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Rockwell Automation Publication 1715-RM001A-EN-P - June 2019
Chapter 3
Using the 1715 I/O
Components
See chapter 2 of the
1715 I/O user's manual (1715-UM001)
important considerations.
The 1715 Redundant I/O System is a remote redundant I/O system that was
developed to communicate with a Logix controller in a ControlLogix enhanced
redundant system by using the EtherNet/IP network and includes these
components:
• A pair of 1715-AENTR adapters.
• 1715 digital and analog I/O modules.
• A 1715-A2A redundant adapter base unit connects to a 1715-A3I0 I/O
module base unit from its right side only to form the backplane for the
system.
• Termination assemblies are available in Simplex and Duplex configuration.
They mount onto the 1715-A3IO I/O module base unit, and connect the
I/O modules to the I/O wiring.
• Each 1715-A3IO I/O base unit holds up to three I/O modules. Up to 24
I/O modules can be added to the system. That is either 24 simplex or 12
duplex or any combination of modules up to 24 I/O modules maximum.
• Module pairs can span across two bases.
• The system is built on DIN rails within a cabinet enclosure.
• 1715-C2 expansion cables can be used to allow for space restrictions of the
system within the cabinet.
Figure 7 - Typical 1715 I/O System with Dual Adapters and a Mix of Simplex and Duplex I/O
Modules
IMPORTANT
The I/O base units only connect to the right side of the Adapter base unit.
