O Status Indicators

The 5069 I/O modules include status indicators for each input or output on the module to see the state of the I/O point at a glance.

Conclusion

In this article, we learned about the 1769 and 5069 CompactLogix I/O modules and their features.

In the next part of the series, we will learn about the communication modules that are available for the CompactLogix system. If you haven’t already, be sure to subscribe to the mailing list below to be notified when the next part is available.

Update: You can find the next part of the Learn Logix series, The CompactLogix Communication Modules, here. This article gives an overview of the CompactLogix communication modules and their features.

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