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Rockwell Automation Publication 1715-RM001A-EN-P - June 2019
Chapter 3
Using the 1715 I/O
I/O Termination Assemblies (TA)
I/O termination assemblies are inserted into the I/O base units. There are eight
types of termination assemblies (two for each module) depending on the
architecture of your system and the I/O modules you are going to use.
For this example, we only show the duplex assemblies.
• A 1715-TADIB16D, 16-channel duplex TA that provides termination for
16 digital input channels and mates with up to two 1715-IB16D digital
input modules
• A 1715-TADOB8DE digital output, 24V DC 8-channel duplex TA that
provides fault tolerant operation for eight digital output channels and
mates with redundant 1715-OB8DE digital output modules
• A 1715-TADIF16, 16-channel duplex TA that provides termination for 16
isolated analog input channels and mates with up to two 1715-IF16 16-
channel analog input modules. The channels are isolated.
• A 1715-TADOF8, 8-channel duplex termination assembly provides fault
tolerant operation for eight analog output channels through inter-module
communication and by routing the output source current from two
modules to the same field device
Power Requirements
A 24V DC power supply is required. For proper duplex operation, two power
supplies are recommended. This is not required for fail-safe safety systems but for
availability or energize-to-action systems.
