Rockwell Automation 1715-OF8I Redundant I/O System User Manual - Manual (Page 127)

Rockwell Automation Publication 1715-UM001C-EN-P - March 2014 127
Digital I/O Operation Chapter 3
Determining Output Module
Compatibility
1715 digital output modules can be used to drive a variety of output devices.
Typical output devices compatible with the 1715 digital outputs include the
following:
• Motor starters
• Solenoids
• Indicators
When designing a system, do the following:
• Make sure that the outputs can supply the necessary surge and
continuous current for proper operation.
• Make sure that the surge and continuous current are not exceeded.
Damage to the module could result.
When sizing output loads, check the documentation supplied with the output
device for the surge and continuous current needed to operate the device.
The 1715 digital outputs are capable of directly driving the 1715 digital inputs.
The exceptions are DC diagnostic input modules. When diagnostics are used, a
shunt resistor is required for leakage current.
For more information specifically on the compatibility of motor starters to
output modules, see ControlLogix Digital I/O Modules, publication
1756-UM058 .
Termination Assemblies
There are two types of termination assemblies for the digital output modules.
The application of your system determines which termination assembly you
need:
• 1715-TASOB8DE 8-channel, digital output, simplex termination
assembly
• 1715-TADOB8DE 8-channel, digital output duplex termination assembly
Using Features Common to
1715 Standard Digital I/O
Modules
The following features are common to all 1715 digital I/O modules.
Removal and Insertion Under Power (RIUP)
All 1715 digital I/O modules can be inserted and removed from the I/O base
unit while power is applied. This feature lets the user have greater availability of
the overall control system because, while the module is being removed or
inserted, there is no additional disruption to the rest of the controlled process.